How did early moderns feed the soil?

by Renaissance of the Earth Fellow, Hannah Gould

Hungry Earth 

In my recent entries, I’ve shown a lively microscopic earth roaming beneath our feet. In that microscopic earth we are witness to a beautiful cycle of life and death into decomposition through the lives of wriggly nematodes helping to balance out the soil foil web. As organisms face climate instability and ecosystem degradation, it is crucial that we are considering not only what is above but also belowground. After all, our lives depend on these tiny creatures! 

Thinking with the early modern past can help us shape this narrative. We may consider questions such as: How did early moderns judge soil health without access to modern technology? How did early moderns perceive creatures in the soil? Did early moderns face drought in the soil affecting their plants? What was the solution? For early modern agriculture, process was the answer. 

In Digging the Past: How and Why to Imagine Seventeenth-Century Agriculture,  Frances E. Dolan describes an early modern ideology behind soil “not as a given but a work in progress” (15) that “favors art over nature, process over place” (23). For today’s agriculturalists, quick fixes overpower the process that goes into maintaining healthy, balanced soils. As large-scale, industrial production overpowers our food system, we introduce more harm to our soils and organisms. This kind of production leads to increased chemical inputs on crops and harmful use of antibiotics in livestock (NRDC). As a result, we need to pivot to something more sustainable and be increasingly mindful of our waste streams. Professor Dolan has been thinking about soil as a process based on early modern teachings, amplifying authentic compost as the answer to our troubles. She claims compost as “rooted in the ground, absorbing the waste products of a particular place and enabling a given locale to remain productive over time” (23). Professor Dolan highlights a significant element of composting which resonates with our consideration of soil as living. Compost as a means to absorb waste and maintain soil as “productive” is crucial to viewing soil for what it actually is: a living being which needs tending, and not a virus that can be cured with a vaccine. While producers use chemical solutions to deter pests and disease, they are unknowingly killing the beneficial organisms which contribute to the health of our food systems.   

John Worlidge’s 1681 Systema Agriculturae at RC Rare S509 .W6 1681

During the Renaissance of the European North, John Worlidge’s 1681 Systema Agriculturae at RC Rare S509 .W6 1681 wrote “labour seems to be the best soil” (84). For early moderns, chemical fertilizers and pesticides did not have a seat at the table. In Digging the Past, Professor  Dolan illuminates labor as a “fundamental ingredient in compost” (23), emphasizing the importance of stewardship when working with the land. Composting as a laborious task lends us  a deeper understanding and connection to fertility and abundance within soil. In her full study of seventeenth century agriculture and practice, Professor Dolan continues by connecting composting through the early modern period to a principle of “one puts back into the soil what has been taken from it” (25). Her scholarship allows us to see how early moderns perceived soil health and fertility through the interconnectedness between labor, compost, and soil. 

Walter Blith’s 1653 The English Improver at RC Rare S509 .B6 1653

For producers in the Renaissance, food security entailed investing time and energy into the land and soil. In The English Improver (1653) at RC Rare S509 .B6 1653, Walter Blith articulates, “[...] in all which were there but a little patience, and addition of a little more cost and pains, there would not be one foot of ground more lost, but a double or triple advantage raised upon it in few years, and ever after” (115). Blith’s campaigns for the labor which goes into a fruitful harvest is reminiscent of Worlidge’s call to labor for the best soil. There is a clear consensus that your “fruit” is dependent on working with and for the soil.  

Maintaining the authentic kitchen garden has led me to appreciate the art that goes into cultivating abundant plants. It is of no surprise to seasoned gardeners that the upkeep and vitality of one’s garden is directly proportionate to the amount of care that’s put into it. 

My time in the kitchen garden has shown me the realities of tending to land, even on a smaller scale. At the Kinney Center, we’ve guided our garden management similar to Dolan’s descriptions of compost piling. Particularly, welding “together symbolic and functional, practical and ritual” with a philosophy “rooted in a concrete space and dynamic” (42). For early moderns, gardening and food production depended upon ecological cycling. As I explored in my previous entries regarding nematology, our food web expands beyond the aboveground inputs and outputs from human intervention. The micro and macro flora and fauna that encompass our soil structures are perpetually at play. 

