The root system development ability of cotton with different cultivation way is analyzed.
研究了不同耕作方式棉花根系的发育能力。
Boron gave stronger root system than calcium, but calcium was better for whole plant development.
硼对苹果苗根系影响明显强于钙，而对整株发育则小于钙的作用。
Boron gave stronger root system than calcium, but calcium was better for whole plant development.
硼对苹果苗根系影响明显强于钙，而对整株发育则小于钙的作用。
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