Key points of spraying foliar Fertilizer on Wheat

Foliar fertilizer spraying during the growing period of wheat can timely supplement the nutrients needed for wheat growth and development, can play the habit of not being fertilized in the soil, and can obviously increase production, but foliar fertilizer spraying should also be mastered well. let's take a look at the main points of wheat foliar fertilizer spraying with Xiaobian.

1. Master the time of application

Spraying foliar fertilizer at booting stage and full heading stage of wheat can obviously prolong leaf function and increase single grain weight, which is the best time to spray fertilizer. In addition, because the noon temperature on a sunny day is higher, the water evaporation is larger, and the utilization rate of fertilizer is low, so the time of spraying fertilizer is best chosen in cloudy or sunny days before 10:00 or after 4 p.m., when the sun is not so strong. In case of rain within 24 hours of fertilizer spraying, it is necessary to spray again, and it is best to avoid flowering, so as not to affect the normal pollination and fertilization of wheat, thus reducing the seed setting rate.

2. Determine the type and amount of fertilizer

Phosphorus and potassium can promote the synthesis and transport of wheat nutrients, accelerate grain filling and enhance plant lodging resistance, while nitrogen can improve grain varieties and prevent premature senescence. Therefore, for wheat with prosperous growth or normal growth, it is best to spray 0.3% potassium dihydrogen phosphate solution, 150 grams of potassium dihydrogen phosphate per mu with 50 kg of water; for yellow and thin seedlings, add 1% 2% urea solution; for strong seedlings with thick green leaves and dense growth, you can spray plant ash extract, take 5 kg of fresh plant ash and 100 kg of clear water, stir for 14 hours, and spray the clarification solution.

3. Spray properly

Fertilizer must be sprayed evenly on leaves, stems or wheat ears, while wheat leaves should be sprayed evenly on both sides of the leaves. To spray evenly, the finer the droplets, the better. For the wheat fields with heavy weight and poor moisture, or when there is dry and hot wind during the fertilizer spraying period, increase the number of fertilizer spraying as appropriate.

4. Points for attention

First, there should not be too many kinds of mixed fertilizers, and in practice, do not talk about the application of a variety of foliar fertilizers together, and do not spray that tomorrow after spraying this one today. The application of foliar fertilizer has no cumulative effect, and a large number of varieties will affect the effect. Generally speaking, spraying 1-2 can be selected according to the local conditions. Second, the spraying time should choose sunny day before 10:00 or after 4 pm, spray it evenly in the leaves, stems, ears and other parts, should not increase the concentration and dose at will, so as to avoid negative effects. Third, it should be fully dissolved and sprayed with matching, so as to avoid exposure to the sun in strong light or rain.

The above is the introduction of wheat foliar fertilizer spraying, hope to help you, want to know more related knowledge, please pay attention to us.