The subject "survey of productivity growth, the same year sweet potato and determine the amount of organic microbiology, Unicorn, protein, potassium to productivity and quality with potatoes in Phú Thiện, Gia Lai province, from March 8 to March 2014, 2015. the aim to is 1 to 2 just like sweet potatoes have a high yield, good quality and determine the amount of organic microbiology, Unicorn, protein and potassium suitable for sweet potato plants take root growing, productivity is high and bring the best economic efficiency for sweet potato farmers in Phú Thiện Gia Lai province.
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