Most soils today have decreased natural humus levels and need organic replenishment from additional sources. Organic material is decomposed by microorganisms like bacterial, fungi, algae and earthworms. This process releases nutrients for plants. Improves soil condition and structure, Improves soil water holding capacity, Improves soil nutrient holding capacity, A favourable environment for microorganisms, Provides major and micronutrients, Gradual release of nutrients, Acids from decomposition break insoluble forms of nutrients into soluble, Aids plants with nematode resistance Animal manures are the best source of nutrition and organic matter. Use manure aged at least 30 days or composted.
Manures vary widely in their nutritional status.
Compilation varies due to the animal species, age and condition, feed and mixed litter. Litter enhances manure fertility. Manures also provide most trace elements. Ideally include 2 to 3 pounds of rock phosphate or raw bone meal per 25 pounds of manure. Chicken and sheep - Apply from 12 to 70 pounds per 100 square feet of soil.