【摘要】 以中低品位磷矿为原料,利用物理方法对磷矿粉进行微晶化加工处理。经微晶化处理后的磷矿粉颗粒均匀性良好,结构松散,粒径整体变小,枸溶性磷提高77.99%。通过种植大田试验探究矿物磷肥对苹果栽培质量的影响,结果表明,矿物磷肥处理可以显著提高单果重、糖酸比、叶片叶绿素,较空白处理分别提高了25.01%、13.07%、25.35%,有效改善了果品质量。使用微晶化磷矿粉显著增加了土壤速效磷含量,两组施矿物磷肥处理在0~20 cm和20~40 cm分别提高了34.32%、84.42%和17.88%、44.18%。微晶化磷矿粉增量施用后苹果栽培效果与普通过磷酸钙处理相当。更多还原

【Abstract】 Taking middle grade phosphate rock as main material,the activation process of microcrystalline pho sphate rock was to characterize the performance by physical methods. The results showed that after the crystallization treatment,phosphate rock powder particles had good uniformity,loose structure,small size,and citric soluble phosphorus content increased by 77.99%. In 2013-2014,field experiments were conducted in Changping,Beijing,and the effects of mineral fertilizer on quality of apple cultivation was explored. Results indicated that the mineral fertilizer could significantly improve fruit weight,sugar acid ratio,chlorophyll,compared to the blank treatment,the index increased by 25.01%,13.07% and 25.35%,and it could effectively improve the quality of fruit. Microcrystalline phosphate rock significantly increased the content of soil available phosphorus,in the two groups appling mineral fertilizer,the available phosphorus in the 0-20 cm and 20-40 cm increased by 34.32%,84.42% and 17.88%,44.18% respectively. The cultivation effect of microcrystalline phosphate rock was similar to ordinary superphosphate treatment in apple.更多还原