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广大农民已认识到科学施肥,保护和提高地力的重要性。为了使农作物高产稳产,必须制定出培肥养地的措施,如规定每年每亩耕地有足够的投肥数量,以此作为对农田地力消耗的补偿。有机质在一定条件下要分解成简单的化合物称之为矿化,矿化量占有机质总量的百分比叫矿化率。一般农田土壤有机矿化率为3％左右,若年矿化率按3％计算,每年每亩耕地将要分解掉37.35—99.4公斤的有机质,但年复一年地消耗却是惊人的。在正常条件下,1.5公斤秸秆、
The majority of peasants have realized the importance of scientific fertilization, protection and enhancement of manpower. In order to make crops stable and high yield, we must formulate measures to cultivate fertilizers and raise land. For example, we stipulate that there should be enough fertilizers per mu of cultivated land per year to compensate for the loss of land fertility. Organic matter under certain conditions to be decomposed into simple compounds called mineralization, mineralization accounted for the percentage of total organic matter called the mineralization rate. Organic farmland soil organic mineralization rate of about 3%, if the rate of mineralization by 3%, each mu of arable land per year will decompose 37.35-99.4 kg of organic matter, but consumption is amazing year after year. Under normal conditions, 1.5 kilograms of straw,