Pengaruh Pemberian Fosfat Alam Terhadap Pertumbuhan Dan Hasil Tiga Varietas P…

The research aims to study the effect of natural phosphate (rock phosphate) on growth and yield of three varieties of upland rice in Ultisol medium. The research was conducted at the Green House of the Faculty of Agriculture, University of Riau, Pekanbaru from March to August 2017. The research used Split Plot Design. The main plot was upland rice consist of three varieties (Situ Bagendit, Situ…