摘要
研究了N、P、K化肥配合施用对水稻效应的影响 ,结果表明 :在本试验条件下 ,水稻N肥的用量范围为90～ 12 0kg/hm2 ,经济效益最好 ,最高用量不得超过 180kg/hm2 。缺素施肥区水稻产量呈NK >NP >PK 。
The effects of mixed application of N, P, K chemical fertilizers on rice were studied. The results showed that: under the condition of the experiment, when the dose of N in rice was 90～120kg/hm 2, the economical benefit was the best, The highest dose of N was lower than 180kg/hm 2. The trend of production of rice was: NK>NP>PK in the area where fertilizers were applied according to the shortage of nutrients. The investment benefit of chemical fertilizers was with relation to the fertilizer kinds and dose.
出处
《江西农业大学学报》
CAS
CSCD
2002年第2期193-195,共3页
Acta Agriculturae Universitatis Jiangxiensis
基金
江西省科技攻关资助项目
