摘要
采用311-A最优设计与田间试验方法,研究了氮、磷、钾施肥用量对马铃薯产量和淀粉含量的影响,建立了宁夏雨养农业区马铃薯产量、淀粉含量与氮、磷、钾施肥用量之间的数学模型。分析了马铃薯产量及淀粉含量试验因子的主效应和互作效应,优选了马铃薯目标产量在30 000 kg/hm^2时最高产量的最佳施肥量组合为氮、磷、钾(kg/hm2):267.3-139.0-82.1,最佳经济施肥用量组合为氮、磷、钾(kg/hm^2):258.6-131.1-71.1;淀粉含量最高时最佳组合氮、磷、钾(kg/hm2):183.9-106.4-87.6。
In this study,the effects of nitrogen,phosphorus and potassium application on yield and starch content of potato plants were investigated by 311-A regression design in rainfed agricultural area in Ningxia province. Mathematic models between yield and starch content and the parameters of nitrogen,phosphorus and potassium amount used were built. Meanwhile,the main factor and interaction factor affected yield and starch content were analyzed. The results showed that the optimum nitrogen,phosphorus and potassium application amount to acquire the highest yield was 267. 3,139. 0 and 82. 1 kg /hm^2,respectively,to acquire the highest economic value was 258. 6,131. 1 and 71. 1 kg/hm^2,respectively,to acquire the highest starch content was 183. 9,106. 4 and 87. 6 kg / hm^2,respectively.
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2016年第3期80-86,共7页
Soil and Fertilizer Sciences in China
基金
宁夏科技支撑计划项目(2011ZYN115
2014ZDN0103)
公益性行业(农业)科研专项经费项目(201503120)
关键词
马铃薯产量
淀粉
311-A设计
主效应
互作效应
yield of potato plants
starch
311-A regression design
main factor
interaction factor
