PENGARUH BERBAGAI DOSIS PUPUK NPK TERHADAP PERTUMBUHAN DAN HASIL PADI GOGO LOKAL KULTIVAR PAE BOHE

Abstract

Upland rice (Oryza sativa L) is an important food crop commodity for the world community including Indonesia and is the main source of food for more than one-half of the world's population, rice is the staple food of Indonesian people in general. This research aims to get the dose of NPK fertilizer that can increase the growth and yield of upland rice. This research has been carried out on farmland in Tamarenja Village (Kalama) at an altitude of 180-250 meters above sea level, with latitude location LS 00o26'51.5 “and BT 119o49'50.6”, Sindue District, Donggala Regency.The research time starts from March to August 2020. This study used a Randomized Group Design (RAK) one treatment factor used was the dose of pearl NPK fertilizer consisting of 6 levels, namely No NPK treatment (P0), NPK dose of 100 kg ha-1 (P1) = 25, 2 g plot-1, NPK dose 200 kg ha-1 (P2) = 50, 4 g plot-1, NPK dose 300 kg ha-1 (P3) = 75, 6 g plot-1, NPK dose 400 kg ha-1 (P4) = 100, 8 g plot-1, and NPK dose 500 kg ha-1 (P5) = 126 g plot-1. This treatment was repeated 4 times so that there were 24 experimental units. The results showed that the dose of NPK fertilizer 300 kg ha is the best dose for upland rice cultivar pae bohe which can increase plant growth (number of leaves, leaf length, and number of tillers per clump), while the dose of NPK fertilizer 100 kg ha is the best for increasing yield components (number of panicles per clump, panicle length, number of grains per panicle, 1000 grain weight, dry grain yield and reducing the percentage of empty grain per panicle).

Keywords: NPK fertilizer dosage, upland rice, growth and yield.