摘要
新型可控树脂包衣尿素以复合树脂材料为原料,可控制氮素的释放,以满足作物全生育期对氮素的需求。文章主要介绍树脂包衣尿素在恒温25℃水中溶出氮含量的两种测定方法:分光光度法与数粒法,并对所得数据进行了分析。结果表明:不同释放天数的树脂包衣尿素能在预定释放期内,将氮素缓慢释放出来;分光光度法和数粒法测定不同释放天数的树脂包衣尿素溶出氮相关性均较好。
The coating urea is coated by composite polythene,which can control the release of the Nitrogen to satisfy the needs of the plant in all of grow period.The test method of solute nitrogen in the water(25℃)from coat urea :the test by granular counted and the test by spectrophotometer.Analysis the result:The mount of release nitrogen of the coat urea in design date;There are good correlated coefficient between the test by granular counted and the test by spectrophotometer.
出处
《内蒙古农业科技》
2007年第4期54-56,共3页
Inner Mongolia Agricultural Science and Technology
关键词
树脂包衣尿素
分光光度法
数粒法
The coating urea
Tthe test by spectrophotometer
The test by granular counted
