摘要
以锦丰梨为试材,连续进行3年覆盖试验,设地膜覆盖、秸秆覆盖、地膜+秸秆覆盖以及清耕对照4个处理,研究不同覆盖处理对梨园土壤养分的影响。结果表明,地膜覆盖处理的土壤碱解氮、速效钾、有效性铜含量的年周期变化和年变化均比对照降低,年周期的速效磷、有效性铁、有效性锌和有效性锰含量均比对照升高,但是速效磷和有效性锌含量随着覆盖年限的增加而下降;秸秆覆盖和地膜+秸秆覆盖明显增加了土壤碱解氮、速效磷、速效钾和有效性铜、铁、锌和锰含量,并且随着覆盖时间的延长,影响效果不断提高。综合比较三种处理结果,以秸秆覆盖的效果较好,建议在生产中推广使用。
Jinfeng pear was chosen as the tested material,and four treatments including plastic film mulching,straw mulching,plastic film and straw mulching,and clean tillage（the control） were set. The mulching treatments lasted for 3 years,to investigate the effects of different mulching treatments on soil nutrient of pear orchard. The results showed that the contents of alkaline hydrolytic nitrogen,available potassium and available copper under plastic film mulching in one year and during 3 years were decreased; the contents of available phosphorus,available iron,available zinc and available manganese under plastic film mulching in one year were increased,but the contents of available phosphorus and available zinc were decreased along with mulching years. The contents of alkaline hydrolytic nitrogen,available phosphorus,available potassium,available copper,available iron,available zinc and available manganese were significantly increased under straw mulching,plastic film and straw mulching,and the effect increased continuously along with mulching years. Among the three mulching treatments,straw mulching was the best.Thus,it is suggested that straw mulching can be applied in production of pear orchard.
出处
《浙江农业学报》
CSCD
北大核心
2017年第3期421-427,共7页
Acta Agriculturae Zhejiangensis
基金
中国农业科学院科技创新工程(CAAS-ASTIP)
辽宁省果树产业技术体系栽培技术研究岗位(LNGSCYTX-15-5)
关键词
覆盖
地膜
秸秆
梨园
土壤养分
mulching
plastic film
straw
pear orchard
soil nutrients
作者简介
徐锴（1980-）,男,辽宁本溪人,满族,硕士,助理研究员,从事果树栽培生理研究.E-mail：xukai_308@163.com
通信作者,赵德英,E-mail：zdy8235622@163.com
