氮钾肥用量对水稻新品种混制一号生长及产量的影响

Effects of Nitrogen and Potassium on the Growth and Yield of Hunzhi No.1

采用大田随机区组设计,研究了氮、钾肥用量对"混制一号"生长及产量的影响。结果表明:氮钾肥用量对"混制一号"分蘖发生、株高、第一伸长节间的长度及重量、产量因素及产量均有较大的影响。其中以A2B3处理(375kg/hm2尿素加375kg/hm2氯化钾)的产量最高,达9154.6kg/hm2,较对照A1B1(225kg/hm2尿素加225kg/hm2氯化钾)增产900.5kg/hm2,增产幅度为10.91%。

The quantity of application of nitrogen and potassium was researched to show its effect on the growth and yield of ＂Hunzhi No.1 ＂by using the randomized and grouped design of wide field .The result turns out that： the quantity of application of nitrogen and potassium have important effect on the appearance of the tiller, the height of the plant, the length and the weight of the first section, the factors of production and yield of ＂Hunzhi No.1 ＂. Among them, the highest production is dealt with A2B3 （which is mixed by 375kg/hm^2 urea and 375kg/hm^2 potassium chloride）. The production reaches at 9154.6kg/hm^2, compared with A1B1 （which is mixed by 375kg/hm^2 urea and 375kg/hm^2 potassium chloride）, the production of the former one has increased at 900.5kg/hm^2 and the increasing extent is 10.91%.