摘要
以三江2号为供试材料,研究不同氮肥施用量对水稻植株生长、抗病性、产量及品质的影响。结果表明:植株的叶片、茎鞘和穗的干物重大致上随着施氮量的增加而不断增多,当达到14 kg/667 m2时,干物质积累量略有下降。瘪粒数随施氮量的增加而增多,结实率和实测产量以中氮水平为高。糙米率、精米率和整精米率都不是以最低氮和最高氮水平为最高,而是中氮水平处理最高,水稻外观品质垩白率和垩白度都是低氮水平较低。
Taking Sanjiang No. 2 as entry, the effects of nitrogen fertilizer on plant growth, disease resistance, yield and quality in rice were studied and the results showed that the weights of leaves, stem and sheath and panicle increased with the increase of nitrogen application, but decreased when the nitrogen amount was 14 kg/667 m^2. Shriveled grains increased as the nitrogen amount increased and the kernel-setting rate reached the highest at mediate level of nitrogen amount. Brown rice rate, polished rice rate and head rice rate were the highest at mediate level of nitrogen amount and chalky grain rate and chalkiness degree decreased as the nitrogen amount increased.
出处
《北方水稻》
CAS
2009年第5期16-18,共3页
North Rice
关键词
水稻
氮肥
施用量
产量
品质
Rice
Nitrogen fertilizer
Application amount
Yield
Quality
作者简介
张岩（1978-），男，硕士。
