摘要
Abstract
Two experiments on pig manure fertilizer application in combination mode were carried out in Longshan county,Hunan province at the pig farm of Xinwang Breeding Cooperative and Zhenghe village,Nongche town.The swine manure digestate detected in this experiment contained alkaline dissolved nitrogen(ADN)173.6 mg/L,effective phosphorus(EP)28.8 mg/L,and quick-acting potas-sium(QAP)201.9 mg/L.The results showed that:soil nutrients of alkaline dissolved nitrogen(ADN),effective phosphorus(EP),and quick-acting potassium(QAP)detected in the medium group of the oil-tea land test were 99.5,16.8,and 117.9 mg/kg respectively,which were closer to those of soil nutrients in the oil-tea land with the amount of composite fertilizer applied,and that in the tea land test the detected values of alkaline dissolved nitrogen,effective phosphorus and quick-acting potassium in the soil of the low-grade group were 97.0,18.6 and 113.7 mg/kg respectively,which were closer to the soil nutrients of the compound fertilizer application in the tea land.According to the medium group of the oil tea land test,each 667 m2 oil tea land can absorb 14.71 pigs'manure.According to the low level group of tea land test,every 667 square meters of tea land can absorb 14.56 pigs'fecal pollution.The test showed that the combination of planting and raising mode was safe and effective in saving sewage cost,and the utilization rate of manure resources was high.关键词
生猪养殖/沼液/油茶/茶叶/粪污消纳量/种养结合Key words
pigs breeding/pig biogas slurry/oil tea/tea/fecal waste absorption/planting and breeding combination分类
农业科技
