学术
河西走廊蔬菜作物钾肥肥效研究
闫治斌[1] 秦嘉海[2] 陈修斌[3] 侯德民[4] 刘玉环[3] 陈广泉[2] 杨德江[3]
[1]甘肃省敦煌种业股份有限公司玉门市种子公司,甘肃玉门735211 [2]河西学院农科系,甘肃张掖734000 [3]河西学院园艺系,甘肃张掖734000 [4]张掖市土壤肥料工作站,甘肃张掖734000
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 122．31mg／kg，与1985年土壤普查时的164．83mg／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K20经济效益最佳施肥量分别为239．70、299．85、296．10、225．00、428．10、119．95、355．51kg／hm^2，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、112．48t／hm2。作物施钾利润是：黄瓜〉马铃薯〉西葫芦〉甜椒〉芹菜〉番茄〉甜菜。[著者文摘]
文章出处:
《干旱地区农业研究》-2008年26卷1期 -37-41页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1000-7601（2008）01-0037-05
Efficiency of potassium fertilizer on vegetables in the Hexi Corridor
YAN Zhi-bin, QIN Jia-hai, CHEN Xiu-bin, HOU De-min, LIU Yu-huan, CHEN Guang-quan, YANG De-jiang （1. Gansu Province Dun the BHght Kind Trade Inc Jade Seed Company＇s, Yumen, Gansu 735211; 2. The Agricultural Department of West Institute of River, Zhangye, Gansu 734000; 3. The Department of Horticulture of West Institute of River, Zhangye, Gansu 734000; 4. Soil and Fertilizer Work Station of Zhangye , Zhangye , Gansu 734000, China ）
Abstract:
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/hm^2 respectively, with which the theoretic output is 63.45, 68.38, 75.52, 113.53, 94.67, 90.17, 112.48 t/hm^2 respectively. The profit of potassium application for different crops is： cucumber 〉 potato 〉 squash 〉 pimento 〉 celery 〉 tomato 〉 beet.[著者文摘]
Key words:
Hexi corridor; potassium ; suitable application
基金资助:
河西学院重点科研资助项目（02-A2）
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