The contrastive experiments of organic inorganic compoundfertilizer with NPKcompoundfertilizer was carried out by corn, rice, cowpea and Chinese cabbage.
在玉米、水稻、豇豆、小白菜四种作物上，进行有机无机复合肥与氮、磷、钾混合肥对比试验。
2
The production technology for high-concentration sulphur-based NPKcompoundfertilizer is researched and conversion of potassium chloride, slurry and product properties are discussed.
对硫基氮磷钾高浓度复合肥生产工艺进行了研究，介绍了硫酸钾的转化率、料浆性质和产品性能。
3
The S-NPK is a high concentration ternary phosphate compoundfertilizer warmly welcomed by the farmers which is developed in China and features low energy consumption and low production cost.