Although early moderns did not have access to modern technology to understand chemical ratios and concoct chemical fertilizers, they did have a hand in feeding the soil. In Walter Blith’s The English Improver, Blith claims that all good stewards cast “fearn, rushes, or thistles, or any coarse straw, or trash whatever” to the ground to make a “very good” soil (152). Interestingly, he likens the materials to “trash” suggesting that composting, more specifically soil health, benefits from collecting our waste. Blith continues by adding the leaves of trees (152) as a means to improve soil health. In identical terms, Worlidge’s Agriculturae writes, “let him cast his water, fodder, litter, dung, weeds, etc. and there let them lie and rot together” (85). The practice of letting leaves and other tree debris decompose remains a staple of the Kinney Center. Each Spring we welcome the foliage dropped from the wild woods that surround us. The commonly misinterpreted “trash” offers a great feast for the lively organisms that populate our garden. By feeding our microorganisms, we are contributing to the soil food web, and therefore feeding ourselves!  

John Worlidge’s 1681 Systema Agriculturae at RC Rare S509 .W6 1681

Turning to Worlidge’s Agriculturae, he shares similar findings regarding waste as the food of soil. Notably, Worlidge offers a more expansive array of options to choose from when feeding a hungry soil. Worlidge claims that there are many kinds of materials that may be used to feed and “enrich” (64) soils. Worlidge states, “some whereof are taken from the earth, as chalk, marle, clay, etc. others from the waters, as sands, weeds, etc. others also are the lungs and excrements of living creatures, and others that are several sorts of vegetables themselves, and other casual things, as soot, rags, etc.” (64). Worlidge attests that all of these are “useful and beneficial” (64) to the land and soil. Worlidge’s list guides readers towards the reality of what earth provides for us to help our lands, naturally. From minerals to animals to plants, we are surrounded by offerings from the natural world to recycle our waste and put back into the soil what we have many times taken away from it.   

Thinking with the knowledge of Worlidge and Blith, scholars can refer back to Dolan’s views on soil, more specifically composting-as-a-process. When we work with our land, we discover that the soil is unsatisfied. Dolan wonderfully articulates the labor and time that goes into fostering generous land in an effort to reinstate balance. 

I’ve seen through my work in the Kinney Center kitchen garden and library that the resources are there, dying to be explored and read! Thinking with the early modern past can help to inform our current land stewardship practices. The teachings within rare books emphasize the importance of minding creatures above and below the surface, putting waste to use, and inspiring ecological balance and cycling.  

Soils are the backbone of our production systems, constantly adapting to changing weather conditions and providing necessary sustenance for the entire planet, despite our constant abuse and often too-rapacious appetites for consumption. As we persevere through an era of environmental uncertainty and catastrophe, it is important that we remain tethered to our figurative and literal roots. As our earth calls out to us for help, isn’t it time we answer? 

References:    

Dolan, Frances E. Digging the Past : How and Why to Imagine Seventeenth-Century Agriculture. 1st edition., University of Pennsylvania Press, 2020 

Blith, Walter. The English Improver Improved; or, The Svrvey of Hvsbandry Svrveyed. Printed for John Wright, at the Kings-head in the Old-Bayley, 1653 

Industrial Agriculture 101, www.nrdc.org/stories/industrial-agriculture-101. Accessed 22 Apr. 2025. 

Worlidge, John. Systema Agriculturae. Thomas Dring. 1681.  

Hannah would like to extend her deepest gratitude to the following individuals for their time and effort in making her independent study come to life. Without your help, it would not have been possible. 

Hannah in the garden, Fall 2024

Nicole Burton, Stockbridge School of Agriculture 
Liz Fox, Arts and Academic Coordinator at the Kinney Center  
Jeffrey Goodhind, Kinney Center Librarian 
Melanie Morgan, RoE Fellow
Marjorie Rubright, Director, Kinney Center & Associate Professor of English  
Rob Wick, Emeritus Professor of Plant Pathology & Nematology

What happens when nematodes stop squirming?

by Renaissance of the Earth Fellow, Hannah Gould

Afterlife 

Our soils are filled with abundant life and activity, but they are also host to bygone decomposing critters. Mythically and literally speaking, soil is both a groundspring and a grave. 

Small carrot plants in dry garden soil. Fall 2024.

