活化褐煤包裹尿素的作物效应

研制缓释氮肥是解决肥料利用率低,环境污染等问题的有效手段.试验研究选取具有一定水溶性庸殖酸含量的活化褐煤作为包裹材料包裹尿素,制作出具有一定缓释效果的包裹尿素,通过小麦盆栽试验验证其作物效应.结果表明,施用包裹尿素的小麦在N累积和产量上均优于施用普通尿素的小麦,其中每穗粒数提高8.2％,单株产量提高13.3％,成熟期N累积量提高了15.8％.因此,活化褐煤包裹尿素对促进植物生长、提高氮肥肥效都具有积极作用.

Effect of Slow Released Urea with Active Lignite Coated on Wheat

Coated slow-release nitrogen fertilizer application was one of the effective ways to increase nitrogen fertilizer utilization and decrease environment pollution. Lignite was a kind of material with water-solution humic-acid and had no pollution to the environment. Coated urea fertilizer here was made with active-Lignite coated and urea enfolded, and pot experiment applied with coated urea and common urea on wheat used to test this kind fertilizer in Inner Mongolia Agriculture University. The results showed that compared with common urea treatment, plant N accumulation and grain yield were higher than under coated urea treatment. The particle per panicle, yield per plant increased 8.2% and 13.3%, and maturity plant N accumulation increased 15.8% respectively with coated urea than common urea. Above all, activated lignite coated urea had an active effect on wheat growth and N use efficiency.