作物研究2019，Vol.33Issue(1)：9-14,6.DOI:10.16848/j.cnki.issn.1001-5280.2019.01.02
耕作模式对夏玉米产量及灌浆特性的影响
Effects of Tillage Models on Yield of Maize and Grouting Characteristics
孟战赢 1李小东 1郭党 1韩卫红1
作者信息
- 1. 洛阳农林科学院, 河南洛阳 471023
- 折叠
摘要
Abstract
Through 4 years (2009-2012) of position experiment, used Zhengdan 958 as experimental material, the effects of subsoiling 40 cm + straw returning ( SSS), continuous deep tillage + straw non-returning ( CT), continuous deep tillage (30-35 cm) + straw returning ( CTS), conventional tillage ( rotary tillage) + straw returning ( CK) on maize yield and agronomic traits were studied. The results showed that: (1) compared with CK, the average increasing rate of SSS was16. 9％, and the average yield of CTS treatment decreased by 11. 6％ compared with CT treatment; (2) SSS treatment was beneficial to increase the filling rate, average filling rate and maximum filling rate in the middle and late stages of bulk maize flour, and ultimately increased 1000-grain weight. CT treatment decreased the filling rate in the middle and late stages, decreased the average filling rate and maximum filling rate, the maximum filling rate appeared earlier and the total days of filling were fewer than that of CTS treatment. The final 1000-grain weight is the smallest; (3) SSS treatment improved soil physical condition and reduced soil R value, which was conducive to maize root penetration, while CT treatment increased soil bulk density by 0-10 cm and 20-30 cm compared with CTS treatment, which was not conducive to maize root growth. Therefore, subsoiling and mulching can improve maize yield, grain filling characteristics, maize late growth and soil physical properties.关键词
玉米/耕作模式/产量/土壤容重Key words
maize/tillage model/yield/soil bulk density分类
农业科技引用本文复制引用
孟战赢,李小东,郭党,韩卫红..耕作模式对夏玉米产量及灌浆特性的影响[J].作物研究,2019,33(1):9-14,6.
