With the cost of fertilizer spiraling up, meeting nutrient requirement of rice crop becomes doubly burdensome.
According to the Bureau of Agricultural Statistics, a fanner spent close to P13,000 on the average in 2005-2007 dry season (DS) cropping, and 34 percent of this or P4,500 was spent on fertilizers. Many farmers, however, failed to apply the needed fertilizers due to financial constraints. While some managed to loan from banks or simply borrowed money from fellow farmers, fertilizer application was already late and affected crop performance.
For instance, nitrogen use can be_ optimized through “selection of proper fertilizer rates and sources, correct fertilizer placement, and optimum timing of applications,” according to the article “An Overview of Nutrient Management with Economic Considerations” published by the North Carolina State University. This shows that it is not enough that a farmer applies fertilizer because the amount and timing of application arc equally important.