摘要
在湖南省龙山县新旺养殖合作社猪场、农车镇正河村等地开展2种种养结合模式猪粪污施肥试验。本试验检测的猪粪沼液中含有碱解氮173.6 mg/L、有效磷28.8 mg/L、速效钾201.9 mg/L。结果表明:油茶地试验中等组土壤养分碱解氮、有效磷、速效钾检测值分别为99.5、16.8、117.9 mg/kg,与油茶地复合肥施用量土壤养分较接近,茶叶地试验低等组土壤中碱解氮、有效磷、速效钾检测值分别为97.0、18.6、113.7 mg/kg,与茶叶地复合肥施用量土壤养分较接近。按油茶地试验中等组计算,每667 m2油茶地可消纳14.71头猪粪污。按茶叶地试验低等组计算,每667 m2茶叶地可消纳14.56头猪粪污。试验表明,种养结合模式可以安全有效节约排污成本,便粪污资源化利用率高。
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 potassium(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.
作者
姚华清
YAO Huaqing(Animal Husbandry and Aquatic Affairs Center of Longshan County,Xiangxi 416800,China)
出处
《中国猪业》
2023年第6期161-165,共5页
China Swine Industry
关键词
生猪养殖
沼液
油茶
茶叶
粪污消纳量
种养结合
pigs breeding
pig biogas slurry
oil tea
tea
fecal waste absorption
planting and breeding combination
