含硼尿素的肥效研究

The Fertilizer Response of Crops to Urea Containing Borate

田间、盆栽试验结果表明,施用含硼尿素能促进作物对氮、磷养分的吸收,其氮素利用率比普通尿素提高4％～7％。硼砂对土壤脲酶活性有一定的抑制作用。在辽宁省主要耕作土壤上,施用含硼尿素对水稻、玉米、高粱、谷子、大豆、花生、甜菜等作物均有明显增产效果。与相同用量普通尿素相比,增产率在5％～20％之间。掺入尿素中的硼砂含量,以4％用量较好。

The results of the experiment showed that the application of urea containing borate enhanced the uptake of N, P nutrients by crops and the nitrogen utilization rate was 4%～7% higher when this fertilizer was used rather than ordinary urea. But the borax inhibited the activity of soil urease. The effects of urea containing borate on the increase yields of rice, maize,sorghum, millet, soybean, peanut, sugarbeet, etc, were obvious on arable soils in Liaoning Province. The yields of applying urea containing borate increased but 5%～20% compared with those of ordinary urea under equivalent fertilizer rates. The optimal amount of borax adding to urea was 4%.