Category: D

dry matter intake: The amount of feed that an animal consumes or requires, discounting its water content. Abbr DMI. Understanding dry matter intake helps farmers ensure their animals receive the necessary nutrients for growth and production.

drift: To float in the air onto areas that are not to be sprayed. Drift can lead to unintended exposure of crops or areas to pesticides or fertilizers, which can be harmful. Farmers should use techniques to minimize drift, such as proper nozzle selection and application methods.

derris: A powdered insecticide extracted from the root of a tropical plant, used against fleas, lice, and aphids. Rotenone. Farmers should use derris carefully, following label instructions and safety guidelines, to manage pests effectively. Understanding the impact of derris on crops, livestock, and the environment will help in selecting the right product and application method. Monitoring pest populations and integrating other control methods can enhance pest management.

disinfectant footbath: A disinfectant solution through which animals, e.g., cattle, have to walk to clean their feet and to remove diseases such as foot rot. Using disinfectant footbaths is important for maintaining hoof health and preventing disease in livestock. Farmers should ensure proper construction, maintenance, and use of footbaths for effective disinfection. Understanding the benefits and applications of disinfectant footbaths will aid in maintaining a healthy and productive herd.

dissolution: The process of dissolving or breaking down. Proper management of dissolution processes is important for maintaining soil health and preventing pollution. Farmers should implement practices like crop rotation, organic amendments, and proper waste management to enhance dissolution and nutrient cycling. Understanding the factors contributing to dissolution will aid in developing effective management strategies.

dandelion: A yellow weed (Taraxacum officinale) found in grassland and also sometimes eaten as salad. While often considered a weed, dandelions have culinary and medicinal uses. Farmers can harvest dandelions for sale in niche markets or for personal use. Additionally, understanding weed management practices can help maintain pasture and crop health, ensuring optimal growth conditions for desired plants.

distribution: The spreading of something over an area. Proper distribution of seeds, fertilizer, or pesticides is important for achieving uniform application and optimal results. Farmers should use appropriate equipment and techniques for effective distribution. Understanding the benefits and applications of distribution will aid in effective crop and soil management.

downy mildew: A disease (Peronospora brassica) that causes white bloom on the undersurface of leaves, most damaging to Brassica seedlings. Managing downy mildew involves using resistant plant varieties, practicing crop rotation, and applying appropriate fungicides.

Down breeds: Breeds of short-wooled sheep, giving wool of a creamy colour; the sheep have dark faces and legs and are hornless. They are found in hilly areas and include the Southdown, Hampshire Down, Dorset Down, and Suffolk. Down breeds are prized for their meat and wool production.

denude: To make land or rock bare by cutting down trees and other plants or by erosion. The timber companies have denuded the mountains. Farmers should implement sustainable land management practices to prevent denudation and maintain soil health. Practices like reforestation, agroforestry, and erosion control can help mitigate the effects of denudation. Understanding the environmental and economic impacts of denudation will aid in developing sustainable farming systems.