Weeds are an index of what is wrong — and sometimes what is right — with the soil, or at least with the fertility program. In every field on every farm, there are different soil types, and each has a potential for producing certain weeds, depending on how a farmer works the soil. Fall tillage, […]
Learn sustainable practices for building and maintaining healthy soil. High quality soil requires diverse soil life and microbes, soil organic matter, humus and the right balance of minerals and nutrients.
Most of the legumes important in agriculture are known as nitrogen fixers, but the plants themselves don’t really fix nitrogen from the atmosphere. These legumes can form a mutually beneficial association with rhizobia bacteria that “fix” nitrogen from the air and share it with their host plant.
Natural products such as these generally do not have high N-P-K numbers, but offer a wealth of readily available nutrients to plants in a living soil.
This table shows the means (mass flow, diffusion or interceptive root growth) by which nutrients are taken up through the roots.
Plant tissue testing, as done by most labs, is not as informative as water-soluble soil tests. Tissue tests only test the soluble contents of the cells.
Manures are an excellent source of nitrogen.