摘要
在淮北砂姜黑土地区进行小麦钾肥用量的研究结果表明,施用钾肥有明显的增产作用,除千粒重和谷草比外,其他生物学性状都明显好于不施钾对照;小麦钾素营养吸收的差异主要表现于茎叶;农田钾素的盈余随钾肥用量增加而呈上升趋势。淮北砂姜黑土地区小麦施钾量适宜范围应控制在K2O40~80kg/hm2,建议施钾量K2O40kg/hm2。
The field experiment of wheat applying potassium fertilizer was carried out in Huaibei shajiang black soil area The results of research showed that application potassium fertilizer can increase yield of wheat obviously;and all kind of biological nature of wheat is better obviously than do not applying potassium fertilizer , except 1000 grain weight and the ratio of grain and straw; The difference of potassium nutrition absorbing be showed mainly by stem and leaf of wheat The with increase of potassium fertilizer application rates, profit of potassium in farmland will rise; The proper range of potassium application rates of wheat ought be controlled to K2O 40~80kg/hm2, Suggesting application rates of potassium fertilizer ought be K2O 40kg/hm2 in Huaibei shajing black soil area
出处
《土壤肥料》
CSCD
北大核心
2003年第4期20-23,共4页
Soils and Fertilizers