摘要
研制了一种长效复合肥料,并证实了它的效果。文中以不同氮源、磷源、养分配比、粘结剂种类和用量为因素,采用正交设计的方法设计肥料,通过元素溶出率模拟指标,优选出采用脲甲醛作为氮源、CaHPO4作为磷源,使用少量的甲基纤维素为粘结剂制作成的全营养高浓度复合肥料,养分水溶出率低,物理性状好。盆栽试验表明,研制的长效复合肥与普通复合肥比较有效期长,达14个月以上,且可一次大量施用而不致产生肥害,优选出的使用方法为颗粒剂7.5g/kg土。对花卉栽培可节省管理的时间。
A new slow-release fertilizer was developed by laboratory and cultivated trials. Selected by the soluble rate of the treatments designed by orthogonalty design, its components include urea formaldehyde(N source), CaHPO4 (P source), methyl cellulose(adhesive), K, Mg, S and all microelements. It was tested that its efficiency is long than 14 months, and 7.5 g of it per kilogram soil (in particles) is more suitable than other treatments. It is profitable for gardening of saving time from management.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
2003年第6期735-740,共6页
Journal of University of Electronic Science and Technology of China
关键词
长效复合肥
溶出率
肥效试验
使用方法
slow-release compound fertilizer
develop
soluble rate
efficiencytest
use method
