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储铃期批棉花个体健壮生育和群体协调生长,大量开花结铃,增铃数增铃重的关键时期。抓住这一阶段棉花的生育特点,加强肥水管理,对提高棉花产量具有十分重要意义。现就有关试验材料,谈谈自己的看法。 (一)棉株生育物点棉花现蕾开花期第一个特点是干物质大量累积。1976～1977年测定棉花蕾期(现蕾～开花)干物质累积量占一生的15.8～20.5％;花期(开花～盛花)干物质累积量占一生的61.8～67.5％。正常棉田花期茎叶干重累积量和蕾铃干重累积量的比值为7～
Cotton bolls period approved the healthy growth of cotton individuals and groups coordinated growth, a large number of flowering bell, boll number boll weight critical period. Grasping the characteristics of cotton at this stage and strengthening the management of fertilizer and water are of great significance to the improvement of cotton yield. Now on the test materials, talk about their own views. (A) Cotton Planting Point cotton budding flowering period is characterized by a large accumulation of dry matter. From 1976 to 1977, the dry matter accumulation in cotton buds (budding ~ flowering) was measured from 15.8% to 20.5% of the total, and the dry matter accumulation from flowering to full flowering accounted for 61.8% to 67.5% of the lifetime. The normal cotton field flowering stems and leaf dry weight cumulant cumulative weight ratio of 7 ~