Effects of Potassium Fertilizer on Quality,Yield and Economic Benefit of Chinese Onion in Plastic Greenhouses(PDF)
《北方园艺》[ISSN:1001-0009/CN:23-1247/S]
- Issue:
- 2014年14期
- Page:
- 169-170
- Research Field:
- Publishing date:
Info
- Title:
- Effects of Potassium Fertilizer on Quality,Yield and Economic Benefit of Chinese Onion in Plastic Greenhouses
- Author(s):
- LI Hong-ying
- Economic Service Center in Tal Town of Datong County,Datong,Qinghai 810199
- Keywords:
- potassium fertilizer; plastic greenhouse cultivation; Chinese onion quality; production; economic benefit
- PACS:
- S 633.1
- DOI:
- -
- Abstract:
- The single factor test on scallions with different amount of potassium application for two consecutive years was made in Tar Wan Village of Tal town in Qinghai Datong.The results showed the effect of potassium fertilizer on plant height was little,reasonable potassium application could improve stalk,single plant weight and cauloid diameter degrees in plastic greenhouse cultivation.The vitamin C content of the stalk increased with the increase of potash amount.The vitamin C content was the highest when the potash amount was 135~270 kg/hm2.The nitrate content was the highest without the potash and decreased with the increased of the potash amount,but there were no significant difference with fertilized scallions.Potassium fertilizer could increase yields and economic benefits,the most appropriate potash application amount of scallions was 90~135 kg/hm2 in Hehuang valley.
Last Update: 2014-08-07