超级稻品种氮肥施用量研究

Study on the Rate of Nitrogen Application on Super Rice

对通禾836和吉粳88号两个超级稻品种在不同年份、不同氮肥施肥量进行试验研究,结果表明:在吉林省吉粳88号在低氮条件下产量不高,氮施用量为225 kg/hm2时达到最高产量,属高氮高效型。通禾836不论高氮和低氮产量都比较高,氮施用量为200 kg/hm2时达到最高产量,属氮高效利用型。而且不同年份间通禾836表现更稳产。

The different years and nitrogen fertilizer were researched on Tonghe836 and Jijing88,the results indicated that Jijing88 which belong to NUE type under high-nitrogen condition can achieve the high yield under the condition of 225 kg/hm2（nitrogen fertilizer）.When the nitrogen fertilizer was 200 kg/hm2,the Tonghe836 can reach highest yield.Tonghe836 has stable yield on diversity of years.