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特早熟棉区无霜期短,常在九月下旬至十月初旬就发生枯霜,且开花后期温度低,使铃期较长,霜后花常在50%左右。处在这样的自然条件下,争取棉花增产的关键,就不是着重增多单株结铃数,而是利用早熟品种,实行高度密植,争取单位面积上有更多的伏前桃和伏桃,才能早熟高产。1960年的棉花生产比往年有不同的特点,棉田施基肥量较过去有很大增加,棉田多已在秋冬深耕0.7—1.0尺,高产田达到1.5尺,在土、肥、水都有不同的条件下,合理密植更将是增产的关键措施。
Precocious cotton area frost-free period is short, often in late September to early October withered frost occurs, and the late flowering temperature is low, so that the bell longer, after the bloom often spend about 50%. Under such natural conditions, the key to gaining more cotton output is not to increase the number of bolls per plant, but to use the precocious varieties to practice highly dense planting and strive for more pre-V peach and volts peaches per unit area Early maturity and high yield. Cotton production in 1960 than in previous years have different characteristics, the amount of base fertilizer in the cotton field has greatly increased over the past, the cotton fields have been in the autumn and winter deep plowing 0.7-1.0 feet, high yield field reached 1.5 feet in the soil, fertilizer, water has a different Under the conditions, it will be a key measure to increase production rationally.