Sure, here’s an article on the control of zinc deficiency in paddy:
Zinc deficiency is a common problem in paddy fields, which can greatly reduce crop yields and quality. It can happen when the plant’s ability to absorb zinc from the soil is impaired, and the deficiency can manifest in various ways, including stunted growth, chlorosis, reduced tillering, and increased susceptibility to diseases. Fortunately, there are several ways to control zinc deficiency in paddy and ensure successful harvests.
One of the most effective ways to combat zinc deficiency is to apply zinc fertilizer to the soil. Zinc sulfate is the most common type of zinc fertilizer used in paddy fields, which can be added in small amounts to the soil before transplanting or broadcasting. The zinc sulfate can be mixed with other fertilizers or applied separately, depending on the soil’s needs. The recommended rate of application is usually around 10-20 kg per hectare, depending on the soil type, pH, and other factors.
In addition to zinc fertilizers, paddy farmers can also use organic materials to increase the soil’s zinc content. Organic matter such as compost, manure, and crop residues can help improve soil structure and nutrient availability, including zinc. By incorporating organic materials into the soil, farmers can enhance the soil’s capacity to hold water and nutrients, as well as stimulate microbial activity that can facilitate zinc uptake by the plant.
Another way to control zinc deficiency in paddy is to use zinc-enriched seedlings, which are produced by soaking the seeds in a solution of zinc sulfate or other zinc sources. This method can enhance the plant’s zinc uptake and accumulation from the initial stages of growth, boosting its tolerance to zinc-deficient conditions. The zinc-enriched seedlings can be transplanted into the paddy field as usual, and they can grow better than normal seedlings in zinc-limited soils.
Apart from external measures, paddy farmers can also optimize zinc utilization in plants by managing soil pH, drainage, and other parameters. Zinc availability can be affected by soil pH, with acidic soils often having low zinc levels. By adjusting the soil pH to a favorable range (around 6.0-6.5), farmers can promote zinc solubility and availability, as well as stimulate root growth and nutrient uptake. It’s also essential to ensure proper drainage and aeration in paddy fields, as waterlogged and compacted soils can limit zinc diffusion and uptake.
In conclusion, controlling zinc deficiency in paddy can be achieved through a combination of external measures and soil management practices. By using zinc fertilizers, organic materials, zinc-enriched seedlings, and optimizing soil pH and drainage, paddy farmers can ensure adequate zinc supply to their crops and enhance their yield, quality, and resistance to stresses.