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中国科学院士壤队去年与本院有关單位配合研究有机肥料时,对比了各种廐肥养分含量,結果与生产实战经驗正相符合。无論从哪方面的性質来看,猪粪的質量最好。就养分含量来說:猪粪的含氮量为1.56％。到2.96％,比馬粪、牛粪高出数倍,和羊粪相比,虽然含量不相上下,但羊粪的碳氮比值寬(含碳多,含氮少),羊粪中的氮比猪粪放出来的慢。其中以牛粪为最慢。这些慢性肥料,要經过好好的腐熟,才能放出氮素來。猪粪中所含的纖維分解氮与水解性氮都比其他肥料为高。这些成分是从分解纖維、水解蛋白質,胺基酸而来的。这說明猪粪不仅含氮量高,面且速效养分高,很快为作物吸收利用,肥效明显,
Last year, Scholastic Team of the Chinese Academy of Sciences collaborated with relevant institutes to study the organic fertilizers, and compared the nutrient contents of various fertilizers. The results are in line with actual production experience. No matter from which aspect the nature of pig manure best quality. For nutrient content: pig manure nitrogen content of 1.56%. To 2.96%, which is several times higher than that of horse manure and cattle manure. Compared with sheep manure, sheep manure has a wide ratio of carbon to nitrogen (with more carbon and less nitrogen) than sheep manure and nitrogen Slower than pig manure. Among them, cow dung is the slowest. These chronic fertilizers have to be well decomposed to release nitrogen. Pig manure contained in the decomposition of nitrogen and hydrolyzed nitrogen than other fertilizer is high. These ingredients come from the decomposition of fiber, hydrolysis of protein, amino acids. This shows that pig manure is not only high in nitrogen, surface and high available nutrients, and soon absorbed by the crop, fertilizer significantly,