深松少耕技术对土壤物理性状及玉米产量的影响  

Effects of Subsoiling and Fewer-tillage on Soil Physical Characters and the Yield

作　　者：宫秀杰[1] 钱春荣[1] 于洋[1] 马军韬[1] 肖佳雷[1] 王俊河[1] 

机构地区：[1]黑龙江省农业科学院耕作栽培研究所,黑龙江哈尔滨150086

出　　处：《黑龙江农业科学》2009年第5期32-34,40,共4页Heilongjiang Agricultural Sciences

基　　金：哈尔滨市科技攻关计划项目(2008AA6BN022)

摘　　要：通过对土壤容重、土壤含水量、土壤田间持水量及产量的测定和分析,研究了深松少耕技术对土壤物理性状、水分利用率、土壤蓄水能力及玉米产量的影响。结果表明：深松少耕后,土壤容重在土壤耕层10-40 cm的范围内比对照降低22.1个百分点;土壤含水量在土壤耕层10-30 cm范围内高于对照,差异达显著水平,并在15-25 cm达极显著水平;土壤耕层0-50 cm范围内田间持水量均高于对照,差异达到显著或极显著水平;同时,深松少耕后玉米田增产1 602 kg.hm-2,差异达到显著水平。According to the mensuration and analysis of soil permit heaviness,soil moisture,soil maximum moisture and the yield,the effects of subsoiling and fewer-tillage on soil physical characters,water use efficiency,soil conservation storage competence and maize yield were studied.After the subsoiling and fewer-tillage,the results indicated：soil permit heaviness descend 22.1 percent point than CK in 10～40 cm soil depth;soil moisture higher than CK in 10～30 cm soil depth,the discrepancy attained notable level in 10～30 cm soil depth,the discrepancy attained maximum notable level in 15～25 cm soil depth;soil maximum moisture higher than CK in 0～50 cm soil depth;the yield higher 1 602 kg·hm-2 than CK,the discrepancy attained notable level.

关 键 词：玉米 深松 少耕 土壤物理性状 产量 

分 类 号：S513[农业科学—作物学]