什么样的棉花种子才算是好的棉花种子呢?棉花种子在选用时应遵循怎样的原则?以下几点供参考。一要选择经省级以上农作物品种审定委员会审定的品种。二要看清审定品种编号和界定的种植范围。三要看品种是否有生产许可证、经营许可证、检疫证。四常规抗虫棉原种纯度要达98%以上,杂交抗虫棉F_1的纯度要达95%以上,尽量选用杂交F_1,不用 What kind of cotton seed is considered a good cotton seed? Cotton seeds in the selection of what principles should be followed? The following points for reference. First, select the varieties approved by the provincial crop varieties approval committee. Second, we must identify the validated species number and the definition of planting range. Three to see if there are varieties of production licenses, business licenses, quarantine certificates. Purity of the four conventional cotton varieties to be more than 98%, the purity of hybrid insect-resistant cotton F_1 95% or more, try to use hybrid F1, do not have