摘要
为了探讨秸秆还田与地膜覆盖对东北稻区土壤改良及水稻增产的效果,选用吉粳88作为试验材料,在覆膜移栽(F)和不覆膜(F0)移栽2种栽培模式下设5组秸秆还田量梯度:0%、20%、40%、60%、100%(S_(0)、S_(1)、S_(2)、S_(3)、S_(4)),探究秸秆还田和地膜覆盖对稻区土壤理化性质及水稻产量的影响。结果显示:在相同秸秆还田量下,覆膜处理土壤容重、p H值均低于不覆膜处理,覆膜处理土壤全氮、有机质(除S_(0)处理)、碱解氮、速效磷、速效钾的含量均高于不覆膜处理;且无论覆膜与否,随着秸秆还田量的增加,土壤容重、p H值均呈先降低再增加的趋势,土壤全氮、有机质(除S_(0)处理)、碱解氮、速效磷、速效钾的含量均呈先增加再降低的趋势。在相同秸秆还田量处理下,与不覆膜相比,地膜覆盖处理提高了籽粒产量;且随还田量的增加,籽粒产量呈先增加后降低的趋势。综上,60%的秸秆还田量与地膜覆盖相结合更能有效地培肥土壤,提高水稻产量。
In order to investigate the effect of straw returning and plastic film mulching on soil improvement and rice yield increase in northeast rice area, Jijing 88 was selected as the test material, and two kinds of cultivation were carried out in film transplanting(F) and non-filming(F0) transplanting. In the model, there are 5 groups of straw returning soil gradients of 0%, 20%, 40%, 60%, 100%(S_(0), S_(1), S_(2), S_(3), S_(4)) to explore the physical and chemical properties of straw returning and plastic film mulching on rice soil and impact of rice yield. The results showed that under the same straw returning amount, the soil bulk density and pH value of F were lower than F0, and the soil was treated with nitrogen, organic matter(except S_(0)), alkali nitrogen and quick-acting. The content of phosphorus and available potassium was higher than F0. Regardless of the film or the amount of straw, the soil bulk density and pH value decreased first and then increased. Soil total nitrogen and organic matter(In addition to S_(0)), the contents of alkaline nitrogen, available phosphorus and available potassium all increased first and then decreased. Compared with F0 and F treatments, grain yield was increased under the same amount of straw returning. Above all, 60% of the straw returning amount combined with the mulching film can effectively fertilize the soil and increase rice yield.
作者
党昆
陈伟
张洪淇
王祥涵
艾佳鑫
王映凯
郑浣彤
王晓航
耿艳秋
金峰
郭丽颖
邵玺文
DANG Kun;CHEN Wei;ZHANG Hongqi;WANG Xianghan;AI Jiaxin;WANG Yingkai;ZHENG Huantong;WANG Xiaohang;GENG Yanqiu;JIN Feng;GUO Liying;SHAO Xiwen(College of Agriculture,Jilin Agricultural University,Changchun 130118;School of Traditional Chinese Medicine,Jilin Agricultural Science and Technology University,Jilin 132101,China)
出处
《东北农业科学》
2021年第4期11-16,共6页
Journal of Northeast Agricultural Sciences
基金
吉林省科技发展计划(20180201037NY)
国家重点研发计划项目(2018YFD0300207-3)
吉林省科技发展计划重点研发项目(20200402004NC)。
关键词
水稻
秸秆还田
地膜覆盖
土壤理化性质
产量
Rice
Straw returning
Plastic film mulching
Physical and chemical properties of soil
Yield
