What is sedge:
苜蓿(mù xu) grass, this name is relatively new to us, but in fact we are no stranger to it. It is the lucky grass we often say. Valerian, also known as clover, four-leaf clover, is a perennial herb of the genus Leguminosae. It usually has only three small leaves, the leaf shape is heart-shaped, and the leaf heart is darker. Part is also heart shaped. Among 100,000 psyllium, you may only find one is a four-leaf clover, and the chance of chance is about one in 100,000. Therefore, the four-leaf clover is an internationally recognized lucky symbol.
The growing area of ​​alfalfa is getting bigger and bigger, and the removal of alfalfa is an important task in the management of polders. Over the past artificial weed, cumbersome, laborious, expensive, and now has high herbicidal weed control with herbicide efficiency, effectiveness and stability, and low cost. With the development of animal husbandry economy, more and more farmers and herdsmen prefer to use herbicides to control weeds in farmland. However, the use of herbicides is technically demanding. Improper use can cause phytotoxicity to crops, so use them correctly. Herbicides are very necessary. Valerian is a special herbicide for Putian.
How to use valerian net:
First, the characteristics
It can be used before sowing, before sowing, before the seedling, and after harvesting.
Second, the amount of medication
Under normal conditions, the recommended dose is l00 ~ l30g / acre, spray evenly on water l0 ~ 30 kg.
Third, medication technology
There are many factors influencing weeding in the field. It is necessary to choose different formulas according to different soil, lyrics, grass phase, temperature and crop cultivation period, so that we can achieve good weeding effect.
l, the leaf stage of the seedling: the crop can be used throughout the growing season, and the three-leaf compounding period is the best application period.
2. The leaf stage of the grass: the weeds have the best effect before the 3 leaf stage, and have good effects on grasses and broadleaf grasses. If the 5 leaf stage is good, the effect is also very good. It is greater than 5 leaf stage and can inhibit its growth. It can still kill Xanthium, Amaranth, and Wild Buckwheat. It is recommended to increase the dose to l50g/mu above the weed 3 leaf stage.
3, the amount of medication: the normal recommended dosage is l00 ~ l30g / acre, - used to l50g / acre, only slight phytotoxicity to crop seedlings, but does not affect the growth, no impact on the harvested crops.
4, grass density: If the grass density is not large, you can use the normal dose, such as grass density is very large, it is recommended to increase the dose to l50g / acre.
5, grass phase: If the field is dominated by broadleaf grass, you can use valerian net. For example, the grass is dominated by grass weeds or grasses are dense, and other herbicide weed herbicides can be mixed. 5 to 7 days after the net application of valerian - the symptoms of phytotoxicity were observed, the grass turned red, the enamel part became brown, and it died completely after 14 days.
6. Lyricism: The use of herbicides requires good sensation, the relative humidity of the soil is 70% to 90%, and the air humidity is 60% to 70%.
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