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在沈阳东陵耕作棕壤上进行了连续大量施用有机物料的试验.3～5年的试验结果表明:1.有效地提高了士壤有机质、全N、腐殖酸总联及胡敏酸碳和富里酸钙的含量,各物料的三年累积残留率为22～37％;2.猪、牛、马粪及草木樨能提高紧结态有机质在重组有机质中的比例,玉米秸秆则提高松结态有机质的比例;3.能较大幅度提高土壤的几种主要酶类的活性;4.改变土壤微团聚体粒级组成。试验还表明,一次大量施用玉米秸秆,其培肥土壤的各种效应可延续到第四年。
A series of experiments were conducted to study the application of organic materials in large quantities on the tilling brown soil in the southeast of Shenyang. The results of 3 to 5 years showed that: 1. Organic matter, total N, humic acid aggregate and humic acid carbon And calcium fulvic acid content, the cumulative residual rate of three years of each material was 22 ~ 37%; 2 pigs, cattle, horse manure and grass mulberry can increase the proportion of tightly bound organic matter in the recombinant organic matter, corn straw increased pine The proportion of organic matter in the soil; 3. It can greatly improve the activity of several major enzymes in soil; 4. Change the composition of soil micro-aggregates. The experiment also showed that a large number of corn stalks, soil fertility of various effects can be extended to the fourth year.