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2001年正定县土肥站选择土壤速效钾含量不同的三块耕地进行了番茄增施钾肥对比示范,处理区每亩施氧化钾12公斤,对照区不施钾肥,其它一切管理相同。示范结果表明:耕地土壤处理区施用钾肥的番茄生长初期幼苗茎秆粗壮、茎直,叶片展开度好。
In 2001, Chengding County Soil and Fertilizer Station selected three different types of arable land with different contents of available potassium fertilizer to compare the growth of potash fertilizer. The treatment area used 12 kg of potassium oxide per acre and no potassium fertilizer in the control area. The other management was the same. The results showed that the growth of stalks and stems of the tomato seedlings were good at the early growth stage.