华北中部平原麦田土壤供硫水平及施硫肥效果研究

Study on Sulfur Content and Sulfur Fertilizer Application in Wheat Soil in Central North China Plain

通过土壤采集测定和田间试验,研究了华北中部平原区麦田土壤供硫状况和施硫效果。田间试验设计了施硫水平0 kg/hm2、45.0 kg/hm2、67.5 kg/hm2、90.0 kg/hm2和112.5 kg/hm2共5个处理,研究了不同施硫量对小麦产量的影响。结果表明:研究区域麦田土壤供硫水平偏低;在中等地力条件下,随着施硫量的增加,小麦产量呈增加趋势;最适宜施硫量为67.5 kg/hm2。

The sulfur content and different sulfur fertilizer application rates in wheat soil in central North China plain were studied by soil samples test and field experiment.The results showed that the sulfur content was low.The yield of wheat increased with the increasing of sulfur fertilizer application rate in soil of medium fertility.The optimum sulfur application level was 67.5 kg/hm^2.