Zulputra, Zulputra; Wawan, Wawan; Nelvia, Nelvia
(2018-02-06)
The research aims to study the response of upland rice on the application of silicates and phosphate fertilizer on Ultisol. The study was conducted in land Ultisol in Pematang Berangan Village, Rokan Hulu Regency, Riau ...