I was able to fully understand this double-perspective onto soil when I took a peek at our samples underneath the microscope. After collecting samples from the Kinney Center in Fall 2024, I was unable to look at them until early Spring 2025. Therefore, the samples received substantial time to dry out and potentially lose microorganism activity. When it was time to look under the scope, I came across several nematodes which appeared shriveled and stiff within the sample. Considering the normally-active, quick nature of nematodes, I was struck by the utter lack of activity from some of the specimens. What happened to the squirming, moving, kinetic life of my friendly nematodes?

I began to ask: what happens when nematodes lose their wily energy and no longer work with the plants? What do they leave us within the soil? What causes nematode populations to die off? How are nematodes impacted by changing soils as a result of climate change?  

Bacterial (free-living) nematode

Upon talking with Emeritus Professor of Plant Pathology & Nematology, Robert Wick, he explained that some of the nematodes could have died as a result of the dryness of the sample. Nematodes can often survive desiccation but may be killed from experiencing excessive heat. The nematodes can also die from natural causes. An example of this might include fungi, which kill living nematodes and also scavenge for dead nematodes. Specifically, nematophagous fungi are able to capture the nematodes and reduce the population size of plant-parasitic nematodes. They are sometimes referred to as “nematode-trapping” or “nematode-destroying” fungi (Zhang et al.). Other than for hungry fungi, nematodes do not provide a very good food source within the soil. Nematodes do provide protein as a result of their thick cuticle (see below). Although nematodes may not leave us with reliable food sources post-death, their roles as decomposers are essential to a viable, healthy ecosystem.   

In the case of my trial, our nematodes’ inactivity was likely a result of sustained dryness. Nevertheless, it is important to consider how growing environmental changes are influencing microorganism populations, including nematodes. Due to the versatility of nematodes, changing climatic conditions may simultaneously positively and negatively impact soils. Current research suggests that higher soil temperatures can cause reduced nematode reproduction. Yet, crop losses are likely to increase because the higher temperatures increase the virulence of plant-parasitic nematodes (Khanal & Land, 2023).

Global warming, elevated CO2, heat waves, droughts, floods, wildfires, and storms can all influence the risk potential and habits of plant parasitic nematodes. As a result of our climatic instability, it is important for agriculturalists to consider regenerative techniques that regulate nematode populations and ecological cycling. For instance, regenerative approaches such as crop rotation and cover cropping can provide safer alternatives to improve food production, pest prevention, and overall environmental protection (Dutta & Phani, 2023). Through ethical land management, the small but mighty nematode is able to thrive and improve the life and vitality of our soils. While we may not directly see them at work, our trusty nematodes are consistently working to balance soils and produce the plants we know and love and to sustain the cycles of life and death that feed us all.  

References: 

Dutta, Tushar K., and Victor Phani. “The Pervasive Impact of Global Climate Change on Plant-Nematode Interaction Continuum.” Frontiers, Frontiers, 24 Mar. 2023, www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2023.1143889/full.

Khanal, Churamani, and Julian Land. “Study on Two Nematode Species Suggests Climate Change Will Inflict Greater Crop Damage.” Nature News, Nature Publishing Group, 30 Aug. 2023, www.nature.com/articles/s41598-023-41466-x.  

Zhang, Ying, et al. “Fungi-Nematode Interactions: Diversity, Ecology, and Biocontrol Prospects in Agriculture.” Journal of Fungi (Basel, Switzerland), U.S. National Library of Medicine, 4 Oct. 2020, pmc.ncbi.nlm.nih.gov/articles/PMC7711821/#:~:text=In%20contrast%2C%20a%20number%20of,as%20nematophagous%20fungi%20%5B8%5D. 

What is beautiful rotting?

by Renaissance of the Earth Fellow, Hannah Gould

Decomposition as Production

Decay. Rot. Spoil. Fester. Putrefy. Decompose. These are all words we don’t normally associate with a beautiful garden, but each are vital to the health of a plant or crop. Although it takes on many definitions, decomposition can be understood as the separation of a thing “into constituent parts or elements or into simpler compounds” (Merriam Webster, 2025). If we use this definition as a way to understand decomposition within soils, we can reframe it from being a negative term associated with death to an adjacent term for health and production. When a plant undergoes decomposition, there is significant work occurring behind the scenes thanks to a chain of microorganisms inhabiting the soil. One of these microorganisms, the friendly nematode, is a significant contributor to that decomposition.  

