Eco-farm: An Acres U.S.A. PrimerThe definitive guide to managing soil fertility, crops, fertilizers, weeds and insects in a non-hazardous environment. |
Contents
Photosynthesis | 3 |
The Forgiveness of Nature | 19 |
The Light Factor | 45 |
Copyright | |
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acid acre activity agriculture amount animals areas bacteria balance become biological body calcium called capacity carbon cause cell chemical colloidal complex compost compounds contain corn cover crop cultivated rows decay deep deficiency depend developed disease effect elements energy enzyme excess fact factors farm farmer feed feet fertility field figure function Germination grass grow growth hand hormone human humus important inches increase insects iron leaves lesson light living magnesium manure materials means microbes minerals moisture molecules nature nitrogen nutrients nutrition organic matter oxygen phosphate phosphorus plant potassium pounds present problem production protein reason release result roots salt seed silage sodium soil soil system soluble structure sulfur supply surface temperature tion toxic trace turn usually weed