Certainly, here is an article about foliar spray and how it can increase the grain yield of wheat.
Wheat, being one of the most important cereal crops, contributes significantly to the global food supply. Achieving high yields of wheat is crucial to meet the increasing demand for food, especially in developing countries. One of the proven methods to increase the grain yield of wheat is by applying foliar spray.
Foliar spray refers to the practice of applying fertilizers, nutrients, or pesticides directly to the leaves of the plant. Unlike in soil application, foliar spray allows for quick absorption of the nutrient solution, making it readily available for the plant to use. Here are some important factors to consider when applying foliar spray to increase wheat yield.
1. Timing
Timing of foliar spray is crucial in achieving maximum benefit. It is important to apply the spray when the wheat plant is in the vegetative phase or before the flowering stage. This is because wheat plants absorb most of their nutrients during the vegetative phase. Applying foliar spray later might not give the same level of effectiveness as compared to applying during the vegetative stage.
2. Nutrient selection
It is essential to choose the right nutrient solution for foliar spray depending on the soil and crop requirements. Nitrogen, phosphorus, potassium, and magnesium are some of the common nutrients used for wheat. Additionally, foliar spray nutrients such as zinc, manganese, and boron have been reported to enhance productivity in wheat fields.
3. Application rates
Application rates can vary depending on the kind of nutrient solution used for your foliar spray. The recommended rates should be based on the package details or information provided by the manufacturer. Overuse of the nutrient solution may lead to phytotoxicity, which can damage the leaves.
4. Application method
The method of application can significantly influence the effectiveness of foliar spray. It is recommended that a sprayer or a knapsack sprayer be used to apply the nutrient solution. This ensures even distribution of the nutrient solution on the wheat plant. Also, the droplets from the sprayer should be small enough to avoid damage to the leaves.
5. Environmental conditions
The effectiveness of foliar spray can be highly influenced by environmental conditions such as temperature and humidity. It is advisable to avoid application during extreme weather conditions such as drought or heavy rain. The nutrient solution should also be applied early in the morning or late in the evening when there is no direct sunlight.
In conclusion, foliar spray has been proven to be an effective method of increasing the grain yield of wheat. However, it is essential to consider the timing, nutrient source, application rates, method of application, and environmental conditions to maximize its benefits. With the right selection and application of nutrient solution, farmers can increase wheat yields and enhance their overall productivity.