钾肥施用量不同对粳禾205品种产量的影响  

Effect of Different Potassium Application Rate on Yield of Genghe-205

作　　者：李扬 耿文良 张凤杰 LI Yang;GENG Wen-liang;ZHANG Feng-jie(Tongliao Institute of Agriculture and Animal Husbandry/Tongliao Northern Key Laboratory of Rice Breeding,Tongliao,Inner Mongolia 028000,China;Songliao Institute of Agricultural Sciences,Gongzhuling Changchun 136100,China)

机构地区：[1]通辽市农牧科学研究所/通辽市北方水稻育种重点实验室,内蒙古通辽028000 [2]公主岭市松辽农业科学研究所,长春136100

出　　处：《北方水稻》2024年第3期29-31,共3页North Rice

摘　　要：研究钾肥施用量对粳禾205品种产量性状因素与产量的影响。试验结果表明:处理4施纯氮(N)11 kg/667 m^(2)、纯磷(P)7 kg/667 m^(2)、纯钾(K)7 kg/667 m^(2),粳禾205品种有效分蘖率为47.1%,产量最高达620 kg/667 m^(2),居本试验第1位。在氮肥、磷肥施用量同等的条件下,随着钾肥施用量的增加,产量呈现先增加后下降趋势,说明只有科学合理施用钾肥,才能获得有效的产量性状因素及理想产量。The effects of potassium application amount on yield traits and yield of Genghe-205 varieties were studied.The results showed that under treatment 4,when pure nitrogen(N)was 11 kg/667 m^(2),pure phosphorus(P)was 7 kg/667 m^(2) and pure potassium(K)was 7 kg/667 m^(2),the effective tiller rate of Genghe-205 was 23.7%,and the yield was 620 kg/667 m^(2),ranking first in this test site.Under the condition of the same amount of nitrogen fertilizer and phosphate fertilizer,the yield decreased with the increase of the amount of potassium fertilizer,indicating that only scientific and rational application of potassium fertilizer can obtain the effective character factors of yield and ideal yield.

关 键 词：水稻 粳禾205 钾肥 产量 

分 类 号：S143.3[农业科学—肥料学] O62[农业科学—农业基础科学]