Manganese is an essential micro-nutrient for plants, required for various physiological processes such as photosynthesis, respiration, and nitrogen metabolism. It helps in the prevention of chlorosis, which is the yellowing of leaves, as well as increasing the plant’s disease resistance. Manganese sulfate is a common source of manganese used for foliar applications in crops like wheat.
Suitable time for manganese sulphate spray in wheat:
The best time for manganese sulphate spray in wheat is during the vegetative growth stage when the plant is vigorously growing, and the leaves have yet to mature. Ideally, this would be between the period of tillering and stem elongation. During this time, the plant’s nutrient uptake is the highest, and applying manganese sulfate can help prevent deficiency symptoms such as wrinkled leaves, poor growth, and chlorosis.
Dose per acre of manganese sulphate:
The recommended dose per acre of manganese sulfate can vary depending on the soil type, crop, and stage of growth. Generally, a dose of 2-4 kg/acre can be applied via foliar spray, dissolved in water. Care should be taken not to exceed the recommended dose as it may cause leaf burning and have adverse effects on plant growth.
It is also essential to note that manganese sulfate spray should not be applied during flowering or fruiting as it may cause flower and fruit abortion. Also, spraying should be carried out during calm weather conditions to prevent drift and ensure maximum coverage and absorption by the plant.
In conclusion, manganese sulfate spray is an essential practice for ensuring the healthy growth and development of wheat crops. It is vital to apply the right dose at the appropriate growth stage to avoid nutrient deficiencies and improve yields. Growers should follow the recommended guidelines for application and exercise caution to ensure the best results.