Cocoa is one of the plantation crops which ranks third after palm oil and rubber tree. Cocoa is C3 plants that is tollerant to the low sun intensity. One way to achieve these conditions by providing shade. Shade that used ...

Abstrak Rice is the staple food for most of the world’s population. Increasing rice production still very depends on the use of chemical fertilizers very much. The use of organic fertilizer is needed to replace the role ...