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2014年6—9月,在河南省商丘市民权县布置田间小区试验,研究了施用含锌尿素对夏玉米产量及其构成要素、氮素累积量、氮肥利用率、籽粒锌含量及累积量的影响。结果表明,与施用普通尿素处理相比,施用含锌尿素能够增加夏玉米籽粒产量和氮素的吸收量,提高籽粒锌含量,并提高夏玉米的氮肥利用率,其籽粒产量、氮累积量、氮肥利用率、籽粒锌含量、籽粒锌累积量分别增加4.25%、21.17%、475%、18.82%、24.00%。施用含锌尿素并减氮20%条件下,籽粒产量、氮累积量、氮肥利用率、籽粒锌含量、籽粒锌累积量较施用普通尿素处理分别增加了2.15%、18.78%、551.68%、9.03%、11.37%。说明施用含锌尿素可以明显提高夏玉米产量,增加籽粒锌含量,促进夏玉米植株对氮素的吸收,提高夏玉米的氮肥利用率,对作物生长、人体健康以及提高肥料利用效率等方面具有积极作用。
From June to September 2014, field plots were arranged in civil rights counties in Shangqiu City, Henan Province. The effects of applying zinc urea on the yield and its components of summer maize, nitrogen accumulation, nitrogen use efficiency, grain zinc content and accumulation influences. The results showed that the application of zinc-containing urea increased the grain yield and nitrogen uptake of summer maize, increased the zinc content of summer maize, and increased nitrogen utilization rate of summer maize. The grain yield, nitrogen accumulation, Nitrogen use efficiency, grain zinc content and grain zinc accumulation increased by 4.25%, 21.17%, 475%, 18.82% and 24.00% respectively. The results showed that grain yield, nitrogen accumulation, nitrogen use efficiency, grain zinc content and grain zinc accumulation increased by 2.15%, 18.78%, 551.68% and 9.03%, respectively, when applied with urea and 20% , 11.37%. The results showed that the application of zinc-containing urea can significantly increase the yield of summer maize, increase the grain zinc content, promote the absorption of nitrogen by summer maize plants, increase the nitrogen utilization rate of summer maize, and have positive effects on crop growth, human health and fertilizer use efficiency effect.