Sure, here is an article on control of manganese deficiency in wheat crop:
Manganese (Mn) is an essential micronutrient for the growth and development of wheat crops. It plays an important role in photosynthesis, enzyme activation, protein synthesis, and hormone regulation. However, due to the alkaline nature of the soil, Mn is often deficient in wheat plants. Manganese deficiency can lead to stunted growth, reduced yield, and lower grain quality. Therefore, it is important to control Mn deficiency in wheat crops to ensure maximum productivity.
So how can Mn deficiency be controlled in wheat crops? Here are some management practices to consider:
1. Soil Testing: The first step in managing Mn deficiency is to conduct a soil test to determine the pH level and the availability of nutrients in the soil. If the pH is too high, it can tie up Mn and make it unavailable to the plants. Soil pH should be maintained between 5.5 and 6.5. If the soil pH is too high, acidifying the soil with sulfur or acidifying fertilizers can help make Mn available for the wheat crop.
2. Fertilization: Fertilization is an important practice in controlling Mn deficiency. Manganese sulfate can be added to the soil as a foliar spray or as a soil amendment. The application rate of Mn fertilizer depends on the severity of Mn deficiency. In general, 10-20 pounds of Mn per acre in the form of Mn sulfate or Mn oxide can be added to the soil.
3. Crop Rotation: Wheat crops should be rotated with leguminous crops like soybean, peas, and beans, as these crops have the ability to fix nitrogen in the soil. Nitrogen fixation can help reduce Mn deficiency in the soil by increasing the activity of microorganisms that convert Mn into plant-available forms.
4. Seed Treatment: Seed treatment with Mn can also be done to control Mn deficiency in wheat crops. Mn can be applied as a seed coating or as a seed dressing. The application rate of seed coating treatment depends on the severity of Mn deficiency in the soil.
5. Irrigation: Proper irrigation is important to control Mn deficiency in wheat crops. Excessive moisture can cause leaching of Mn from the soil, while water stress can reduce the uptake of Mn by plants. Therefore, irrigation should be done at the right time and in the right amounts to ensure the optimum availability of Mn to the plants.
In conclusion, Mn deficiency in wheat crops can be controlled through careful management practices. Soil testing, fertilization, crop rotation, seed treatment, and proper irrigation can help provide the necessary Mn to the plants and ensure maximum productivity. By following these practices, farmers can prevent Mn deficiency and achieve better yields and higher grain quality.