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钾矿粉肥是利用含钾的粉砂岩经过磨细而制成的一种钾肥。它能就地取材,制造工艺简单,成本低廉,是金华地区贫下中农创制的一种土化肥。为了明确钾矿粉的肥效,金华县农科所在小麦上进行了肥效试验,现将结果简述于下:一、试验情况:试验地土壤系冲积性砂壤土。耕层土壤含有机质2.02%,全氮0.10%,全磷0.10%,全钾3.6%;速效氮0.0068%,速效磷14.2ppm,每100克士含速效钾9.0毫克;土壤的酸碱度为
Potash fertilizer is the use of potassium-containing siltstone after grinding and made of a potassium fertilizer. It can be drawn on the spot, the manufacturing process is simple and the cost is low. It is a kind of indigenous fertilizer created by poor and middle peasants in Jinhua area. In order to clarify the fertilizer efficiency of potash powder, Jinhua County Department of Agriculture where the fertilizer effect test carried out, the results will be briefly described below: First, the test conditions: the test soil alluvial sandy loam. Topsoil contains 2.02% organic matter, total nitrogen 0.10%, total phosphorus 0.10%, total potassium 3.6%; available nitrogen 0.0068%, available phosphorus 14.2ppm, per 100 grams of available potassium 9.0 mg; soil pH