Sure, Here’s an article on Control of iron deficiency in paddy:
Iron deficiency is a common issue faced by paddy growers worldwide. Iron deficiency in paddy is caused by the lack of iron uptake by plants, which negatively affects plant growth and yield. The deficiency is most prominent in calcareous and alkaline soils. In this article, we’ll examine how to control iron deficiency in paddy.
Soil Management
Iron deficiency happens mostly in alkaline soils, with pH being an important factor that affects iron absorption. Growers should ensure that the soil pH level falls between 5.5 to 6.5 to create the best conditions for iron absorption by the plant roots. Failing which, application of sulfur-containing soil acidifiers such as ammonium sulfate, ferrous sulfate and elemental sulfur would be effective in reducing soil pH and facilitate iron uptake by the plants. Applying 5 to 7 pounds of the acidifying material per 100 square feet can lower soil pH levels by 1. Application may be repeated every three to four months.
Fertilization
Correct fertilization practices can help with iron deficiency control. Before planting, it is crucial to apply an adequate amount of fertilizer to the soil. Inorganic fertilizers, especially those containing ammonium, reduce soil pH which, in turn, facilitates iron uptake by the plant roots. Application of organic compounds such as cattle or chicken manure could increase the soil’s iron content. Application of 2 to 5 tons of manure before planting can significantly increase the amount of iron available in the soil for plant absorption.
Foliar Nutrient Spraying
Foliar nutrient spraying is an effective way to manage iron deficiency in paddy plants. A foliar nutrient mixture containing 1.5% ferrous sulfate and 1.5% zinc sulfate is a commonly used mixture to control this deficiency. The mixture should be sprayed early in the morning or in the evening when the temperature is cooler. Make sure that the mixture is thoroughly sprayed onto the leaves and stems. Spraying the mixture twice a week is recommended for three consecutive weeks. Subsequently, reduce the frequency to once every two weeks.
Conclusion
Iron deficiency in paddy can lead to slow plant growth, as well as lower yields. It is important to identify and control the deficiency early to ensure a good yield during the harvest season. Soil management, fertilization practices and foliar nutrient spraying are some ways to combat the deficiency. By following these steps, growers can ensure that their paddy plants receive an adequate amount of iron, resulting, in healthy growth and higher yields.