四川近年棉种发芽率低的原因与对策

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近年来棉花种籽发芽率不高,已成为制约棉花生产恢复和发展的重要原因之一。绵阳市1990年统计棉种发芽率为20~70%,一般在40%左右;四川优质棉基地的简阳县棉种发芽率也只在30~50%。影响棉种发芽率的因素有以下几种: In recent years, cotton seed germination rate is not high, has become a constraint cotton production recovery and development of one of the important reasons. Mianyang City in 1990 statistics cotton seed germination rate of 20 to 70%, generally about 40%; Sichuan high-quality cotton base Jianyang cotton seed germination rate is only 30 to 50%. Affect cotton seed germination rate of the following factors:
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