available nitrogen in the soil. its ability to fix nitrogen (increasing n in the soil) and its use as animal feed improves the efficiency of agriculture. considered the queen of legumes, it requires high temperatures and dry weather in summer, with spain and argentina being two of the world's best places...
way around where one plant can be detrimental to anothers growth. scientists scoff at the the gardener that practises allelopathy and say that we are wasting our time. however they are quick to mention scientific marvels like the downwind tannin response in acacia spp when grazed by herbivores. think of...