Pengaruh Pupuk Fosfat Terhadap Pertumbuhan Dan Hasil Tanaman Kacang Hijau (Vi…

ABSTRACT Green beans have a potential to be developed. Effort that can be made is by using marginal soils; Inceptisols, Ultisols and Histosols that dominate the Riau Province, wich have low P availability. The usage of rock phosphate (RP) and TSP in marginal soils can overcome P deficiency and can be used as a soil acidity repairs. The aim of this research is to know the effect of phosphat…