Category: Land use: Degraded Farmland

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Companion Planting

Similar names: trap cropping, intercropping, plant association 

Companion planting is an agricultural technique wherein various crops are grown close together to enhance growth, control pests, optimise space and boost productivity. While companion planting is associated with small-scale gardening, the general principles can be broadly integrated into large-scale operations. This approach is considered a low-input and ecologically mindful method for pest management. Rooted in traditional ecological knowledge, this technique focuses on creating mutually beneficial relationships between plants. One of the most common examples of companion planting is the Three Sisters, which is a traditional Native American growing practice that includes corn, beans and squash. Each plant serves a specific role that benefits the other crops in various ways.

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Biochar

Similar names: agrichar, biocarbon 

Biochar is charcoal made from organic matter such as wood, plant materials, and manure. The organic matter is heated at high temperatures of between 300-900 ℃, with very little oxygen. Biochar is carbon rich, absorbent and does not break down easily like other soil enhancers, therefore it is able to stay in the soil for long periods of time. Thus, it can reduce the need for frequent application of compost while still promoting healthy crop growth. Biochar is a soil amendment that improves soil health by aerating the soil, as well as retaining moisture and nutrients in the soil. Additionally, due to the low oxygen burning method, carbon is locked into the soil instead of being released back into the environment. The materials used for processing biochar can range from small-scale and simple to more complex and commercial.

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Cover Cropping

Similar names: green manure, living mulch, soil-building crops, catch crops

Cover cropping has been used across the world throughout history. However, as the rise of synthetic herbicides and fertilizers became more popular, the use of cover crops declined. In recent years, concerns over soil health and the desire to reduce chemical inputs has sparked renewed interest in cover crop techniques. Unlike cash crops, cover crops are grown for environmental benefits rather than for profit. Cover crops are typically grown in the off-season following the harvest of a main cash crop. They are typically mowed, incorporated into the soil, or used as mulch. Cover crops offer a wide array of benefits as they help to improve soil health, control erosion, suppress weeds, improve yields, and attract pollinators. There are a large variety of cover crops to choose from, however the choice of cover crop depends on the goal of the grower.

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Regreening Murcia

Restoring degraded farmland

Iris van der Horst and Remko Schouten bought a large part of land together in Murcia, Spain with the intention to restore the health of the land and regreen the area, alongside their team of regreening experts. These experts are Cedrick Gijsbertsen and Lucas Borst.