Study on optimum quantity of compost in conjunction with chemical fertilizer and pesticides accelerated. Phot. 9 ForProduction of corn, wheat, animals in DIN NA (Group 5 soil series) in Amphoe thoeng province.Chiang Rai
The appropriate amount of compost with chemical fertilizers and chemicals subaltern. 9 for the production of maize in soils. (Soil group 5), the entertainment district. Chiang Rai
Study of compost and chemical fertilizer, and appropriate accelerator opportunities. 9 for pets corn production in paddy soil (soil group. 5) thoeng district area in rai.