Application of N, P, and K fertilizers to enhance yields in lowland rice fields

Fertilizing lowland rice fields using N, P, and K increased average yields by 53.12% with a range of 25.71 to 99.50%. The highest increase to 99.50% occurred in Sukadana Subdistrict, East Lampung District, Lampung Province, while the yields on Java Island ranged from 32.56 to 69.61%.Among the three macronutrients, the addition nutrient N into the soil results in higher rice yields compared to the addition of the nutrients P and K. The average increase in rice yields was 35.22%, with values ranging from 15.85 to 51.52%. The highest increase in rice yields on Java Island occurred in Panimbang Subdistrict, Pandeglang District, Banten Province at 51.29%, while the greatest results outside Java were recorded in Palupuh Subdistrict, Agam District, West Sumatra Province at 51.52%.