Bacterial (free-living) nematode

At the Kinney Center, the kitchen garden is host to 64 free-living nematodes per 100 cc of annual garden soil and 84 free-living nematodes per 100 cc of perennial garden soil. As a result, we are effectively surrounded by hundreds of small but mighty decomposers! These “invisible” free-living nematodes are notorious for their role in decomposing organic matter to recycle nutrients in the soil. Despite their predatory reputation, free-living nematodes feed on the bacteria and fungi which decompose organic matter. With their presence, free-living nematodes are able to hasten the decomposition process beneath plants. Free-living nematodes are able to get minerals and nutrients from bacteria, fungi, and other substrates into the soil where plant roots can uptake them (EDIS, 2022). Thanks to their recycling habits, free-living nematodes are instrumental in providing adequate nutrition to our plants. Without free-living nematodes, or in minimal numbers, plant and soil health is nearly destined to suffer. 


When we look beyond the surface of our soils, we may conjure up images of rotting plants in the face of hungry nematodes. However, it is critical to recognize that not all nematodes are bad in a balanced biological system. With the presence of free-living nematodes, we are also in the presence of beautiful rotting occurring within our soils. Free-living nematodes help release excess nitrogen in the form of ammonium for plants, as well as contributing to nitrogen mineralization. Due to this, plants are able to effectively conduct photosynthesis. These nematodes also help to distribute bacteria and fungi through the surface and their digestive systems within the soil. Simultaneously, providing a source of food for other compositing invertebrates, including centipedes, fly larvae, and mites (EDIS, 2022). Free-living nematodes also help to prevent disease, which is beneficial to overall soil health. Thanks to the hard work of our friendly nematodes, we need to embrace the beauty behind rot and decomposing matter. Not only is it valuable to other microorganisms, it is significant to the health and wellbeing of our soils, plants, and ultimately the entire food web.   



Why do we want our plants rotting? 

Rot and decay are not unique to the discolored, limp plant left in your garden from the summer. It also includes the separation and redistribution of resources beneath that plant propelling through the soil. Although it cannot be seen with the naked eye, rotted plants make for happy microorganisms. Decomposers like nematodes are commonly unseen, leaving humans to ignore and often neglect the health of the soil for the sake of external aesthetics. This project helps to illustrate the biological happenings beneath the surface. Within our soils, microorganisms are taking full advantage of the plants we worry over. Nematodes in particular are busy working with the roots, bacteria, and fungi which fill the soils we carelessly trample. Through the work of nematodes and other microorganisms, we are able to contribute to a larger ecological cycle which prioritizes not only what is above, but also below, the surface. 

Fallen leaves and branches providing cover and organic matter for soil. Winter 2024.

When we leave a “dying” plant to decompose in the soil, we can help to reduce plant-parasitic nematodes and improve soil structure. This occurs because compost and organic amendments can help to suppress damaging nematode populations within the soil (EDIS, 2022). In fact, the greater amount of organic matter through rotting plants provides fodder for fungi and bacteria to break down. Thus, creating more food for free-living nematodes. Although it may appear rough on the outside, we are encouraging healthy organismic activity on the inside.  

Nematodes are influential throughout the soil profile in many ways. Nematodes can help to regulate other soil organism populations, provide food sources for soil organisms, mineralize nutrients into plant-available forms, and consume disease-causing organisms (Curell, 2013). Overall, there are many benefits to healthy nematode populations in soils. 

The prosperity of our plants challenges us to awaken our minds to believe in the power of the invisible. We have an obligation to learn and understand nematode habits in conjunction with the bigger soil picture. All too often we forget that plant health and yield productivity are connected with microorganisms activity and population. Although we cannot see them, they are still constantly working to cultivate the land we know and love. The invisibility of decomposers becomes not so invisible when our perennial plants turn from rotted stalks into lush flowers each spring. We are all too quick to disregard the decomposition process in favor of perceived cleanliness or beautiful looks. When we take the time to dig and think at a distance, we are deepening our relationship to the land and soil. We are reminding ourselves that the future of our landscape is linked to the very busy but invisible work of today’s and yesterday’s nematodes. 

