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1973年,我们在秋播时作了氮、磷、钾肥效对比试验。试验共分五个处理:氮、磷、钾全施区,施氮区,施磷区,施钾区和对照区。每小区肥料用量为:碳铵4.5斤、过磷酸钙9斤、氯化钾4.5斤。除氮、磷、钾全施区外,其余四个处理设四个重复,供试品种“武麦一号”小麦,于11月15日催芽播种。试验结果:对照小麦出现早衰,施用钾肥的小麦青杆黄熟、粗壮不倒,施氮肥的贪青迟熟宜倒伏。室内考种比较,施钾肥的株高低于
In 1973, we made a comparison experiment on nitrogen, phosphorus and potassium fertilizer efficiency during the autumn seasons. The experiment is divided into five treatments: nitrogen, phosphorus and potassium application area, nitrogen application area, phosphorus application area, potassium application area and control area. The amount of fertilizer per plot for: ammonium bicarbonate 4.5 pounds, superphosphate 9 pounds, 4.5 kg of potassium chloride. In addition to the N, P, K application area, the remaining four treatments set four replicates, the test varieties “Wu Ma 1 ” wheat, on November 15 germination sowing. Test results: The control wheat showed premature aging, the wheat stems with potassium fertilizer were yellow and thick, not stubborn, and the application of nitrogen fertilizer should be lopsided. Indoor test species comparison, application of potassium fertilizer plant height below