What foliar fertilizers can be sprayed in the late growth stage of wheat?

Spraying foliar fertilizers in the late stage of wheat cultivation can extend the functional period of canopy leaves, promote the transport of photosynthates to the grains, increase the number of filled grains, and raise the 1000-grain weight and quality, generally increasing yield by 5%-10%. The commonly used foliar fertilizers include the following:

1. Yemianbao contains humic acid and trace elements, which can enhance the stress resistance of wheat and supplement trace elements. Spray once each at the booting stage and after heading and flowering, 7-10 milliliters per mu each time, add 2% urea, and dilute with 30 kg of water for spraying. It can generally increase the 1000-grain weight by 1-2 grams and increase yield by 5%-6%.

2. Huimanfeng is prepared from various humic acids and multiple nutrient elements, etc. It can activate nutrient elements in the soil, promote crop absorption of nutrients, and directly provide nutrients, and is especially suitable for application on third-category seedlings. At the booting stage of wheat, use 100 milliliters per mu, add 30 kg of water, and spray. Do not mix-spray with pesticides or chemical fertilizers, and do not spray Huimanfeng within 48@#@245@#@ before and after spraying pesticides.

3. Mixed liquid of urea and potassium dihydrogen phosphate. This is the earliest widely used foliar fertilizer, with effects such as supplementing nutrients, strengthening stalks to prevent lodging, and increasing grain weight. After wheat heading and flowering, use 250 grams of urea and 100 grams of potassium dihydrogen phosphate per mu, add 40 kg of water (add 5 kg of water for mist spraying), and spray.

4. Multi-element trace fertilizer. According to the trace element content of the soil, reasonably prepare and spray it at the booting stage, which can reduce floret degeneration, increase the seed-setting rate, and increase grain weight.