References: 
Ask IFAS - Powered by EDIS. “Eeny-012/IN138: Soil-Inhabiting Nematodes, Phylum Nematoda.” Ask IFAS - Powered by EDIS, edis.ifas.ufl.edu/publication/IN138. Accessed 9 Mar. 2025.  

Christina Curell, Michigan State University Extension. “Are Soil Nematodes Beneficial or Harmful?” MSU Extension, 21 Jan. 2022, www.canr.msu.edu/news/are_soil_nematodes_beneficial_or_harmful.  

“Decompose Definition & Meaning.” Merriam-Webster, Merriam-Webster, www.merriam-webster.com/dictionary/decompose. Accessed 9 Mar. 2025.  

How do nematodes mingle? Renaissance of the Earth Fellow, Hannah Gould

by Renaissance of the Earth Fellow, Hannah Gould

A Community of Nematodes 

When we explore the microorganisms which populate our soils, we are welcomed into the mystical underworld of nematodes! Using a microscope as our tour guide, we are taking a magnifying glass to the lives of these whirly twirly creatures and their relationship with soil and plants. At the Kinney Center, nematodes are in abundance and thriving alongside other micro flora and fauna. During my project, I identified 6 varieties of nematodes, including: free living, lance, stunt, ring, lesion, and Tylenchus. These nematodes are all unique in physical appearance, but share similar traits in how they interact with plants. When we consider a community of nematodes, it is important to know that nematodes are very independent creatures. In fact, we are more likely to see nematodes in competition at some level rather than acting as a team. However, nematodes do share common tasks beneath the soil.  

Lesion head

For the Kinney Center soils, lance, stunt, ring, lesion, and Tylenchus are all plant parasitic nematodes which kill the root cells of plants by probing them with their stylets (see picture below). To get a better understanding, we can picture an energized, wiggly nematode swimming beneath our plants trying to find its next meal. Once the nematode has reached the root tissue of its desired plant, the nematode will use its spear-like stylet and mouth to pierce and munch on those delicious roots. Meanwhile, free living nematodes are more apt to feed on bacteria, algae, fungi, and dead organisms. All of these nematodes contribute to nutrient recycling which plays an integral role in soil health and biodiversity (ScienceDirect, 2017).

The lesion nematode, Pratylenchus, is the most destructive of the bunch due to its ability to burrow into the root of a plant. When it’s burrowing, Pratylenchus can create brown or black lesions to form on plant roots. These lesions can lead to stunted growth, reduced plant vigor, defoliation, or yield declines depending on the abundance and type of plant present (UC Davis, 2024). Whereas, the other plant parasitic nematodes are ectoparasitic, meaning they remain in the soil while still killing the root cells and create less overall damage. All soils are host to plant parasitic and free-living nematodes, but these soils can become more concerning in agricultural settings. Plant parasitic nematodes may be worrisome because, after 10,000 years of selection, our genetically altered plants have lost genes for resistance. It is essential that we closely monitor microorganism activity alongside general observation to get a comprehensive understanding of our plants. The community of nematodes living beneath our soils represent a small fraction of the fascinating biological diversity influencing our plants and soils.  

Do you wonder what the point is of these destructive forces? Keep reading to find out more!

What happens when you dig dirt?

by Renaissance of the Earth Fellow, Hannah Gould

Digging Dirt

In Fall of 2024, right before the first frost, I took a soil probe and collected several samples of soil from across the Historical Renaissance Kitchen Garden at the Kinney Center for Interdisciplinary Renaissance Studies. During my time as a Renaissance of the Earth Fellow, I acquainted myself with the land which surrounds the Kinney Center. I surveyed, ran through the vast meadow, harvested vegetables from the garden, and pruned branches from the orchard. As a Plant and Soil Science scholar, I repeatedly found myself asking a question through my work: What happens when you dig deep? What lies beneath our feet and the plants which inhabit the garden? These questions would become the foundation of my independent research project on the Kinney Center’s soil and the blog that follows…

Hannah collecting soil samples

To start, I gathered soil samples, separating them based on the herbal/annual side of the garden and the perennial side, and mixed them. I then laid each of the samples out on a pan to dry before bringing them to a microscope. During my search for materials, I reached out to Emeritus Professor of Plant Pathology & Nematology, Robert Wick, to ask him if I could borrow his lab for my project, which I was working on as a Fellow with the Director of the Kinney Center and founder of the Renaissance of the Earth Project: Prof. Marjorie Rubright. Marjorie invited me to work in the garden as my lab and welcomed me to the Center’s library as my research hub. Professor Wick generously offered up his knowledge and Nematology Lab to welcome my samples.  

