Rekomendasi Pemupukan N, P dan K pada Tanaman Padi Sawah (Oryza sativa L.) dalam Program Operasi Pangan Riau Makmur (OPRM) di Kabupaten Kampar

Abstract

An experiment to study the growth and yield components the efficiency of N, P and K fertilizers for paddy rice in the
program of prosperous Riau food operation (OPRM) and to define the exactly recommended fertilizer in Kampar district has
been conducted from July to November 2011. The research was conducted using Randomized Block Design (RBD) with 6
treatments and 4 replications. The further test has been conducted using DNMRT 5 %. The treatments consisted of : A0=without
fertilizer; A1=7.5 g Urea, 6 g TSP and 3 g KCl per plot; A2=15 g Urea, 12 g TSP and 9 g KCl per plot; A3=22.5 g Urea, 18 g
TSP and 15 g KCl per plot (dosage of fertilizers recommended in the program of prosperous Riau food operation in Kampar
district); A4=30 g Urea, 24 g TSP and 21 g KCl per plot; and A5=45 g Urea, 30 g TSP and 15 g KCl/plot (dosage of fertilizers
recommended in the program of prosperous Riau food operation in Riau). The results showed that effect of N, P and K fertilizers
for paddy rice was significant in increasing the number of productive tillers, the percentage of grain filled and grain yield,
whereas the parameters of 100-grains weight, and the efficiency of grains was not significant. The application of N, P and K
fertilizers 45 g Urea, 30 g TSP, and 15 g KCl per plot (150 kg.ha-1 Urea, 100 kg.ha-1 TSP, and 50 kg.ha-1 KCl) which was the
dosage of fertilizers recommended in the program of prosperous Riau food operation at Riau increased grain yield better than
the other dosage. If converted to hectar, the yield was equals to 4,07 tons.ha-1.Whereas, the highest of grain yield efficiency was
at dosage of 7.5 g Urea, 6 g TSP and 3 g KCl per plot (25 kg.ha-1 Urea, 20 kg.ha-1 TSP and 10 kg.ha-1 KCl). The recomended
use of fertilizers for paddy rice planted with PB-42 variety in Kampar District was suggested at a dosage of 150 kg.ha-1 Urea,
100 kg.ha-1 TSP and 50 kg.ha-1 KCl.

Keyword: recommendation, N, P, K fertilizers, paddy- rice, efficiency, OPRM program