WANG Xuemiao,AN Jinqiang,LUO Tianfeng,et al.Effects of Different Drip Irrigation Configurations on Dry Matter Accumulation and Yield of Corn[J].Research of Soil and Water Conservation,2015,22(06):122-125,133.
不同滴灌带配置方式对玉米干物质的积累及产量影响
- Title:
- Effects of Different Drip Irrigation Configurations on Dry Matter Accumulation and Yield of Corn
- Keywords:
- different drip tape configurations; corn; yield
- 分类号:
- S513
- 摘要:
- 在3种不同灌水处理下采用2种不同滴灌带配置方式，对玉米进行灌溉试验研究，旨在探究不同灌水不同滴灌带配置对玉米农田生产力的影响。结果表明，在全生育期内，不同水分处理对玉米叶面积及叶片光合势影响显著，灌水定额为375 m3/hm2时，3行2管的T2处理在拔节期及抽雄期与CK差异显著。灌水定额为450 m3/hm2时，T4的产量最高为17 035.855 kg/hm2，且T4的水分利用效率亦最高，分别高于T1，T2，T3，T5，T6，CK处理46.24%，42.50%，26.20%，26.15%，48.23%，37.89%。由此可知，灌水定额为450 m3/hm2时，3行2管在一定程度上相对于3行3管更利于玉米的生长发育和产量的增加，即灌水定额为450 m3/hm2，铺设方式为3行2管的处理为最优模式。
- Abstract:
- The experiment of corn irrigation is designed for investigating on the impact of diverse irrigation quotas and pipe laying on corn farmland productivity. Two laying ways of drip irrigation pipes with three different irrigation quotas were used. The results show that during the whole growth season, irrigation volume has significant effects on leaf area as well as photosynthetic potential; it also proves that during jointing and tasseling stages, when irrigation quota is 375 m3/hm2, T2 treatment of laying two drip irrigate pipes in three corn lines has significant difference from CK treatment; when the irrigation quota is 450 m3/hm2, the production with T4 treatment peaked at 17 035.855 kg/hm2 and the water use efficiency is the highest, which is 46.24%,42.50%,26.20%,26.15%,48.23% and 26.15% higher than those with T1, T2, T3, T5, T6 and CK treatements. Therefore, laying two irrigation pipes in three corn lines has greater advantage for corn growth and yield increase than laying three irrigation pipes. That is to say when irrigation quota is 450 m3/hm2, laying two pipes in three lines is the optimal model.
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备注/Memo
收稿日期:2014-11-22;改回日期:2014-12-23。
基金项目:国家自然科学资助项目“滴灌条件下土壤—地膜—玉米—大气系统水分传输机制与模拟”（51169001）
作者简介:王雪苗(1989-),女,甘肃金昌人,硕士研究生,主要从事节水灌溉研究。E-mail:909849205@qq.com
通讯作者:安进强(1971-),男,甘肃通渭人,副教授,硕士生导师,主要从事农业灌溉自动化研究。E-mail:anjq@gsau.edu.cn