Paddy Fertilizer Mixtures
The most crucial factor for the yield of rice is soli nutrients.The objective of fertilizing is to replenish the soil from loss of soil nutrients via;
- Continuous cultivation on the same land.
- Removal of harvest and straw.
- Leach to soil with water and decomposition
Fertilizer Needs Assessment Process
Prior to the season, chemical fertilizer need is assessed by the Department of Agriculture based on the agri ecological zones and irrigation systems. They will also consider cultivation targets before issuing fertilizer recommendations through the area Agrarian Services.
Promotes rapid plant growth and improves grain yield and grain quality. N is generally the most limiting nutrient as it is needed in large amounts and is readily lost as a gas (volatilized) and by leaching (washing out of the root zone).
Essential for root development, tillering, early flowering, and ripening. It is especially deficient in sandy soils with low organic matter, very acidic soils, and alkaline soils.
Essential for root growth and plant vigor. It also helps fight against lodging and improves crop resistance to diseases. Potassium can quickly become a yield-limiting factor in high-yielding rice fields when the straw is removed from the field. Rice paddy straw is rich in K!
Zinc and sometimes sulfur deficiencies are much less frequent but can be important locally.