STUDY ON EFFECTS OF SOME TYPES OF FERTILIZERS ON CUC BONG SOYBEAN IN VO NHAI DISTRICT, THAI NGUYEN PROVINCE

Abstract

The effects of some fertilizers on Cuc bong soybean plant in Vo Nhai district, Thai Nguyen province, was evaluated to determine the appropriate dosage and types of fertilizers for this local soybean plant. The study consisted of 2 separate experiments, arranged in complete randomized block pattern with 3 replicates, and monitored growth and development indicators of Cuc bong soybean. The results of the study determined effects of the amount of phosphate fertilizer and some organic fertilizers on the index of leaf area, weight and number of nodules, the ability to accumulate dry matter, the total number of fruits on the tree and the seed yield of the Cuc bong soybean. Phosphorus fertilizer dosage for high net yield was 60 kg P₂O₅/ha and microbiological fertilizer of Song Gianh was suitable for Cuc bong soybean in Vo Nhai district, Thai Nguyen province.