Zinc is an essential nutrient in plants, and its deficiency can lead to stunted growth and reduced yields in paddy cultivation. Zinc is required for the synthesis of chlorophyll, protein, and other plant components, and its deficiency can cause chlorosis, necrosis, and other similar symptoms. Therefore, it is essential to control zinc deficiency in paddy to ensure optimum growth and yield.
Here are some ways to control zinc deficiency in paddy:
1. Soil testing: Soil testing is the most accurate way to determine the zinc status of the soil. It helps to identify the zinc deficiency and determine the amount of zinc required for a specific crop. Soil testing also helps to identify other soil factors that may contribute to zinc deficiency.
2. Zinc application: Zinc fertilizers can be applied to the soil to provide the required nutrient. Zinc sulphate is the most commonly used zinc fertilizer. Zinc chelate and zinc oxide are also used as zinc fertilizers. Zinc should be applied before planting or in the early stages of plant growth.
3. Foliar spray: Foliar spray of zinc fertilizers can be used to provide a quick supply of zinc to the plants. Foliar spray is beneficial when the soil pH is too high or when the soil has high levels of phosphorus, which can reduce the uptake of zinc by the plants.
4. Organic matter: Organic matter can help to increase the availability of zinc in the soil. Organic matter can be added to the soil by using compost or manure. Organic matter also helps to improve soil structure and fertility.
5. Crop rotation: Crop rotation can help to reduce zinc deficiency in paddy. Legumes such as soybeans, beans, and peas can fix atmospheric nitrogen and improve soil fertility, which can reduce zinc deficiency.
6. Irrigation: Zinc deficiency is more common in dry soils. Proper irrigation can help to reduce zinc deficiency by providing the required water for the plants to absorb the zinc.
In conclusion, zinc deficiency can be detrimental to paddy cultivation. Therefore, it is essential to control zinc deficiency by using soil testing, applying zinc fertilizers, using foliar sprays, adding organic matter, crop rotation, and proper irrigation. By following these practices, paddy farmers can ensure optimal growth and yield.