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花生残留氮对玉米效益的估计Ｊ．Ｆ．Ｍｃｄｏｎａｇｈ等众所周知．在热带有利条件下，花生从大气中固定大量氮。在８０天的生长期间固氮达８０～１５０ｋｇ／公顷。当花生或其它豆科作物残茬掺合进土壤时，所提供给后作的残留氮估算值变化不一定，一般占施氮总量的２０％...
Estimating the Benefit of Peanut Residual Nitrogen to Corn. F. Mcdonagh so well known. Under tropical conditions, peanuts hold large amounts of nitrogen from the atmosphere. Nitrogen fixation is 80-150 kg / ha during the 80 days of growth. When the peanut or other leguminous crops stubble into the soil, the estimated residual nitrogen supplied to the post-change is not constant, usually accounting for 20% of the total nitrogen ...