D

dietetics: The study of food, nutrition, and health, especially when applied to food intake. Understanding dietetics is important for developing balanced and nutritious diets for livestock. Farmers should work with veterinarians and nutritionists to ensure that animal diets promote optimal health and productivity. Implementing proper dietetic practices will enhance the well-being and performance of livestock.

Daucus: The Latin name for the family of plants which includes the carrot. Carrot farmers should be familiar with the Daucus family to understand the characteristics and growth requirements of their crops. Proper soil preparation, irrigation, and pest management are essential for successful carrot cultivation. Knowledge of the Daucus family can also aid in crop rotation and disease prevention.

defoliant: A type of herbicide which makes the leaves fall off plants. Defoliants can be used to manage weeds or prepare crops for harvest. Farmers should use defoliants carefully, following label instructions and safety guidelines. Understanding the impact of defoliants on crops and the environment will help in selecting the right product and application method. Monitoring weather conditions and timing applications can enhance the effectiveness of defoliants.

dockage: The amount deducted from the weight of grain delivered to a grain elevator because of the presence of unwanted material such as weed seeds or chaff. Managing dockage involves implementing proper cleaning and handling practices to reduce the presence of unwanted material. Farmers should use appropriate techniques and equipment to ensure high-quality grain delivery. Understanding the benefits of minimizing dockage will aid in improving grain quality and marketability.

dieldrin: An organochlorine insecticide which kills on contact. It is very persistent and can kill fish, birds, and small mammals when it enters the food chain. It is banned in the European Union. Farmers should avoid using banned substances like dieldrin to prevent environmental contamination and legal issues. Understanding alternative pest control methods will help manage pests effectively while complying with regulations and protecting the environment.

drill coulter: A coulter that makes a furrow for sowing seed. Drill coulters are essential for precision planting, helping to create uniform seed rows and improve crop establishment.

Diamonds disease: Referring to erysipelas, an infectious disease affecting pigs. Managing Diamonds disease involves implementing proper biosecurity measures, vaccination, and regular health monitoring. Farmers should work with veterinarians to develop effective disease management plans and prevent outbreaks. Understanding the signs and symptoms of Diamonds disease will aid in early detection and treatment, ensuring the health and productivity of the herd.

downy: Referring to something such as plumage that is very soft. Downy feathers provide insulation and are important for the survival of young birds.

drainage ditch: A channel to take away rainwater. Drainage ditches are essential for managing water on farmland, preventing waterlogging, and protecting crops.

dry roughage: Dry bulky foodstuffs, e.g., hay or straw. Dry roughage provides essential fiber in the diets of ruminants, aiding in digestion and promoting overall health.