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金阳县地处边远山区,海拔460～4076米,种植地膜玉米已有多年历史,我们觉得在山区发展地膜玉米要增产增收须做到“七不宜”和“三注意”。一、地处温暖地带,海拔在1700米以下,年平均气温13℃以上,光照条件较好的地方不宜盖膜。这些地方温度高、湿度大,基本能满足玉米生长对温、湿度等条件的要求,盖膜作用不大,效益差。
Jinyang County is located in remote mountainous areas, 460 to 4076 meters above sea level, planting maize has many years of history, we think in the mountainous area to increase the film mulberry corn production to be “seven not appropriate” and “three note.” First, is located in a warm zone, at an elevation of 1700 meters below the annual average temperature above 13 ℃, light conditions better place should not cover the film. These places have high temperature and high humidity, which can basically meet the requirements of corn growth on conditions of temperature and humidity, with little effect of cover film and poor efficiency.