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种植绿肥是增加肥料,改良土壤,提高产量,降低成本的主要措施。同时,充分发挥绿肥的效果,用好绿肥,是其中一个很重要的方面。所谓用好绿肥,就是要掌握绿肥翻压后的变化情况,了解其在不同条件下养分释放的特点,以此来指导下茬作物的施肥措施和其它田间管理措施,达到丰产目的。同时根据绿肥的不同腐解规律,确定不同的利用方式,以充分发挥绿肥的肥效,提高绿肥的利用率。现以冬绿肥苕子和夏绿肥田菁为例说明。腐解情况苕子和田菁都是易于腐解的绿肥作物,它们被翻压后,在微生物的作用下,发生一系列生物物理和化学变化,其腐解速度与绿肥的质
Planting green manure is to increase fertilizers, soil improvement, increase production, reduce the cost of the main measures. At the same time, give full play to the effect of green manure, green manure, is one of the most important aspects. The so-called good use of green manure, is to grasp the pressure change after green manure to understand its characteristics under different conditions of nutrient release, in order to guide the next crop fertilization practices and other field management measures to achieve high yield purposes. At the same time, according to the different decomposing laws of green manure, different utilization ways are determined to give full play to the manure effect of green manure and improve the utilization rate of green manures. Now winter green manure and summer green fertilizer Tian Jing as an example. Decomposition situation prickly ash and Tian Jing are easy to decompose green manure crops, they were turned over, under the action of microorganisms, a series of biophysical and chemical changes, the decomposition rate and green manure quality