What are the key points of high-yield wheat planting techniques? Focus on these seven points!

Wheat is divided into winter wheat and spring wheat by sowing time, and winter wheat is the main one in China. Winter wheat sowing time is about in late September to early October, spring wheat sowing time after the Spring Festival. At present, this is the sowing season of winter wheat, so what are the key points of wheat high-yield planting technology? Focus on these seven points!

I. Pay attention to selecting high-fertilizer plots

High-yield and high-quality wheat varieties require soil nutrients to be comprehensive and sufficient to meet the needs of high-yield cultivation, so it is advisable to select plots with high soil fertility and good irrigation conditions, increase organic fertilizer and adopt formula fertilization techniques.

II. Pay attention to late sowing at appropriate time

According to the variety characteristics, determine the appropriate basic seedlings. To prevent excessive seeding, resulting in passive management in the later period.

III. Pay attention to preventing lodging and re-applying jointing fertilizer

Some of the promoted high-quality wheat varieties are not resistant to lodging, especially for wheat fields with large populations, chemical control treatment should be carried out once before returning to green and jointing, and paclobutrazol or Maiyefeng can be sprayed. It is necessary to reapply jointing fertilizer, control the formation of redundant falling ears, and promote large ears and many grains.

IV. Pay attention to watering grouting water, wheat yellow water and spraying foliar fertilizer.

Pouring grouting water well plays an important role in increasing grain weight and preventing dry and hot wind. Dry weather, the use of wheat yellow water, conducive to the next crop interplanting, to prevent premature aging. In the early and middle of May, combined with the prevention and control of diseases and insect pests, spraying 2~3 times of foliar fertilizer, such as 0.2%~0.3% potassium dihydrogen phosphate, can reduce the damage of dry hot wind and increase production obviously.

5. Pay attention to the prevention and control of pests and diseases

Generally speaking, high-quality wheat is more susceptible to diseases and insect pests, such as wheat sheath blight, powdery mildew, aphids occur earlier and heavier than conventional varieties. Early prevention and control should be carried out according to forecast.

VI. Spray once wheat treasure

When wheat is just broken and about 60%~70% before heading and flowering, wheat is sprayed once to activate biological enzyme activity in wheat, promote the development coordination of female and male organs, enhance photosynthesis of functional leaves, obviously reduce empty grain rate, improve seed setting rate and 1000-grain weight, thus achieving the effect of increasing yield.

VII. Drought Resistance and Yield Increase

1. Deep and shallow rotation tillage, storing water with soil

Deep ploughing can break the plough bottom, increase water permeability, increase water storage, promote root penetration and expand root absorption range, and improve water and fertilizer use efficiency. However, deep ploughing must be adapted according to the time of the land. Generally, deep ploughing should be carried out in the year of early soil preparation, more precipitation and sufficient moisture content. The ploughing depth is 22-25 cm. After ploughing, harrowing and leveling are carried out. After ploughing, there is little rain and drought, which often leads to serious loss of moisture due to soil incompleteness. Practice has proved that in 3-4 years, dry wheat can be deeply ploughed for one year when it meets sufficient moisture, and then shallowly ploughed for 2-3 years, which can not only achieve the purpose of deep ploughing and soil improvement, but also increase the opportunity of sinking soil to preserve moisture. It is an important measure for increasing yield of dry wheat.

2. Increase fertilizer application and regulate water with fertilizer

Dryland wheat fields should be applied as much organic fertilizer as possible, and inorganic fertilizer should be applied as much as possible, especially phosphorus fertilizer, so as to improve soil fertility, improve water storage and fertilizer retention capacity and water utilization rate. For general plots, 2500- 3000kg organic fertilizer, 50kg ammonium bicarbonate and 50kg calcium superphosphate can be applied per mu, and appropriate potassium fertilizer and trace fertilizer can be applied; if the soil fertility is poor, standard nitrogen fertilizer 40- 60kg and phosphorus fertilizer 50- 100kg can be applied continuously per mu within three or four years. High-yield wheat field in dry land can adopt the fertilization method of "one shot", that is, all fertilizers combined with soil preparation are applied to the soil at one time as base fertilizer, among which nitrogen fertilizer should be applied deeply and phosphorus fertilizer should be applied shallowly to cultivate strong seedlings before winter.

3. Use suppression to reduce water evaporation

Suppressing at single ridge stage could increase the number of secondary roots per plant, improve the ability of water absorption, destroy surface capillaries and reduce water evaporation.