Increasing yield with the addition of N, P, and K fertilizers

At Grobogan, Central Java Province, Indonesia N fertilization increased the weight of harvested dry grain by 143.81% and milled dry grain by 148.87%, as well as the dry weight of straw by 181.53%. P fertilization increased the weight of harvested dry grain by 5.75% and milled dry grain by 6.51%, while elevating the dry weight of straw by 26.24%. Similarly, K fertilization increased the weight of harvested dry grain by 16.11% and milled dry grain by 15.34%, alongside dry straw weight by 14.08%. Thus, it can be said that K-nutrient fertilization is able to increase rice yields higher than P-nutrient fertilization.Nitrogen fertilization in Pandeglang, West Java Province significantly increased the weight of harvested dry grain by 57.64% and milled dry grain by 55.02%, as well as dry straw weight by 69.75%. P fertilizer application led to an increase in the weight of harvested dry grain by 14.16% and dry milled grain by 14.44%, alongside dry straw weight by 12.2%. Moreover, K fertilizer provision elevated the weight of harvested dry grain by 18.08% and milled dry grain by 22.10%, as well as dry straw weight by 18.18%.The addition of N fertilizer in Sukadana, Lammpung Province led to yield elevation through a significant increase in the weight of harvested dry grain by 107.38% and milled dry grain by 109.14%, alongside dry straw weight by 59.35%. Therefore, N fertilization is very important to increase rice production in lowland rice fields. P fertilization elevated the weight of harvested dry grain by 2.19% and milled dry grain by 0%, alongside dry straw weight by 22.315%. The provision of K fertilizer significantly increased the weight of harvested dry grain by 52.17% and milled dry grain by 75.20%, as well as dry straw weight by 31.78%.