摘要
本文以肥料网点试验无肥区玉米产量为依据,对吉林省旱田土壤的生产能力进行了分析。结果表明:各类土壤无肥区玉米产量平均值从高到低依次为冲积土、黑土、草甸土、黑钙土、白浆土、暗棕壤、淡黑钙土、风沙土。且各类土壤中均有中低产地块。造成中低产土壤的主要因素是土壤养分缺乏,其次是部分土壤存在障碍因素。在其利用上,应抓主要矛盾,有针对性的采取措施,就大部分中低产土壤来说,只要科学施肥,即可显著提高作物产量。
Based on the data from the no-fertilized trial plots in fertilizer experiment network in Jilin, the producivities of soome dryland soils were discussed. The results indicated that the mean yields of maize in no-fertilized plots decreased by the following trend, alluvial soils > black soils > meadow soils > chernozem > bleached albic soils > dark brown soils > light chernozem > sandy soils. All above are composed of lower to medium fertile soils and lacking of nutrients is of main reason of low yields. Therefore, applying fertilizer according to soil condition may increase yields significently. .
出处
《吉林农业大学学报》
CAS
CSCD
1991年第4期48-52,共5页
Journal of Jilin Agricultural University
关键词
土壤
生产能力
吉林
中低产田
medium to lower fertile soils, productivity of soils
