抗虫棉和常规棉都是棉花，而这２年省区试中参试的全是春棉。它对肥水要求等大的方面与油棉３号和中棉１９没有区别，即也要求平衡施肥，及时排灌。唯一不同的是抗虫棉具有抗棉铃虫特性，而其他棉花不具备这种特性。因此栽培管理上，也有所不同。８６３国抗棉品系，播期不宜过 Bt cotton and conventional cotton are cotton, and these two provinces in the test all the spring cotton. It requires a large area such as fertilizer and oil Cotton 3 and Cotton 19 is no different, that is also required to balance fertilization, timely irrigation and drainage. The only difference is that insect-resistant cotton has the anti-bollworm characteristics, while other cotton does not have this feature. Therefore, cultivation and management, but also different. 863 national anti-cotton lines, sowing date should not be too