Straw returning to pay attention to three aspects

In recent years, the technology of returning corn stalks to the field has gradually gained popularity. However, due to the fact that some farmers have not mastered this technology comprehensively, some problems have appeared in the farming, which have negative effects, which are manifested in the low emergence rate of wheat fields after some straw returning to the field. , Miaohuang, Miao weak, and even dead seedlings, the main reasons for analysis are the following aspects.

First, the carbon to nitrogen ratio is out of tune. The carbon-to-nitrogen ratio of the straw itself is 65-85:1, and the carbon-nitrogen ratio suitable for microbial activity is 25:1. The nitrogen in the soil after the straw is returned to the field is insufficient, so that the microorganisms compete with the crop for nitrogen, and the straw is slowly decomposed. Nitrogen deficiency and yellowing, weak seedlings, poor growth. Solution: After the straw is crushed, 50 kg of ammonium hydroxide or 20 kg of urea is applied to the surface of the crushed straw before rotary tillage or cultivated land, and then ploughed.

Second, the straw smash does not meet the requirements. Some of the smashed straw is too long, and its length is more than 10 cm, which is not conducive to ploughing and affects planting. Solution: Use large straw pulverizer, because the large straw pulverizer machine has large horsepower, not only the smashed straw is broken, but the smashed straw and soil are evenly mixed during rotary tillage, and the rotary tillage is deeper.

Third, the soil size pore ratio is unreasonable. After the straw is returned to the field, the soil becomes too loose, and the large pores are too much, resulting in running wind. The soil and the seeds can not be in close contact, affecting the germination and growth of the seeds, making the wheat rooted and not even hanging. So, how can we make up for the above defects and ensure stable production and high yield? In addition to taking the above measures, we must also pay attention to the following aspects: 1. Replenish nitrogen, phosphorus and potassium fertilizers. 2. Improve soil moisture. 3. Improve the quality of sowing. Straw returned to the plot to improve the quality of the planting. 4, timely suppression of watering. After sowing, the wheat is dried for one day, and the stone is pressed and pressed to make the soil dense, and the large pores are eliminated. The proportion of the pores is reasonable, and the seeds are in close contact with the soil, which is good for germination and rooting, and can avoid the phenomenon of wheat hanging roots. 5. Eliminate pathogens. Straw with disease can not be directly returned to the field, otherwise summer corn is prone to disease, such straw should be destroyed or applied after high temperature heap rot.

(flat smoke)

High Power LED Street Lamp

High-power LED street lamp is a kind of mainstream light source configuration widely used in road lighting project.The aluminum alloy surface of its radiator is treated with deep anodic oxidation, which can resist all kinds of harsh environment.In addition, its patented vertical natural convection heat dissipation structure, high heat dissipation efficiency, small volume, light weight, at the same time, it uses high quality long life LED packaging materials, LED light pass maintenance rate.

Technical parameters

High Power Led Street Lamp,Led Street Lamp,Led Street Lamp Bulbs,Led Street Lamp Price

Jiangsu chengxu Electric Group Co., Ltd , https://www.chengxulightings.com