地膜颜色和厚度对玉米生长及产量的影响

研究了不同颜色和厚度的塑料薄膜覆盖对玉米生长发育和产量的影响。结果表明,绿洲灌区风沙土覆盖薄膜厚度为0.012 mm时,以覆盖黑色地膜的玉米折合产量最高,为15 583.3kg/hm~2;覆盖白色地膜的折合产量次之,为15 375.0 kg/hm~2;覆盖蓝色地膜时,玉米前期生长较快,但折合产量较覆盖白色地膜下降。且薄膜厚度为0.012 mm时有利于废旧薄膜的回收利用。白色地膜随着厚度的增加,玉米产量呈逐渐增大的趋势,覆盖薄膜厚度超过0.012 mm时,玉米产量反而随薄膜厚度的增加而降低。

Effects of Film Color and Thickness on Corn Growth and Yield

The effects of different color and thickness of plastic film mulch on corn growth and yield were studied. The results showed that when the thickness of Aeolian soil of Oasis Irrigated Area was 0.012 mm, the highest corn yield was the check covered with black plastic film, was 15 583.3 kg/hm2; followed by the covered with white plastic film, was 15 375.0 kg/hm2. When covered with blue film, the early growth of corn was faster, but the yield reduced when the film was covered with white film, and the film thickness was 0.012 mm, which was conducive to the recycling of waste film. With the increase of the thickness of the white mulch, the yield of corn was gradually increased. When the film thickness was more than 0.012 mm, corn yield decreased with the increase of film thickness.