end product / manure product / biological and chemical properties / by-products / Mineral products / food/energy source / chemical and biological properties / chemical / kelp products / unaltered mined products / Animal by-products / chemical properties / ammonia gas / organic systems / generic products / food source / chemical analysis / diverse systems / soil chemical properties / harmful chemicals / chemical problems / food / pest management / energy / /
NaturalFeature
California valley / /
Position
farmer / Fertility Management General / observant farmer / /
M. Van Horn Organic Soil & Fertility Management General Principles and Practices Soil Fertility Soil fertility can be defined as a soil‟s capacity to produce. It is a function of soil physical,