摘要
以盐粳22为试验材料,采用小区对比方法,研究不同氮肥施入水平180 kg/hm^(2)(D1)、210 kg/hm^(2)(D2)、240 kg/hm^(2)(D3)、270 kg/hm^(2)(D4)和300 kg/hm^(2)(D5)对盐粳22生长发育及产量的影响。结果表明:D5处理的水稻单位面积茎蘖数最高,D1处理的成穗率最高;D4处理LAI和高效叶面积率最高;D4处理成熟期干物质积累量最高,D1处理收获指数最高;D4处理株高最高(103.5 cm),千粒重最重(25.96 g),盐粳22以施氮量270 kg/hm^(2)产量最佳,获得最高单产为10.22 t/hm^(2),比D1、D2、D3、D5处理分别增产了11.9%、9.0%、3.3%、2.7%。
This experiment takes Yangeng-22 as materials and adopts the plot comparison method to research the effect of nitrogen fertilizer 180 kg/hm^(2)(D1),210 kg/hm^(2)(D2),240 kg/hm^(2)(D3),270 kg/hm^(2)(D4)and 300 kg/hm^(2)(D5)on the growth and yield.The result indicated that total spikelets per unit area was the highest in the D5 treatment,effective panicles was the highest in the D1 treatment,leaf area index and efficient leaf area rate were the highest in the D4 treatment.Dry matter accumulation was the highest in the D4 treatment,and harvest index was the highest in the D1 treatment.Plant height and thousand kernel weight were the highest in the D4 treatment.The highest yield was 10.22 t/hm^(2)under the nitrogenous fertilizer quantity by 270 kg/hm^(2)and the yield increased 11.9%,9.0%,3.3%and 2.7%than treatment D1,D2,D3 and D5.
作者
黄河
吕小红
杜萌
张战
毛艇
隋鑫
HUANG He;LV Xiao-hong;DU Meng;SUI Xin(Liaoning Saline or Alkaline Land Utilization and Research Institute,Panjin,Liaoning 124010)
出处
《辽宁农业科学》
2021年第2期37-40,共4页
Liaoning Agricultural Sciences
基金
国家重点研发计划项目(2018YFD0300300)
辽宁省科学事业公益研究基金项目(20170034)。
关键词
氮肥施入量
盐粳22
水稻
产量
Amount of nitrogen applied
Yangeng-22
Rice
Yield
