Methods and matters needing attention of topdressing wheat in spring

After the wheat has gone through the overwintering period, after entering the spring, the temperature gradually rises, and the wheat begins to return to the green stage, which is the key period for the management of wheat in spring. For the management of wheat returning to green stage and jointing stage, it is very important for the follow-up spike, and fertilization is the top priority in spring management, so how to topdressing wheat in spring? Let's take a look.

1. According to the growth of wheat seedlings

After a winter, there are some differences in the growth of wheat seedlings in different regions and different plots. If the color of wheat seedlings is bright green and there is no miss, in general, less nitrogen fertilizer can be applied, or topdressing can be carried out later. Generally, 8-10 kg per mu can be applied. If the growth of wheat seedlings is poor, the plant has few tillers, and yellowing occurs at night because of freezing injury, we can apply more nitrogen fertilizer, 15-20 kg urea per mu, 5 kg superphosphate and 5 kg potassium chloride each, so as to stimulate wheat to turn green on the one hand and improve the panicle rate of tillers on the other hand.

2. According to soil fertility

Different plots, the soil fertility will be different, which can be seen from the growth of wheat, if it is a plot with good soil fertility, sufficient base fertilizer before sowing, plus the application of organic fertilizer, or soil testing formula fertilization, then the wheat growth is good, safety can also be read, less nitrogen fertilizer can be applied in spring, generally 8-10 kg per mu. If the land with poor soil fertility, insufficient application of bottom fertilizer, poor growth of wheat, weak seedlings and yellow seedlings, it is necessary to apply more fertilizer, with 20 kg of urea, 8-10 kg of calcium superphosphate and 8-10 kg of potassium chloride per mu to meet the nutrient needs of wheat for subsequent growth.

3. Points for attention

When topdressing, it is recommended to choose a sunny day, and the time can be chosen around noon, but some farmers will choose to topdressing before rain, watch the weather forecast, and sprinkle urea on the wheat field before rain, so the fertilizer efficiency will be much lower. So you need to pay special attention. If the wheat field with irrigation conditions, after topdressing, can be properly watered, on the one hand, in order to supplement water, on the other hand is not conducive to fertilizer absorption, do not flood for a long time, the right amount of water can be. For wheat fields without irrigation conditions, it is not recommended to spread fertilizer, but can take the method of deep application, the depth is generally about 5-6 cm, remember to cover soil in time after fertilization to improve the utilization rate of fertilizer. Topdressing should not be excessive, otherwise it will be counterproductive, on the one hand, it will cause fertilizer damage, and on the other hand, it will increase costs and not increase production.

The above is the introduction of wheat topdressing methods and matters needing attention in spring. I hope I can help you. If you want to know more about it, please follow us.