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1982年,我场科研站进行了单季晚粳秧田不同播种量试验,考察稀播壮秧的成育过程和本田的增产效应,以寻求秧田播量的适宜范围。材料和方法供试品种:中熟晚粳前选74—4。试验设每亩播种量40、80、120、16O斤四级,分别用1、2、3、4表示。秧田小区1.45m×21m(0.046亩);本田按1:8的相同秧比移栽,重复四次,共16小区,面积9m×6.52m(0.088亩),随机排列。5月16月播种,19日出苗,一叶一心和二叶一心期各亩施尿素15斤。秧龄33天,这期间考查了秧苗成秧率、叶龄、株高、叶面
In 1982, my field research station conducted a single season late japonica rice seedling sowing experiments to study the growing process of seedling thinning and Honda yield-increasing effect in order to find the appropriate range of seedling sowing. MATERIALS AND METHODS Varieties for test: medium late japonica rice pre-selection 74-4. Test set per acre sowing 40,80,120,16 O kg four, respectively, said 1,2,3,4. Seedling plot 1.45m × 21m (0.046 acres); Honda by the same seedling ratio of 1: 8 transplanting, repeated four times, a total of 16 plots, an area of 9m × 6.52m (0.088 acres), randomly arranged. May 16 sowing, on the 19th seedlings, one leaf and one leaf and one heart of each mu urea 15 pounds. Seedling age 33 days, during this period examining the seedling into seedling rate, leaf age, plant height, foliage