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Vol 4, No 2 (2019): AUGUST Growth and Yield Response of Maize (Zea mays L.) on Acid Soil to Different Rates of Humic Acid and NPK Fertilizer Abstract  PDF
Putri Wulandari, Endang Sulistyaningsih, Suci Handayani, Benito Heru Purwanto
 
Vol 2, No 3 (2017): December Effect of Humic Acid and Molybdate on Phosphate Adsorption in Typic Hapludult of Cigudeg, Bogor Abstract  PDF
Heri Wibowo, Benito Heru Purwanto, Supriyanto Notohadisuwarno
 
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