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有机肥料有四、五十种之多,我省以厩肥、堆沤肥、绿肥、人粪尿和城市生活垃圾为五大支柱,另有地方性有机肥如草炭、海肥和塘泥等.有机肥的肥分比化肥的肥分低得多,无土厩、堆、沤肥中有机质在20～25%之间,其中含氮0.5%～0.7%,磷酸0.25%,氧化钾0.75%.素有“细肥”之称的人粪尿,含氮量也只有0.8～1.0%.如把上述粪肥制成土粪,有效成分就更低,据分析,有机质含量在2～20%之间.田间试验证实,每千斤土粪肥效低的仅增产粮谷12斤,高的可达92斤.
There are four kinds of organic fertilizers, as many as fifty, the province to manure, piles of fertilizer, green manure, human waste and municipal solid waste as the five pillars, and another local organic fertilizer such as peat, sea manure and pond mud, etc .. Organic fertilizer Of fertilizer is much lower than the fertilizer fertilizer, no soil, stable, heap fat organic matter in the 20 ~ 25%, of which nitrogen 0.5% ~ 0.7%, 0.25% phosphoric acid, potassium oxide 0.75% Fine manure, "the human excrement, nitrogen content of only 0.8 to 1.0%. If the manure made from the above manure, the lower the effective ingredient, according to analysis, the organic matter content of 2 to 20%. Field test Confirmed that only a small increase in grain yield per kilogram of soil manure 12 pounds, up to 92 pounds high.