摘要
应用土壤养分状况系统研究法测定土壤中11种大、中、微量元素含量,结合土壤对营养元素的吸附研究和盆栽试验,认为菜地土壤中氮、钾、锰是主要的养分限制因子。田间试验补足该养分,能改善茄子的农艺性状,提高茄子产量。
11 elements in Zhengzhou suburb soil were analysed by soil nutrient systematic research method. Absorption studies and pot experiments were supplemented. The limiting factors of nutrient of were found. These results can guide the field trials and fertilizer application. The pot planting results indicated : N, K and Mn were the main nutrient limiting factors. Field trials showed that the reasonable ratio of N:K2O:Mn could increase the yield and improve the quality of eggplant.
出处
《中国农学通报》
CSCD
1999年第1期5-7,共3页
Chinese Agricultural Science Bulletin
基金
中国-加拿大农学(第三期)合作项目
河南省重点科技项目
关键词
系统研究法
土壤养公
平衡施肥
吸附
茄子
Systematic research method Soil nutrient Balanced fertilization Absorption Egg-plant
