Paddy is a nutrient-demanding crop, and its yield depends greatly on how well nutrients are supplied throughout the growing season. Because rice is grown in flooded or semi-flooded fields, nutrient availability behaves differently compared to other crops. Proper nutrient management ensures strong tillering, healthy panicles, and good grain filling. For farmers, understanding when and how to apply nutrients helps achieve higher productivity at lower cost.
The foundation of good nutrient management begins with soil preparation. Before planting, farmers should add well-decomposed farmyard manure (FYM) or compost at the rate of 1–2 tonnes per acre. Organic matter improves soil structure, increases water-holding capacity, and enhances microbial activity. It also slowly releases nutrients during the crop cycle.
Paddy requires three major nutrients—Nitrogen (N), Phosphorus (P), and Potassium (K). Each plays a different role. Nitrogen supports leaf growth and tillering. Phosphorus helps root development and strong early growth. Potassium improves plant strength, controls disease resistance, and supports grain formation.
For phosphorus and potassium, it is best to apply them as a basal dose, meaning at the time of final puddling or before transplanting. These nutrients remain in the soil and are available throughout the season. Common fertilizers include DAP, SSP, and MOP. Applying these before transplanting helps seedlings establish quickly and form healthy tillers.
Nitrogen, however, should be given in split applications. Paddy needs nitrogen at three critical stages.
Basal application at planting supports initial growth.
Tillering stage—usually 20–25 days after transplanting—encourages the formation of productive tillers.
Panicle initiation stage, around 45–50 days, boosts the formation of panicles and grain filling.
Giving nitrogen in three splits ensures that the crop receives it when needed, avoids wastage, and reduces the risk of lodging. Excess nitrogen can cause tall, weak plants and increase pest attack, so balanced application is important.
Micronutrients also play a major role in paddy cultivation. Zinc deficiency is common in many paddy fields, especially those with continuous flooding. Symptoms appear as yellowing leaves and stunted plants. Applying zinc sulphate at planting or spraying micronutrient mixtures corrects this problem. Iron deficiency can occur in sandy soils and can be managed by applying organic manure or foliar iron sprays.
Maintaining proper water management is essential for nutrient uptake. Flooding controls weeds and helps nutrient movement, but excessive or standing water for too long can reduce nitrogen availability. The field should ideally be kept moist, not deeply flooded, after the initial establishment period.
Weed control is another important part of nutrient management. Weeds compete with rice for nutrients, sunlight, and water. Removing weeds in the early stages ensures that more nutrients remain available to the crop.
Regular soil testing helps farmers understand their soil’s nutrient status and decide the exact fertilizer requirement. This prevents both under- and over-fertilization and saves money.
In simple words, nutrient management in paddy includes applying organic manure, giving phosphorus and potassium as basal dose, splitting nitrogen into three stages, addressing micronutrient deficiencies like zinc, maintaining proper water levels, and controlling weeds. With these practices, farmers can achieve strong plant growth, healthy panicles, and high-quality rice yield.
