促进养分吸收，增强光合作用，提高生物产量和经济系数；
Film - covered can increase effective fertility of soil, advance nutrient absorption, strengthen photosynthesis.
实验结果表明，草炭与制剂可以促进养分的吸收利用与合理分配。
The experimental results show that peat composed of rotton mosses and its preparation can promote the assimilation, utilization and rational distribution of nutrient (N, P and K).
氮肥和钾肥提高结球甘蓝养分元素的吸收数量，促进边叶钙和镁向叶球转移。
Nitrogen and potassium fertilizer enhanced the nutrient uptakes, and the translocation of ca and Mg from side leaves to heads.
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