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在多年试验和大田制种基础上,总结了Ⅱ优D069高产制种的父母本播差期安排、肥水管理和病虫防治、适时适量喷施“九二○”技术及提高杂交种质量的去杂保纯技术。
Based on many years’ experiments and field seed production, the paper summarized the breeding schedule, fertilizer management and pest control of the parents with high yielding seed production of Ⅱ You D069, timely spraying the “Ninety-two” technology and improving the hybrid quality To the miscellaneous pure technology.