干旱地区农业研究Issue(2)：61-65,5.
不同秸秆还田量对旱地土壤水肥和玉米生长与产量的影响
Effect of crop residue incorporation on soil moisture and nutrient and maize growth and yield of arid farmland
摘要
Abstract
Taking Fuxin as the target area ,this paper deals with the effect of crop residue incorporation on soil moisture and nutrient and maize yield of arid farmland ,with five treatments of 0 kg・hm - 2 ,6 000 kg・hm - 2 ,12 000 kg・hm - 2 ,18 000 kg・hm - 2 ,24 000 kg・hm - 2 .We had 3 replications and 15 plots ,each having an area of 60 m2 .Re-sults showed that soil moisture content increased markedly ,saving 5% ~ 45% of water as compared with CK (non residue incorporation) .Soil bulk density varied significantly ,showing a decreasing trend of 12 000 kg・hm - 2 > 6 000 kg・hm - 2 > 18 000 kg・hm - 2 ,especially in the 10 ~ 20 cm depth Leaf chlorophyll content and photosynthetic efficiency were increased by crop residue incorporation ,especially for the rate of 12 000 kg・hm - 2 .Crop residue incorporation showed substantial effect on maize yield ,being positive within the range of 0 ~ 12 000 kg・hm - 2 and suppressing above 18 000 kg・hm - 2 .It is thus recommended that the rate of 12 000 kg・hm - 2 be optimum for maize production in the target area .关键词
秸秆还田/土壤水肥/玉米/生长/产量Key words
cropresidue incorporation/soil moisture and nutrient/maize/growing/yield分类
农业科技引用本文复制引用
钱凤魁,黄毅,董婷婷,孙杰..不同秸秆还田量对旱地土壤水肥和玉米生长与产量的影响[J].干旱地区农业研究,2014,(2):61-65,5.基金项目
公益性行业（农业）科研专项经费项目“东北旱地玉米土、肥、水联合跨季节调控技术体系研究” （）
