中国农业科学2012，Vol.45Issue(19)：4115-4122,8.DOI:10.3864/j.issn.0578-1752.2012.19.025
不同深耘及施穗肥方式对水稻根系活力、籽粒灌浆及产量的影响
Effects of Different Treatments of Deep Tillage and Panicle Fertilization on Root Activity, Grain-Filling Dynamics and Yield of Rice (Oryza sativa L.)
摘要
Abstract
[ Objective] The effects of deep tillage and panicle fertilization on rice root activity, grain filling dynamics and yield were studied. [Method] A field experiment was carried out in a randomized complete block design with four treatments at top forth leaf stage. The treatments were broadcast-application without deep tillage, broadcast-application with deep tillage, broadcast-application with deep tillage, furrowing and ridging, and deep-application with deep tillage. [Result] Rice yield and the bleeding intensity at the basal internode and neck-panicle node increased significantly in different treatments of deep tillage and panicle fertilization compared with the control. Deep-application with deep tillage showed the greatest positive effect, followed by broadcast-application with deep tillage, furrowing and ridging, and broadcast-application with deep tillage. Maximum grain weight, initial grain filling potential, relatively initial grain filling potential, maximum grain filling rate, and mean grain Filling rate of inferior and superior grains were both increased under the different deep tillage and panicle fertilization patterns. [Conclusion ] At the middle growth stage, deep tillage could increase the vigor of root and sink, improve grain-filling process, and then enhance grain yield of rice grown in sandy loam soil.关键词
水稻/深耘/氮肥/根系活力/籽粒灌浆/产量Key words
rice/deep tillage/nitrogen fertilizer/root activity/grain-filling dynamics/yield引用本文复制引用
张静,张志,杜彦修,李俊周,孙红正,赵全志..不同深耘及施穗肥方式对水稻根系活力、籽粒灌浆及产量的影响[J].中国农业科学,2012,45(19):4115-4122,8.基金项目
国家自然科学基金项目(31271651)、河南省科技创新杰出人才支持计划项目(94200510003)、河南省重大公益性科研项目(091100910100)、河南省高校科技创新团队支持计划项目(2010IRTSTHN005) （31271651）
