Pengaruh Pemberian Pupuk Hijau Lamtoro (Leucaena Leucocephala) Dan Pupuk P Te…

ABSTRACT Soybean (Glycine max L.) is a food commodity that is used as a source of highly nutritious food for humans. Along with the increase in population, the need for soybeans from year to year is increasis, especially in Riau Province. Soybean productivity increase needs to be fertilized both organic and inorganic fertilizers. One of the organic fertilizers given is lamtoro green manure…