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本研究表明:蓝膜有提高秧苗N、P、K合量;促进秧苗干重、分蘖数、叶面积、根数增加的效应,随膜色加深效果越显著.80%透光率的蓝膜对提高秧苗素质效果最佳。还研究了不同光强、不同天气下蓝膜透光率的变化,以及蓝膜育秧的地下、地上温度状况.
The results showed that: the blue film can increase the amount of N, P and K in seedlings; the effect of promoting the dry weight, tiller number, leaf area and root number of seedlings increased significantly with the enhancement of color. The blue film with 80% light transmittance has the best effect on improving the quality of the seedling. The light transmittance of blue film under different light intensity and different weather conditions was also studied, as well as the underground and over ground temperature conditions of blue film seedling growing.