摘要
通过3年田间试验研究江淮丘陵黄褐土-水稻土地区大蒜施用钾肥的增产效应。结果表明:增施钾肥对大蒜的生长发育有明显的促进作用,3地试验蒜薹的增产幅度分别为102.8%-155.6%、18.2%-32.8%和24.2%-29.1%,平均增产率为122.0%、27.3%和26.7%;蒜头产量提高11.3%-71.1%、38.1%-55.8%和34.9%-42.6%,平均增长39.2%、45.9%和38.1%。增加氮肥用量,蒜薹及蒜头产量也有一定程度的提高。施用钾肥能大幅度提高大蒜产值,每hm2增收3702-7998元,施用钾肥的产投比高达8.23-18.89∶1。
The successive field experiment from 1998 to 2001 was conducted at six sites of Yellow - drab and paddy soil in Jianghuai hilly land to study the response of garlic yield to potassium application. The results shown that, applying potassium could obviously promote the growth of garlic plant, the yield of garlic bolt and clove raised by 102.8 - 155.6% ,18. 2% - 32. 8% and 24.2 -29.1%, and 11.3 -71.1%,38.1 -55.8% and 34.9 -42.6%,with the average rate of growth 122. 0% ,27. 3% and 26. 7% , and 39.2% ,45.9% and 38. 1% respectively at three sites. Increasing nitrogen application rate could improve the yield of garlic bolt and clove in somewhat. The income was increased by 3702 -7998 Yuart/hm^2 and the value cost ratio reached 8.23 - 18.89：1 compared the treatment of potassium application with that of the control.
出处
《安徽农学通报》
2006年第10期98-99,共2页
Anhui Agricultural Science Bulletin
基金
加拿大钾磷肥研究所(PPI/PPIC)中国项目部
安徽省人才基金项目资助
关键词
大蒜
钾肥
增产效应
Garlic
potassium
Yield
Economic benefit
