不同栽种、施肥对单季杂交粳稻8优161产量的影响  

EFFECTS OF VARIOUS PLANTING PATTERNS AND NITROGEN FERTILIZER APPLICATION METHODS ON YIELD OF SINGLE-CROPPING HYBRID Japonica RICE var. 8 YOU 161

作　　者：管耀祖[1] 张镇铭[2] 赵建根 葛常青[1] 董文忠 

机构地区：[1]浙江省杭州市种子公司,杭州310020 [2]浙江省杭州市农科所,杭州310008 [3]浙江省余杭市种子管理站,余杭311100 [4]浙江省临安市种子公司,临安311300

出　　处：《上海农业学报》2001年第2期53-56,共4页Acta Agriculturae Shanghai

基　　金：浙江省杭州市科委攻关项目!(编号 :9912 1A0 1)

摘　　要：通过对单季杂交粳稻 8优 16 1不同栽插本数与栽种方式、氮肥用量和施用方法的试验分析 ,初步明确了获得 8优 16 1高产相应的栽插本数和栽种方式、氮肥用量及施用方法。即在中等土壤肥力条件下 ,施纯氮 2 10～ 2 70kg/hm2 ,以采用平促施肥法为最佳 ;其次是两头法 ;在栽插密度为 2 5.0万穴 /hm2 时 ,每穴栽 1本 ,以行株距 2 4 .0cm× 16 .7cm最好 ;30 .0cm× 13.3cm次之。The effects of various planting patterns and nitrogen fertilizer application methods on yield of single cropping hybrid Japonica rice var. 8 you 161 were investigated through experiments carried out in Hangzhou. The results showed that under medium soil fertility the highest grain yields were obtained when 210 and 270 kg/hm 2 of pure nitrogen were applied using the medium stage heavier fertilization method, and the third highest yield was obtained when 270kg N/hm 2 were applied using the early and late stage heavier fertilization method. The best plant density was 250000 plants/hm 2 combining one seedling per hole and planting spacing of 24.0cm×16.7cm, followed by the plant density of 250000 plants/hm 2 combining one seedling per hole and planting spacing of 30.0cm×13.3cm.

关 键 词：杂交粳稻 8优161 栽种方式 施肥量 施肥方法 产量 单季稻 

分 类 号：S511.22[农业科学—作物学] S511.062