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晚稻搁田,能达到控上促下,抑制无效分蘖、提高成穗率等效果。因此,要注意以下两点: 一、要根据“三看”搁田 一看品种 当杂交晚稻每亩总苗数达到20～23万苗,晚粳稻每亩总苗数达到35万苗左右。晚糯稻每亩总苗数达到35～40万苗时,就应及时排水搁田,以抑制无效分蘖。 二看土肥水对土层深厚、肥料足、地下水位高、水源充足的田块,应早搁重搁;土层浅薄、肥料少、水源差的田块,应适当迟搁轻搁;对土质粘重,排水不良的
Late rice set Tian, can be controlled on the promotion, inhibition of ineffective tillering, increase the rate of formation of spike and other effects. Therefore, we should pay attention to the following two points: First, according to the “three see” a field to see a variety of rice when the hybrid seedlings per acre total number of seedlings reached 20 to 23 million seedlings, the late rice per acre total seedlings reached 35 million seedlings. Late glutinous rice, the total number of seedlings per acre reached 35 to 40 million seedlings, it should drain drained fields in order to suppress ineffective tillers. Second, look at soil fertile soil deep soil, fertilizer foot, groundwater level is high, adequate water fields should be shelved as soon as possible; soil shallow, less fertilizer, poor water plots, should be delayed light shelve; Sticky, poor drainage