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| 盐渍化土壤向日葵氮肥施用技术的研究 | |
| 引用本文： | 张喜印,王秀芝,刁立伟,王瑞,陈秀兰,孙毅.盐渍化土壤向日葵氮肥施用技术的研究[J].吉林农业科学,2004,29(6):33-36. |
| 作者姓名： | 张喜印 王秀芝 刁立伟 王瑞 陈秀兰 孙毅 |
| 作者单位： | 1. 吉林省长岭县农业技术推广中心,吉林,长岭,131500 2. 吉林省长岭县蔬菜办公室 3. 吉林省长岭县农业广播电视学校 4. 吉林省农业科学院农业环境与资源研究中心 |
| 摘 要： | 在盐渍化土壤上,向日葵施用氮肥的增产效果十分明显,而且土壤速效氮含量越低,增产效果越显著,增产幅度在28.8％-51.8％,施氮(N)量在85-102 kg／hm2为宜。在施用氮肥的同时,配施磷、钾肥增产作用更加明显,且氮肥总量的1／3底施与2／3现蕾期追施作用最明显。 |
| 关 键 词： | 向日葵 盐渍化土壤 氮肥 施用技术 |
| 文章编号： | 1003-8701(2004)06-0033-04 |
| 修稿时间： | 2004年8月24日 |
Studies on Techniques of Nitrogen Fertilizer Application in Sunflower on Salinized Soil |
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| Abstract: | The yield of sunflower grown on salinized soil was significantly increased by nitrogen fertilizer application. The lower the content of soluble N, the more yield increase was gained, The yield was increased by 28.8 percent to 51.8 percent. The proper nitrogen application amount was 85 to 102 kg per hectare. The yield was more significantly increased by nitrogen fertilizer application combining with phosphate and potash fertilizer. The best effect was gained when 1/3 of total nitrogen fertilizer was applied while sowing and the others applied at the flower bud appearing period. |
| Keywords: | Sunflower Salinized soil Nitrogen fertilizer Application techniques |
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