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宜都县姚店区太堡村二组刘树远一家六口人,1984年建了两口“三结合”的沼气池,每年养猪八头以上。利用人畜粪便产沼气满足全家的生活用能,两口沼气池的沼肥用作1.5亩柑桔的“还阳肥”、越冬肥、保果肥,沼肥水作柑桔的追肥。从1985年5月开始,每月施一次沼肥水,在干旱高温季节每月施两次沼肥水抗旱保墒。由于沼肥所含养分齐全速效,保证了柑桔生长所需养分,柑桔生长快,一年拉架子,两年结果子,三年突破二千公斤的高产效益,超过了柑桔“矮、密、早栽培法”的产量。1987年5月调查柑桔树的长势,施用沼肥的柑桔树高普通达到1.45米,树冠1米以上,在同样的土质条件下同时栽培的柑桔,由于未施沼肥,柑桔高不到1米,且枝少叶黄。1987年6月刘树远两口沼气池的沼渣肥施壮果肥360株,每株施50公斤。另有280株施尿素,每株施0.25公斤,共施35公斤。1987年8门中旬调查,施沼渣肥的360株平均结果39.6个,最多的94个,测产亩产2065公斤。施尿素的280株平均结果10.4个,测产只有560公斤。施沼肥比施尿素增产三倍。
Yao County, Yidu County, Castle Peak two groups Liu Shuyuan a family of six people, in 1984 built two “three combined” digesters, raising more than eight heads each year. Use of human and animal manure to produce biogas to meet the life of the family, two biogas digesters for 1.5 acres of citrus, “also Yang fertilizer,” winter fertilizer, fruit fertilizer, marsh fertilizer for citrus topdressing. From May 1985 onwards, a biogas fertilizer once a month, twice a month in the hot and humid season of biogas water drought and soil moisture. Because of the complete and quick nutrient contained in the biogas fertilizer, the nutrients required for the growth of the citrus are guaranteed. The citrus grows fast. The product of the two-year pull-off and the fruit of two years breaks through the yield of two thousand kilograms in three years, Dense, early cultivation method "output. May 1987 investigation citrus tree growth, the application of marsh manure citrus high common 1.45 m, 1 m above the crown, under the same soil conditions simultaneously cultivated citrus, because no marsh manure, citrus high Less than 1 meter, and less yellow leaves. June 1987 Liu Shuyuan biogas digester residue fertilizers applied fertilizer 360 plants, each plant applied 50 kg. Another 280 urea plants, 0.25 kg per plant, a total of 35 kg. In mid-1987, a survey of 8 villages with biogas residue fertilizer showed that the average output of 360 plants was 39.6, with a maximum of 94 and a measured output of 2065 kg per mu. Urea 280 average of 10.4 results, measuring only 560 kg. Biogas fertilizer than urea three times.