| 闫治斌,秦嘉海,陈修斌,侯德民,刘玉环,陈广泉,杨德江.河西走廊蔬菜作物钾肥肥效研究[J].干旱地区农业研究,2008,(1):37~41 |
| 河西走廊蔬菜作物钾肥肥效研究 |
| Efficiency of potassium fertilizer on vegetables in the Hexi Corridor |
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| DOI：10.7606/j.issn.1000-7601.2008.01.07 |
| 中文关键词: 河西走廊 钾肥 适宜用量 |
| 英文关键词:Hexi corridor potassium suitable application |
| 基金项目:河西学院重点科研资助项目（02－A2） |
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| 中文摘要: |
| 经化验分析,2005年河西走廊主要土类速效钾平均含量为K2O 122.31 mg/kg,与1985年土壤普查时的164.83 mg/kg比较,下降了27.05%;经钾肥田间肥效试验研究得出:马铃薯、甜椒、西葫芦、番茄、黄瓜、芹菜、甜菜K2O经济效益最佳施肥量分别为239.70、299.85、296.10、225.00、428.10、119.95、355.51 kg/hm2,K2O最佳施肥量时的理论产量分别为63.45、68.38、75.52、113.53、94.67、90.17、112.48 t/hm2。作物施钾利润是:黄瓜>马铃薯>西葫芦>甜椒>芹菜>番茄>甜菜。 |
| 英文摘要: |
| Testing analysis indicates that the average content of quick-acting K2O in the main soil in Hexi corridor is 122.31 mg/kg. Compare with 164.83 mg/kg at the time of the overall survey of soil in 1985,it has dropped relatively by 27.05%;Test of the potassium field fertilizer efficiency shows that the optimum amount of fertilization for potato,pimento,squash,tomato,cucumber, celery,beet K2O is 239.70,299.85,296.10,225.00,428.10,119.95 and 355.51 kg/hm2 respectively,with which the theoretic output is 63.45,68.38,75.52,113.53,94.67,90.17,112.48 t/hm2 respectively.The profit of potassium application for different crops is: cucumber>potato>squash>pimento>celery>tomato>beet. |
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