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当前位置: 首页 > 文章 > 两种钾肥对湖北棉区棉花养分吸收及经济效益的影响 中国土壤与肥料 2014 (1) 37-41
Position: Home > Articles > Effects of two types of K fertilizers on nutrient uptake and economic benefit of cotton Soil and Fertilizer Sciences in China 2014 (1) 37-41

两种钾肥对湖北棉区棉花养分吸收及经济效益的影响

作  者：
汤帆;齐永波;李春雷;黄青颖;胡红青;夏宝华;黄展林;魏来
单  位：
浙江浙农爱普贸易有限公司;华中农业大学资源与环境学院;国投新疆罗布泊钾盐有限责任公司
关键词：
硫酸钾;硫酸钾镁;棉花;养分吸收;经济效益
摘  要：
通过田间试验研究了钾肥用量(K2O 75、150、225 kg/hm2)与种类对棉花产量、养分吸收及经济效益的影响。结果表明:施硫酸钾与硫酸钾镁都能增加产量,提高养分含量及经济效益,两者相比,在低、中、高3个水平上棉花产量前者比后者分别提高3.5%、3.2%和1.4%;相比硫酸钾镁,施硫酸钾可使棉花对氮、磷的吸收量增加,棉花根的氮含量平均增加13.9%,茎的磷含量平均增加2.7%,但对钾、钙、镁、硫的吸收量影响较少。施用硫酸钾比施用硫酸钾镁所获的效益平均高540元/hm2,且在施K2O 75 kg/hm2处理所获效益最高,比不施钾肥多获效益10 350元/hm2。
译  名：
Effects of two types of K fertilizers on nutrient uptake and economic benefit of cotton
作  者：
TANG Fan;QI Yong-bo;LI Chun-lei;HUANG Qing-ying;HU Hong-qing;XIA Bao-hua;HUANG Zhan-lin;WEI Lai;College of Resource and Environment,Huazhong Agricultural University;SDIC XinjiangLuobupo Potash Co. Ltd;Zhejiang AMP International Co. Ltd;
关键词：
potassium sulfate;;magnesium potassium sulfate;;cotton;;nutrient uptake;;economic benefit
摘  要：
Effects of different K fertilizers and application rates( K 2 O 75,150 and 225 kg / hm2) on cotton yield,nutrient uptake and economic benefit were studied through a field experiment in fluvo-aquic soil. The results showed that cotton yields were significantly increased by application of potassium. Applying potassium sulfate compared with magnesium potassium sulfate,cotton yield increased by 3. 5% in low level,by 3. 2% in middle level,and 1. 4% in high level,respectively. The uptake of nutrient also increased in the treatments of both K fertilizers. However,different fertilizers affected nutrient contents in the plant. Compared to magnesium potassium sulfate,potassium sulfate fertilizer could make an average growth of 13. 9% on accumulation of N in root and an average increase of 2. 7% on accumulation of P in stem,but a reduction of K,Ca,Mg and S. Relatively higher net income were obtained from K treatments in despite of higher input. Treatment of potassium sulfate fertilizer had a higher economic benefit than that of magnesium potassium sulfate,more than 540 yuan / hm2in average. And the treatment of potassium sulfate in 75 kg / hm2level had the maximum growth in economic benefits,10 350 yuan / hm2higher than the no-K fertilized treatment.

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