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湖南省洞庭湖区,每年植插晚稻时,正值高温烈日,大田水温常在40℃以上,秧苗插后,秧根不易入泥生长。而叶面蒸腾量很大,往往较长一段时间不能返青,造成本田营养期的不足,对产量影响很大,要缩短晚稻返青期,除了狠抓培育壮秧外,在栽培上还要采取以下五点措施: 一、在插秧前5—6天,视秧苗生长情况,每亩追施尿素3—5斤,促发新根,增强抵抗不良环境条件的能力;同时在插前1—2天,打一
In Dongting Lake area of Hunan Province, rice plants are planted with rice every year when they are hot and sun-prone. Water temperature in the fields is often above 40 ℃. After the seedlings are inserted, the seedlings are not easy to enter the mud. The large amount of leaf transpiration, often for a long time can not rejuvenate, resulting in Honda nutritional deficiencies, a great impact on the yield, to shorten the late rice turning green, in addition to pay close attention to nurturing strong seedlings, but also to take the following cultivation Five measures: First, 5-6 days before transplanting, depending on the growth of seedlings, 3-5 kg per acre topdressing urea, to promote new roots and enhance the ability to resist adverse environmental conditions; at the same time 1-2 days before the plug Hit one