What solar term topdressing is good for wheat?

1, spring wheat: the first topdressing, that is, tillering fertilizer, can be carried out at the 3-leaf stage or 3-leaf 1 heart stage, and the fert

What solar term topdressing is good for wheat?

1, spring wheat: the first topdressing, that is, tillering fertilizer, can be carried out at the 3-leaf stage or 3-leaf 1 heart stage, and the fertilization amount should account for 2/3 of the total topdressing amount, and the topdressing urea can be 225-300 kg per hectare. After the jointing stage, topdressing can be carried out for the second time. At this time, topdressing of urea can be carried out per hectare 15-65438+. 2. Winter wheat: Before the plants begin to turn green, apply ammonium bicarbonate 100 kg per mu in furrow, 24 kg per mu after defoliation, and 5 kg per mu at the beginning of heading and flowering.

1. When is wheat topdressing good?

1, spring wheat

(1) The first topdressing time is 3-leaf stage or 3-leaf 1 heart stage. At this time, the tillering fertilizer is topdressing, and the amount of fertilization should account for 2/3 of the total topdressing amount, and 225-300 kilograms of urea can be topdressing per hectare, which can improve the tillering rate, promote the early emergence of strong seedlings and lay the foundation for increasing production.

(2) After the jointing stage, the second topdressing can be carried out. At this time, the topdressing is jointing fertilizer, and the amount of fertilization accounts for 1/3 of the total topdressing, and urea 105- 150 kg can be applied for topdressing per hectare.

(3) If tillering fertilizer has not been applied in the planting area, it is necessary to apply jointing fertilizer as early as possible and apply it again.

(4) Flower-preserving and grain-increasing fertilizer can be applied properly at booting stage. Under normal circumstances, only part of foliar fertilizer needs to be provided after topdressing jointing fertilizer, and no other fertilizers are needed.

2. Winter wheat

(1) Topdressing 1 Time: After spring, wheat seedlings enter the green turning stage, and topdressing is needed before the plants resume growth. At this time, ammonium bicarbonate 100 kg can be applied per mu for ditching, burying and watering.

(2) Top dressing for the second time: after the wheat enters the two-leaf stage, apply 24 kilograms of urea per mu and then water it.

(3) Top dressing for the third time: at the beginning of May (before heading and flowering), apply urea 10 kg per mu. At this time, topdressing is beneficial to increase yield and improve quality.

Second, how many seasons does wheat grow in a year?

Generally speaking, wheat can only be planted in 1 year/season, and the planting time of spring wheat and winter wheat is very different.

1, spring wheat

(1) The planting time is mostly from April to May every year, and the harvesting time is mostly 9- 10.

(2) The main producing areas of spring wheat in China are located in the north of the Great Wall, such as Hebei, Tianjin, Gansu, Heilongjiang and Inner Mongolia, and the ripening period is one year.

2. Winter wheat

(1) The planting time is mostly from September to June, and the harvesting time is mostly from April to May of the following year.

(2) China's main winter wheat producing areas are located in the south of the Great Wall, such as Shaanxi, Sichuan, Henan, Anhui, Hubei, Shandong, Shaanxi and other places.