不同磷肥品种及用量在辣椒上的施用效应

Effects of Different Application Rates and Species of Phosphate Fertilizer on Pepper

为了探明不同磷肥品种及用量在辣椒上的应用效果,采用盆栽试验方法研究不同施磷肥处理对辣椒生长、产量等的影响。结果表明,不施磷肥使辣椒生长受到严重制约,产量只有正常施用磷肥的7.5%～11.6%;磷肥对辣椒的果重、果径、分枝及产量都有明显的促进作用,不同的磷肥品种,增产效果也有一定差异,同等高施磷量中,过磷酸钙效果最好,钙镁磷肥次之,低含量磷酸氢钙(白肥)最差。

The effects of different application rates and species of phosphate fertilizer on pepper were studied with pot culture experiment. The results showed that the growth of pepper was severely constrained by no phosphate fertilizer application, pep- per yield was only 7.5%-11.6% of the normal application of phosphate fertilizer. Applying phosphate fertilizer could signifi- cantly increase the growth and yield of pepper and different phosphate fertilizer had different yield increasing effect. When ap- plying the same amount of phosphorus, the yield increase of pepper was the best in the treatment of calcium superphosphate, followed by calcium and magnesium phosphate treatment, the worst in the treatment of calcium hydrogen phosphate.