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长效尿素这一尿素新品种是在尿素中添加了脲酶抑制剂,使土壤脲酶活性得到适度抑制,减缓了尿素的分解速度,从而使尿素的肥效期由原来的50天延长到110天以上,氮紊利用率由40％提高到52％,对各类作物平均增产11.3％,相当节肥20％以上,同时减免追肥用工,解放了劳力,为农业免中耕提供了条件。 所选用的脲酶抑制剂,抑制效率高,添加剂量低,在自然界中的百合科、茄科、越桔科、杜鹃花科和鼠李科的某
Long-acting urea The new urea is urea added urease inhibitors, so that soil urease activity was moderate inhibition, slowing the decomposition rate of urea, so that the urea fertilizer from the original 50 days to extend the period to 110 days or more, Nitrogen utilization rate increased from 40% to 52%, an average increase of 11.3% for all kinds of crops, a considerable savings of more than 20%, while reducing fertilization of labor, the liberation of labor, agricultural free farming provided the conditions. The selected urease inhibitors, inhibition of high efficiency, low dosage, lily family in the nature, Solanaceae, Clivia, Ericaceae and Radix a