The Best Time for Wheat to Return to Green Fertilizer

According to the growth and development law of wheat, topdressing before spring is the most suitable.

The longest time for winter wheat to turn green manure is only 44 days. This time is a good time to fertilize. Therefore, topdressing wheat before or within 1 1 day in the first month after the year is the appropriate time and the best time to topdress green manure. Remind everyone that it is suggested that wheat green manure should not be topdressing after beginning of spring to avoid delaying wheat harvest.

Wheat is in the jointing stage of turning green after the rain, and the absorption of nutrients in the later stage will promote the vigorous growth of wheat after the jointing stage, which is difficult to control and cause lodging in the later stage. Promoting the slow aging and maturity of wheat will delay the harvest period of wheat, affect the plumpness of wheat grains and affect the yield and quality of wheat. Therefore, wheat green manure must be topdressing before beginning of spring, which is the best fertilization time.

Fertilization technology of wheat

Base fertilizer is essential for wheat to emerge early, strengthen seedlings before winter and increase effective tillering. Adequate base fertilizer is the premise of strong stalk, strong ear and grain increase. At present, in many areas, there should be enough nitrogen in the base fertilizer to reduce the influence of nitrogen absorbed by straw decomposition on the nitrogen requirement of wheat. Generally, farmyard manure 1 ton, diammonium sulfate 20 kg, urea 10 kg and potassium sulfate 25 kg can be applied per mu.

For wheat fields lacking watering conditions, but with sticky texture and strong fertilizer conservation, all fertilizers can be applied as base fertilizer at one time. That is, enough farmyard manure and 2: 3 NPK fertilizer are scattered on the ground, and then deep ploughed. After ploughing, the remaining fertilizer is sprinkled on the hoe and then raked into the soil. In this way, the whole tillage layer can be mixed with fertilizer, which is beneficial to the formation of strong seedlings in the early stage and can also prevent premature aging of wheat in the later stage.