The spring tube of wheat focuses on fertilizer and water.

The spring growth stage of winter wheat from turning green to picking period usually lasts 50 ~ 60 days, which is the key period of yield formation. Therefore, to do a good job in the spring management of wheat plays a very important role in improving wheat yield, of which the most important thing is to do well in fertilizer and water management. 1. In the period of returning to green, the weak seedlings in the wheat fields with lower middle yield and high yield, especially the weak seedlings without winter fertilizer, should be topdressing. Second, in the starting period, if the measures of fertilizer and water to promote growth are not taken or not enough for the weak seedlings of late stubble, de-fatting and weak seedlings and old and weak seedlings of middle and low yield wheat fields and high-yield wheat fields, heavy fertilization should be applied as early as possible and water should be watered during the period of returning to green. For the strong seedlings of precision sowing and high-yield wheat fields, on the basis of controlling the return to green, the rising period should be the main attack period of fertilizer and water. Third, in the jointing stage, for the strong seedlings and strong seedlings of precision sowing high-yield wheat fields, the strong seedlings planted by general cultivation method and the late stubble wheat planted by single-stalk cultivation method should be watered at the jointing stage and jointing fertilizer should be re-applied.