Effects of different plastic film mulching modes on growth and yield of dry land maize | 不同覆膜方式对旱地玉米生长发育和产量的影响
2011
Tang Xiaoming, Gansu Academy of Agricultural Sciences, Lanzhou (China) | Li Shangzhong, Gansu Academy of Agricultural Sciences, Lanzhou (China)
Chinese. 摘 要：针对西北半湿润偏旱区（甘肃镇原）年降水量少、季节分布不均、特别是玉米生产中春旱严重等问题，研究6种不同覆膜方式对旱作玉米出苗率、干物质积累量、株高、叶面积指数、生育时期和产量的影响。结果表明，双垄面全膜覆盖沟播提高了玉米出苗率和出苗速度，提早成熟，整个生育期玉米株高、叶面积指数和干物质积累量始终大于其他处理，增产效果明显，是旱作区进一步挖掘降水潜力和高产田创建的有效途径。
Show more [+] Less [-]English. In order to meet of water requirement of maize at the situation of limited and unevenly distributed rainfall in the semi-humid area of Northwest China （Zhenyuan, Gansu）, especially the problem of serious spring drought during the growing period of maize, the effects of six different film-covering models on dry matter accumulation, plant height, leaf area index, emergence rate of seedlings, growth stages and yield of dry land maize were studied in this experiment. The results showed that the mode of whole covering on double ridges and planting in catchment furrows was effective way to further exploit rainfall productive potential and create high-yield fields to improve rate and growth speed of seedling, advance maturity time, increase plant height, leaf area index and dry matter accumulation, and increase yield in dry farming areas.
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