摘要
根据大量土壤样品的分析结果及调查资料,研究了陕西省韩城地区花椒园土壤养分状况、施肥结构和变化趋势。结果表明,供试的180个花椒园施肥量和土壤养分含量变异很大。总体上看,土壤有机质、钾素不足;氮素处于中等水平;磷素较为丰富;微量元素锌、硼、钼极度缺乏;营养元素比例失调,肥料利用率偏低,整体肥力水平低。提出优化施肥结构,增施有机肥、钾肥和微肥,提高花椒产量和品质。
According to the analysis results of 180 soil samples, the study has been carried out to investigate the soil nutrient condition, fertilizition structure and developing trend in the production area of prickly ash in Hancheng city in Shaanxi Province. The results showed that the fertilizer application amount and the soil nutrient content in these prickly ash orchard are variant significantly. Generally speaking, the content of soil organic matter and potassium is inadequate; the nitrogen content is in middle level ;the phosphorus is rich; micronutrients, such as zinc, boron and molybdenum are inadequate extremely. The nutrients are unbalanceable, the fertilizer use efficiency is comparatively low, and the soil fertility is generally poor. In order to improve the yield and quality of prickly ash in this area,the application amount of organic fertilizer ,potassium and micronutrient fertilizer must be increased.
出处
《干旱地区农业研究》
CSCD
北大核心
2003年第4期65-67,72,共4页
Agricultural Research in the Arid Areas
基金
陕西"十五"科技攻关项目(200K02-G7-1)
西北农林科技大学专项基金资助项目
关键词
韩城市
花椒园
土壤养分
施肥结构
有机肥
微量元素肥料
钾肥
Chinese prickly ash orchard
soil nutrient condition
fertilizer application structure
fertility improvement
