| 肖强,王甲辰,左强,张琳,刘宝存,赵同科,邹国元.水分对微水溶性胶结包膜肥料氮素释放的影响及其生物学效果研究[J].干旱地区农业研究,2009,27(6):1~6 |
| 水分对微水溶性胶结包膜肥料氮素释放的影响及其生物学效果研究 |
| Effect of water content on nitrogen release and biological effect of slightly-water-soluble felted and coated fertilizer |
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| DOI：10.7606/j.issn.1000-7601.2009.06.01 |
| 中文关键词: 微水溶性 胶结包膜肥料 水基成膜法 研制 评价 |
| 英文关键词:slightly-water-soluble felted and coated fertilizer a way of water as solvent and coated material development evaluation |
| 基金项目:北京市科技新星计划B类基金(2008B38)； 北京市农林科学院青年基金“适用于半干旱条件下的微水溶性胶结包膜缓释肥的研制及评价”； 北京市科委多功能肥料/基质研究与开发基金(d0706004040431) |
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| 中文摘要: |
| 采用水基成膜法研制出低成本、易降解的微水溶性胶结包膜缓释肥料。应用性能测试、不同田间持水量下土壤培养及小白菜盆栽试验研究了其养分释放规律与生物学效应,试验表明:微水溶性包膜材料致密、整体厚薄较均一,其吸水性、透水性能优良,且具一定的生物降解性能。在田间持水量50%、60%、70%条件下,微水溶性胶结包膜缓释肥料土壤铵态氮含量变化与水分呈正相关关系,24 d后硝态氮含量呈高于尿素处理趋势。在田间持水量50%、60%、70%三种水分条件下,微水溶性胶结包膜肥料处理油菜产量均高于尿素处理,在70%田间持水量下达到了显著差异(P<0.05);微水溶性胶结包膜肥料处理增加了Vc含量,但没有显著增加油菜含氮量、硝酸盐含量和叶绿素含量。 |
| 英文摘要: |
| Slightly-water-soluble felted and coated fertilizer with low cost and easy degradation was developed using a way of water as solvent and coated material.Applying experiments of performance test,indoor soil training test under different field capacity and spring rape pot,a study was made on nutrient release and biological effect of water-soluble felted and coated fertilizer.The results showed that this kind of water-soluble coated material was characterized as its compact contexture,uniform thickness,fine performance of water absorption and permeability and certain degree of biodegradability.Under 50%,60% and 70% field capacity,ammonium nitrogen content in soil with water soluble felted and coated fertilizer was in positive correlation to water content,and nitrate nitrogen content after 24 d was more than that with urea treatment.The output of spring rape with water-soluble felted and coated fertilizer treatment was higher than that with urea treatment under the condition of 50%,60% and 70% field capacity,and the difference was significant under 70% field capacity(P<0.05).Compared to urea treatment,water-soluble felted and coated fertilizer treatment increased the rape's content of Vc,but not the content of total nitrogen,nitrate or chlorophyll. |
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