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在含有效锌0.46ppm的钙质紫色土上,施锌5～200ppm,能显著提高小麦产量,施锌临界值为7.5～20ppm,中毒临界值为(600ppm。大麦施锌2～20ppm比对照显著增产,施锌临界值为5～13ppm,中毒临界值为200ppm。由此可见,小麦施锌中毒临界值大于大麦,大麦对锌较小麦敏感。大麦籽粒中锌含量随锌浓度提高而增加。大麦作富锌啤酒原料时,施锌浓度以20ppm为宜,高于600ppm时,大小麦植株中锰含量显著下降,这可能是影响小麦产量和品质的重要原因。
In the calcium purple soil with available zinc 0.46ppm, zinc application 5 ~ 200ppm, can significantly improve the wheat yield, applied zinc threshold 7.5 ~ 20ppm, the critical value of poisoning (600ppm. Barley zinc 2 ~ 20ppm than the control significantly The critical value of zinc application was 5 ~ 13ppm and the critical value of poisoning was 200ppm.Therefore, the critical value of zinc poisoning in wheat was greater than that of barley, while that of barley was sensitive to zinc and wheat.The content of zinc in barley grains increased with the increase of zinc concentration.Waterless barley When zinc rich beer was used as the raw material, the zinc concentration was 20ppm. When the concentration was above 600ppm, the content of manganese in the wheat plants decreased significantly, which may be the important reason to affect the yield and quality of wheat.