摘要
研究了施用沼渣对桃树生长发育及土壤肥力的影响。结果表明:施用沼渣对桃树生长有显著的促进作用,适宜用量的沼渣作基肥(分别含沼渣20%和14%的土壤)时桃树叶片面积分别较未施肥处理增加25.8%和19.6%,显著高于复混肥;主干直径分别较未施肥处理增加了38.9%和50.0%,显著高于复混肥;侧枝直径分别较未施肥处理增加了31.4%和29.4%,显著高于复混肥。沼渣施用对土壤肥力有显著改善,沼渣含量为20%和14%时有机质分别较未施肥处理增加18.7%和11.6%;总氮分别较未施肥处理增加37.9%和56.8%;总磷分别较未施肥处理增加31.9%和41.6%。
The effects of biogas residue on the growth of peach trees and soil fertility were investigated. The results showed that using biogas residue significantly promoted the growth of peach trees. Compared with blank control,by using basic fertilizer with 20% and 14% of biogas residue, the leaf area of peach tree increased by 25.8 % and 19.6%, trunk diameter increased by 38. 9 and 50.0 %, collateral diameter increased by 31.4.% and 29. 4%, respectively, which all were significantly higher than compound fertilizer. Biogas residue improved soil fertility as well. Compared with blank control, 20% and 14% of biogas residue made organic matter increased 18. 7% and 11. 6%, total nitrogen increased 35. 9% and 30. 6%, and total phosphorus increased 31.9 % and 41.6 %, respectively.
出处
《上海交通大学学报（农业科学版）》
2012年第3期49-52,64,共5页
Journal of Shanghai Jiaotong University(Agricultural Science)
基金
农业部公益性行业(农业)科研专项(200903056)
上海市重大科技攻关项目(08DZ1900405)
上海崇明科技攻关专项(10DZ1960103)
关键词
沼渣
桃树
生长发育
土壤肥力
biogas residue
peach trees
growth
soil fertility.
