Zinc is an essential micronutrient required for the normal growth and development of paddy plants. Zinc deficiency in paddy nurseries can have a detrimental effect on the growth and yield of the crop. Therefore, it is crucial to control zinc deficiency in the paddy nursery. Here are some information and tips on how to manage zinc deficiency in the paddy nursery:
Symptoms of Zinc Deficiency in Paddy Nursery:
Zinc deficiency in paddy nursery is characterized by various symptoms such as stunted growth, interveinal chlorosis, yellowing of leaves, small and distorted leaves, and poor root development. The symptoms of zinc deficiency can vary depending on the severity of the deficiency.
Sources of Zinc for Paddy Nursery:
There are various sources of zinc that can be used to control zinc deficiency in paddy nursery. Some of the commonly used sources of zinc for paddy nursery are:
1. Zinc sulfate: Zinc sulfate is the most commonly used source of zinc for paddy nursery. It is highly soluble in water and can be easily absorbed by the plants.
2. Zinc oxide: Zinc oxide is another source of zinc that can be used in paddy nurseries. It is less soluble in water compared to zinc sulfate, but it can provide a slow-release of zinc to the plants.
3. Zinc chelates: Zinc chelates are organic compounds that bind zinc ions to make them more available to the plants. They are expensive but can provide a highly available form of zinc to the plants.
Application of Zinc in Paddy Nursery:
The application of zinc in paddy nursery can be done through various methods such as:
1. Soil application: Zinc sulfate can be applied to the nursery soil before planting to provide zinc to the plants. The recommended rate for soil application is 5-10 kg/ha.
2. Foliar application: Zinc sulfate can also be applied to the leaves of the paddy plants in the form of a foliar spray. The recommended rate for foliar application is 0.5-1% solution.
3. Seed treatment: Zinc sulfate can be applied to the paddy seeds before planting to provide zinc to the developing seedlings. The recommended rate for seed treatment is 10 g/kg seed.
Prevention of Zinc Deficiency in Paddy Nursery:
Preventing zinc deficiency in paddy nursery is easier than treating it. Here are some tips on how to prevent zinc deficiency in paddy nursery:
1. Use high-quality nursery soil that is rich in organic matter and essential nutrients.
2. Maintain the pH of the nursery soil between 5.5-6.5 to ensure optimal nutrient availability.
3. Avoid overwatering or underwatering the nursery as it can affect the nutrient uptake of the plants.
4. Use zinc-enriched organic and inorganic fertilizers to provide the required amount of zinc to the paddy plants.
In conclusion, zinc deficiency in paddy nursery can have severe consequences on the growth and yield of the crop. Therefore, it is crucial to manage zinc deficiency in the paddy nursery. The application of sources of zinc such as zinc sulfate, zinc oxide, and zinc chelates, and prevention of zinc deficiency through the use of high-quality nursery soil, optimal pH, and appropriate watering techniques can help manage zinc deficiency in paddy nursery.