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我团农场种植长绒棉已有25年历史,自1976年以来一直保持平均亩产皮棉100斤以上。1980年全团共种长绒棉6600亩,平均亩产皮棉115.6斤,突破了历史最高水平。现就长绒棉丰产栽培技术作如下探讨。一、摸清品种特性,运用相应的栽培技术1971年我团培育和推广了长绒棉新品种混选2号,为零式分枝类型,适宜于密植,生长期短,吐絮集中,霜前花比例高,单株结铃多,丰产潜力大。但它对水肥反应敏感。如果水肥不当,容易导致、“中空”。纤维长、细、白,但拉力较差,衣分较低。我们针对这个品种的特性,采取了相应的栽培措施。第一,适当增加密度。由原来的每亩7000—8000株,增加到10000—12000株,因而增加了亩铃数,实现了群体增产。第二,
Long-staple cotton plantation in our group has 25 years of history, since 1976 has maintained an average of more than 100 pounds per mu lint. In 1980, a total of 6600 mu of long-staple cotton was planted in the entire delegation, with an average of 115.6 kg of mule per mu, breaking the highest level in history. Now on the long staple cotton cultivation techniques for the following discussion. First, to find out the characteristics of varieties, the use of the corresponding cultivation techniques 1971 I regiment to cultivate and promote a new variety of long staple mixed selection 2, a zero-type branch type, suitable for close planting, short growth period, High proportion of flowers, bolls per plant, high yield potential. But it is sensitive to water and fertilizer. If the improper water and fertilizer, easily lead to “hollow.” Fiber length, fine, white, but poor pull, lower clothing points. We aimed at the characteristics of this species, adopted the corresponding cultivation measures. First, the appropriate increase in density. From the original 7000-8000 acres per mu, increased to 10000-12000 strains, thus increasing the number of mu bell, to achieve a population increase. second,