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上海郊区早稻面积约160万亩,亩产在650～750斤之间,由于种植的品种单纯,在地多劳少的地区,季节与劳力的矛盾比较突出。为了合理安排品种与茬口,争取早稻产量“稳中求高”。我们在本院试验场进行了早稻品种生产性对比试验。参试品种有澄溪早、浙辐“802”、原丰早(对照)和77—01。播期稍有前后,田间管理均相同。 (一)个体发育:从生育期来看,澄溪早为99天,浙辐“802”102天,分别比原丰早短6天和3天,77—01为108天,比原丰早迟3天(见表)。
The area of early rice in the suburbs of Shanghai is about 1.6 million mu with a yield of 650-750 kg per mu. Due to the simple cultivated species, the contradiction between seasons and labor is prominent in the areas where there are more labors and less land. In order to rationally arrange varieties and stubble crops, fight for the yield of early rice “steadily higher.” We conducted a comparative trial of early rice varieties in our laboratory. Varieties of the trial were Chengxi early, Zhejiang spoke “802”, Haramatch (control) and 77-01. Sowing slightly before and after field management are the same. (A) individual development: from the growth period, Cheng Creek as early as 99 days, Zhejiang spokes “802” 102 days, respectively, compared with the original HSV short 6 days and 3 days, 77-01 for 108 days, 3 days later (see table).