Wheat is an important field crop in China. The problem of pests and weeds in wheat planting has always been the most troublesome. Then how can the pests and diseases of the wheat field be rationally removed? This article will introduce the prevention and control methods of pests and diseases in the wheat field in detail.
After paying attention to the dynamic re-greening of wheat field pests, some cockroaches and golden worms in some wheat fields will also cause cockroaches to kill wheat. Pay attention to the field observation, once the insects are found, spray urinary 20% cyanose marathon 1500 times liquid after 3 pm, treat red spiders, wheat leaf bees, etc., and mix the appropriate amount of cytokinin or humic acid foliar fertilizer. Helps accelerate the return of wheat.
The prevention of root rot and sheath blight has been more common in recent years, and the plots with low topography and excessive application of nitrogen fertilizers are particularly biased. After re-greening, combine with pest control to spray 2 times of 25% myclobutanil EC 2000 times solution (16 grams per acre of preparation) or 40% more · Fu · bromoxynil wettable powder 1500 times solution (100 grams of preparation per acre), jointing Spray again before and after the period, pay attention to the nozzle to the base of the wheat seedlings.
Reasonable removal of weeds As the wheat grows green, the weeds in the field will continue to grow. In the wheat field where no pharmacy has been removed before winter, measures must be taken in time.
According to the field dominant weed species and its resistance to the selection of suitable agents and formulas: wheat field dominated by resistant broadleaf weeds such as wormwood, piglet, leek, etc., can choose oxazinone, Maixi (2.5%) Diflufenacil + 3.3% oxasulfuron), Mai Shida (0.6% diflufenacil + 45.3% 2,4-diisooctyl ester), flufenoxyacetic acid, etc. Dimethyltetrachloro (or 2,4-D butyl ester) is less effective in controlling broad-leaved weeds with low cost and low cost; in northern wheat fields dominated by buckwheat and maiden, spraying prior to jointing is preferred (7.5 % acetochlor), acetyl oxalic acid has a protective effect on most grass weeds, and great energy (2.5% acetyl oxalic acid + 2.5% oxazolin) has a good effect on hard grass and valerian.
Appropriate and appropriate dosage: Most herbicides are suitable for use in the period of 2~5 leaves of weeds and before wheat jointing. Chlorfluoxetine is the only herbicide that can be used after wheat jointing. The dosage should be based on weed size and density, paying attention to the safety of wheat and its crops when used in large doses.
Mechanical parts, also known as Mechanical Components, are the basic components that make up machinery, and are inseparable individual parts that make up machinery and machinery.
Mechanical parts are not only a subject of research and design of mechanical basic parts in various equipment, but also a general term for parts and components
The mechanical parts are very diverse, we are good at Processing According to Drawings. Such as: main shaft, piston rod, transmission shaft, pin, positioning pin, bushing, etc.
Spline Shaft,Mechanical Components,Precision Drive Shaft,Custom Mechanical Components
Dayue Precision Technology (Dongguan) Co., Ltd. , https://www.dayuechn.com