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为探讨自行研制的有机无机复合物包膜缓释尿素的缓释性能及对作物生长发育的影响,进行辣椒小区田间试验。结果表明,包膜缓释尿素处理辣椒的椒长、椒肩宽、总产量比常规施肥分别增加15.8%、26.2%、12.4%,包膜缓释尿素用量减少20%的条件下,椒肩宽、总产量比常规施肥增加10.9%、3.3%;等氮量包膜缓释尿素和包膜缓释尿素减量20%处理辣椒果实中NO3--N含量比常规施肥减少41.7%和44.2%;在辣椒整个生长期内施用包膜缓释尿素处理土壤中的全N含量保持在100 mg kg-1左右。综上,有机无机复合物包膜缓释尿素能够达到持续供应作物养分,促进作物生长发育,降低硝酸盐含量,提高产量的目的。
In order to investigate the sustained-release properties of self-developed organic-inorganic composite coated sustained-release urea and its effect on the growth and development of crops, a field experiment was conducted in the pepper area. The results showed that under the condition of coated pepper sustained-release urea treatment pepper length, pepper shoulder width, total output increased 15.8%, 26.2%, 12.4%, 20% compared with conventional fertilization, , And the total yield increased by 10.9% and 3.3%, respectively. The content of NO3 - N in capsicum decreased by 41.7% and 44.2% compared with the conventional fertilization when treated with nitrogen - coated slow - release urea and coated slow release urea by 20% The total N content in the soil treated with coated slow-release urea during the whole growth period of pepper remained about 100 mg kg-1. In summary, the organic-inorganic composite coated slow release urea can achieve the purpose of continuously supplying crop nutrients, promoting crop growth and development, reducing nitrate content and increasing yield.