欢迎来到天天文库
浏览记录
ID:9066680
大小:423.00 KB
页数:6页
时间:2018-04-16
《耕作及秸秆还田方式对春玉米产量及土壤理化性状的影响》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、华北农学报·2014,29(3):204-209耕作及秸秆还田方式对春玉米产量及土壤理化性状的影响1,2222222战秀梅,彭靖,李秀龙,李亭亭,韩晓日,宋涛,潘全良(1.农业部植物营养与肥料重点实验室,北京100081;2.沈阳农业大学土地与环境学院,辽宁沈阳110866)摘要:通过进行2年的田间小区定位试验,研究了不同耕作措施及秸秆还田方式对春玉米产量及土壤理化性状的影响。结果表明:各种秸秆还田方式均可显著提高玉米产量;秸秆连年还田方式最有利于改善土壤的物理性质、提高土壤养分和有机质含量,玉米增产幅度最大;秸秆连年还田配施尿
2、素处理及秸秆隔年还田处理在改善土壤理化性质方面没有表现出明显的优势。深翻、深松耕作方式与普通旋耕相比,可显著降低深层土壤容重,提高土壤孔隙度及土壤田间持水量,增加土壤有机质、氮磷钾含量,促进春玉米产量提高。深翻耕作方式在改善土壤理化性质和提高玉米产量方面的效果显著优于深松,并且这种优势在秸秆连年还田条件下达到最大。关键词:耕作方式;深翻;深松;秸秆还田;产量;土壤理化性质中图分类号:S344;S153.01文献标识码:A文章编号:1000-7091(2014)03-0204-06EffectsofTillageandCropRe
3、siduesIncorporationonSpringMaizeYieldandPhysicalandChemicalPropertiesofSoil1,22222ZHANXiu-mei,PENGJing,LIXiu-long,LITing-ting,HANXiao-ri,22SONGTao,PANQuan-liang(1.KeyLaboratoryofPlantNutritionandFertilizer,MinistryofAgriculture,Beijing100081,China;2.CollegeofLandandE
4、nvironmentScience,ShenyangAgriculturalUniversity,Shenyang110161)Abstract:A2-yearlocatedfieldplotexperimentwasconductedtostudytheinfluencesofdifferenttillagemeth-odsandcropresiduesincorporationontheyieldofspringmaizeandphysicalandchemicalpropertiesofsoil.Theresultssho
5、wedthatnomatterunderwhatkindofwayofcropresiduesincorporation,theyieldofmaizewithcropres-iduesincorporationwashigherthanthatofwithout.Itwasbesttoimprovethephysicalpropertiesofsoil,thecon-tentsofsoilnutrientandorganicmatterundercropresiduesincorporationeveryyear,theinc
6、reasingrangofmaizeyieldwashighestofall.Thephysicalandchemicalpropertiesofsoilundercropresiduesincorporationwithureaandcropresiduesincorporationonceeverytwoyearswerenotbetterthanthatofwithoutcropresiduesincorporation.Comparedwiththetillagemethodofnormalplowing,itcande
7、creasethesoilbulkdensityremarkableindeepsoillayer,increasesoilporosity,fieldcapacity,soilorganicmattercontent,N,PandKcontentinthesoil,theyieldofspringmaizeunderthetillagemethodsofsubsoilingandsubsoilingwithmixingthesoilindifferentlayer.Subsoilingwithmixingthesoilindi
8、fferentlayercangetmoregoodeffectsonimprovingsoilphysicalandchemicalpropertiesandmaizeyieldthansubsoilinginaddition,theeffectswouldb
此文档下载收益归作者所有