[1]李守蕾,杨长刚,李福,等.玉米整秆带状覆盖量对旱地冬小麦土壤水分利用的影响[J].水土保持研究,2016,23(06):122-127.
　LI Shoulei,YANG Changgang,LI Fu,et al.Effects of Whole Maize Straw Mulching Amounts on Soil Water Use of Winter Wheat in Dry Land[J].Research of Soil and Water Conservation,2016,23(06):122-127.
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玉米整秆带状覆盖量对旱地冬小麦土壤水分利用的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 23 期数: 2016年06期 页码: 122-127 栏目: 出版日期: 2016-12-28
Title:
Effects of Whole Maize Straw Mulching Amounts on Soil Water Use of Winter Wheat in Dry Land
作者:
李守蕾1, 杨长刚1, 李福2, 柴守玺1, 宋亚丽1, 李博文1, 常磊1, 韩凡香1, 程宏波3, 尚艳3
1. 甘肃省干旱生境作物学重点实验室 甘肃农业大学 农学院, 兰州 730070;
2. 甘肃省农牧厅, 兰州 730000;
3. 甘肃农业大学 生命科学与技术学院, 兰州 730070
Author(s):
LI Shoulei1, YANG Changgang1, LI Fu2, CHAI Shouxi1, SONG Yali1, LI Bowen1, CHANG Lei1, HAN Fanxiang1, CHENG Hongbo3, SHANG Yan3
1. College of Agronomy, Gansu Agricultural University/Gansu Provincial Key Lab of Arid Land Crop, Lanzhou 730070, China;
2. Gansu Provincial Department of Agriculture and Animal Husbandry, Lanzhou 730000, China;
3. College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
关键词:
整秆带状覆盖; 覆盖量; 土壤水分; 旱地; 冬小麦
Keywords:
whole maize straw mulching; straw mulching amounts; soil moisture; dry land; winter wheat
分类号:
S512.1+1;S152.7
摘要:
为明确西北黄土高原半干旱雨养条件下，玉米整秆带状覆盖适宜的秸秆覆盖量，以露地种植为对照（CK），研究了4种覆盖量（T1：6 750 kg/hm2，T2：9 000 kg/hm2，T3：11 250 kg/hm2，T4：13 500 kg/hm2）对旱地冬小麦土壤水分和产量的影响。结果表明：4种覆盖量较CK显著增产12.1%～23.3%，提高水分利用效率13.4%～26.8%。产量与单位面积穗数呈显著正相关（r=0.937），整秆带状覆盖较CK可显著（除T3）提高单位面积穗数10.4%～19.0%，以T2单位面积穗数最高。全生育期0—200 cm土层平均含水量4种覆盖量均显著高于CK，较CK高0.7～1.0个百分点，以T1土壤水分状况最好。4种覆盖量可显著改善灌浆前0—200 cm土壤墒情，但从灌浆期开始0—90 cm土壤含水量普遍不如CK。4种覆盖量间，以T2全生育期0—60 cm土壤墒情最好，且其增产和提高水分利用效率效果也最显著。
Abstract:
In order to determine the appropriate mulching straw amounts of whole maize straw mulching in a semiarid rainfed area of the Loess Plateau, Northwest China, we studied the effects of four different mulching modes(T1:6 750 kg/hm2, T2:9 000 kg/hm2, T3:11 250 kg/hm2, T4:13 500 kg/hm2) on the soil moisture and winter wheat yield in dryland with the comparison of no muching (CK). The results show that, compared with CK, the wheat yield was increased by 12.1%~23.3% and the water use efficiency was increased by 13.4%~26.8%. The production and number of spike were significantly positive correlated (r=0.937), compared with CK, the mulching whole maize straw can significantly improve the number of spike(in addition to T3), and the number of spike of T2 was highest. In the four mulching modes, the average soil water storage in 0-200 cm layer was significantly higher than that of CK in the whole stages with an increase of 0.7%~1.0%, and the soil moisture condition of T1 was the best. The soil moisture in 0-200 cm layer was obviously improved before filling stage, but the soil moisture in 0-90 cm layer was generally lower from start of filling stage. Among the four mulching modes, the soil moisture of T2 in 0-60 cm layer was the highest in the whole growth period, and the improvement of the production and water use efficiency of T2 was also the most significant.

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备注/Memo

收稿日期:2015-12-15;改回日期:2016-01-22。
基金项目:公益性行业（农业）科研专项资助项目（201303104）；现代农业产业技术体系建设专项资助项目（CARS-3-2-49）；盛彤笙科技创新基金（GSAU-STS-1512）；甘肃省自然基金（145RJZA228）
作者简介:李守蕾(1990-),男,甘肃平川人,硕士研究生,主要从事作物栽培与生态生理研究。E-mail:525357367@qq.com
通讯作者:柴守玺(1962-),男,甘肃会宁人,教授,博士生导师,主要从事小麦栽培育种和生态生理研究。E-mail:sxchai@126.com

更新日期/Last Update: 1900-01-01