To understand the teeming biology beneath our feet, I knew I would need to look at these samples under a scope. Although humans interact with the soil through a variety of activities, the absence of much macroflora and macrofauna is deceiving to our understanding of what is active beneath the surface. My mission was to uncover life that cannot be seen through the naked eye. I wanted microflora and fauna, specifically nematodes, to be the star of my very own soil show. The story that follows showcases the complexity of this life beneath our feet – sustaining the earth and sustaining all of us in the process. I hope you’ll enjoy! 


What is a nematode?  

A nematode is a non-segmented microscopic eel-like roundworm that can be beneficial or non-beneficial while living in soil or plant root tissues (Washington State University, 2017). Nematodes are incredibly diverse and present a variety of benefits to agricultural systems, depending on the production system and breed of nematode present. Due to the activity throughout the Kinney Center and years of varied maintenance in the garden, I wanted to pay particular attention to nematode populations to help understand the current soil conditions and health.  

Bacterial (free-living) nematode

To do this, Rob and I conducted a nematode extraction to isolate the nematodes from the soil particles and plant tissues. We conducted this extraction with the soils by wet sieving and sugar flotation to be able to identify and count the number of nematodes present. We want to know this because it will tell us more about the abundance of organismic activity within the soils, and depending on the type of nematode, can inform us of parasitic activity. After properly wet-sieving 25 cc (cubic centimeters) of soil from each sample into tubes, both samples were filled with water in the tubes. The tubes were then placed in a centrifuge at about 3,400 RPM for 6 minutes. What this does is help the separation of soil organisms from particles and tissue. After it was done, the water was decanted from the tubes. Then, sugar solution was added to each tube about a cm from the top, and stirred to break up the soil pellets and bring the nematodes to the surface. The tubes were then placed back into the centrifuge at about 3,400 RPM for 1 minute. By doing this, we were forcing the soil to the bottom of the tube, while bringing the nematodes to the top. Once the second centrifuge was done, the sugar water was decanted through a 500 mesh sieve to hold the nematodes. After, the nematodes were back washed into the tubes and placed into a counting dish. Once prepped, we then placed each of the samples under a microscope to begin counting.  

With Rob’s expertise, we were able to identify 6 varieties of nematodes in each sample, including: free living, lance, stunt, ring, lesion, and Tylenchus. The perennial portion of the garden had substantially more free living, stunt, and Tylenchus nematodes compared to the annual garden soil. The annual garden soil also had lance and ring nematodes, whereas the perennial garden soil had none. Nematodes are not host specific, meaning they can feed on both grasses and woody plants. With that being said, lance, ring, and stunt are typically associated with grasses in high numbers. Lesions on the other hand are not as closely associated with grasses. It is interesting to consider how the Kinney Center soils are host to these nematode numbers when the kitchen garden is made up of primarily herbaceous plants. 

Nematode tables

For perspective, 100 cc of soil equates to less than a half-cup of soil. Although the number seems small in comparison to what we may be used to, this is only representing a small fraction of what is actually inhabiting and thriving within our soils. If we extrapolated these numbers to include the entire garden, we would be witnessing hundreds of thousands of nematodes. To identify an abundance of nematodes in relation to a small area of land, we are witnessing a thriving ecosystem which hosts a variety of microorganisms swarming beneath our feet. 

Why do we look beyond the surface?  

By conducting an extraction, we are able to uncover another world of life living beneath the surface. Although we may not see or feel these organisms, it does not mean they are not there and busy at work. In other words, we are peering into an invisible world which surrounds us. We look beyond the plants to observe the biology we may otherwise ignore because it is not easily tangible. When we take the time to notice microorganisms such as nematodes, we are investing in the health and continuity of our soils. In this action, we are moving toward a deeper understanding of how our food systems function in a cycle, and depend on the health of not only the creatures above, but also below, the surface. 

References: 

“Washington State University.” WSU Tree Fruit | Washington State University, treefruit.wsu.edu/web-article/nematodes/. Accessed 5 Mar. 2025.