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晚稻是左右我社粮食产量的重要一造。但是往往由于晚稻抽穗扬花、灌浆结实期间遭受低温的影响而得不到应有的产量。如1976年晚造抽穗灌浆时遇上早霜,收割前估产增产二百万斤,结果减产五百余万斤;1978年晚造,原来禾势估产可增四百多万斤,但最后只增几十万斤。究其原因,主要是由于低温影响造成结实率和千粒重下降所致。据我们78年晚造对14个生产队35块包选二号的调查,平均结实率是77.7％,千粒重20.05克,结实率和千粒重分别比正常年降低10％和1—2克,产量减少10％以上。因
Late rice is an important part of our food production. However, due to the late heading and flowering of late rice, filling low temperature during grain filling and not get the proper output. For example, in the evening of 1976, there was an early frost in heading and grouting, yielding an estimated yield of 2 million jin before harvesting and a reduction of 500 kilograms in weight. In the evening of 1978, the original yield of Wo was increased by over 4 million kilos, but in the end it was only increased Hundreds of thousand pounds. The reason is mainly due to low temperature caused by the seed setting rate and grain weight decreased due to. According to a survey conducted by us in the late 78s on 35 packages of 14 production teams, the average seed-setting rate was 77.7%, the grain weight was 20.05 grams, and the seed setting rate and grain weight were reduced by 10% and 1-2 g, respectively, from the normal level. The yield was reduced 10% or more. because