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一、提出本试验的依据和研究目的:我区近几年来,晚粳秧田播种量一般每亩150斤以上,多的达300～400斤。本田每亩用种量一般30斤,多的40～50斤。造成晚稻产量不稳不高,成熟季节推迟和种子用量多,浪费了粮食,增加了成本。为此,地区农科所1977年进行了晚粳“希播育壮秧,减少用种量”的试验研究。
First, the basis for this test and the purpose of the study: In recent years in our district, the seeding rate of late japonica seedling is more than 150 kg per mu and more than 300 ~ 400 jin more. Honda species generally use 30 kg per mu, more than 40 to 50 pounds. Resulting in unsmooth yield of late rice, postpone mature season and the amount of seeds, waste of food, increased costs. To this end, the Regional Agricultural Institute in 1977 conducted a late japonica “Xi sowing strong seedlings, reducing the amount of” experimental study.