|
|||||
|
|
| 辽西地区秸秆覆盖微集水技术对玉米产量及光合特性的影响 | |
| 引用本文： | 李玉华,王慧新,颜景波,司洪华.辽西地区秸秆覆盖微集水技术对玉米产量及光合特性的影响[J].河北农业科学,2009,13(1):1-2. |
| 作者姓名： | 李玉华 王慧新 颜景波 司洪华 |
| 作者单位： | 1. 辽宁省凌源市北街农业技术推广站,辽宁 凌源,122500 2. 辽宁省风沙地改良利用研究所,辽宁 阜新,123000 3. 辽宁东亚种业有限公司,辽宁 沈阳,110161 |
| 摘 要： | 辽西地区生态环境脆弱，耕作方式滞后，平均年降水量少且变率大。秸秆覆盖微集水技术是解决风沙半干旱区粮食产量不稳和土壤易干、易旱的有效途径。试验结果表明，秸秆覆盖量7500kg／hm^2处理的玉米穗粗和百粒重高于另外2个处理及对照。3个处理的产量均高于对照，其中，7500kg／hm^2处理的玉米产量最高。3个处理与对照的7月29日光合速率均比8月27日高，而蒸腾速率均比8月27日低。秸秆覆盖量7500kg／hm^2处理和11250kg／hm^2处理2个时期的光合速率均高于3750kg／hm^2处理和对照，而蒸腾速率均低于3750kg／hm^2处理和对照。 |
| 关 键 词： | 风沙地 秸秆覆盖 玉米 产量 光合特性 |
Effects of the Technique of Micro Water Harvesting by Straw Mulch on Corn Yield and Photosynthetic Characteristics in Western Liaoning |
|
| LI Yu-hua,WANG Hui-xin,YAN Jing-bo,SI Hong-Hua.Effects of the Technique of Micro Water Harvesting by Straw Mulch on Corn Yield and Photosynthetic Characteristics in Western Liaoning[J].Journal of Hebei Agricultural Sciences,2009,13(1):1-2. | |
| Authors: | LI Yu-hua WANG Hui-xin YAN Jing-bo SI Hong-Hua |
| Institution: | 1.Liaoning Agriculture Technical Extension Centre;Lingyuan 122500;China;2.Liaoning Institute of Wind Sandy Land Improvement and Utilization;Fuxin 123000;3.Liaoning Dongya Seed Limited Company;Shenyang 110161;China |
| Abstract: | In western Liaoning,the ecological environment was fragile,the tillage methods were backward and average annual precipitation was little and unstable.The technique of micro water harvesting by straw mulch was an effective way,which could solve the unstable grain yield and drought soil in send-arid region.The experiment results showed that the ear diameter and 100-seed weight with straw mulch of 7 500 kg/hm2were the best.The yield with the each treatment was higher than CK.The yield with straw mulch of 7 500... |
| Keywords: | Wind sandy land Straw mulch Corn Yield Photosynthetic characteristics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |