| 摘要: |
| 在陕西省东部灌区土娄土上，通过田间试验研究了陕354冬小麦高产的氮、磷、钾肥合理施用量、氮肥适宜施用时期及有机无机烃配合比例。结果表明，在该试验条件下，氮、磷、钾肥对陕354冬小麦均有不同的增产作用，其增产效果为氮＞磷＞钾；最佳施肥量为N 260～280 kg/hm2，P2O5 241～326 kg/hm2,K2O 186～224 kg/hm2；氮肥基追比例1∶1，较全施基肥增产约7％，较全施追肥增产约14％；有机无机氮配合比例1∶1～1∶3，比单施无机氮增产约6％，比单施有机氮增产约17％。 |
| 关键词: 陕西省东灌区 高产施肥技术 冬小麦 |
| DOI： |
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| 基金项目:陕西省农业办公室资助项目 |
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| Study into fertilizer application techniques for high yield of Shaan 354 winter wheat variety |
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| Abstract: |
| Experiment was carried out in the east area of Shaanxi to study fertilizer application techniques for high yield of winter wheat Shaan354 by field plot.The results showed that N,P,K application could raise wheat Shaan354 yield,yield increase efficiency was N＞P＞K,the optimum application fertilizer amout was N 260-280 kg/hm2,P2O5 241-326 kg/hm2,K2 186-224 kg/hm2,the optimum ratio of fertillzer base to top dress was 1∶1,the suitable time for top dress of N is at winter irrigation,elongation period with 25% of total N respectively;the optimum ratio of organic N to the inorganic N is 1∶1 to 1∶3. |
| Key words: the east irrigated region of Shaaxi province fertilizer application techniques for high yield winter wheat |
