Excavator Parts,Excavator Spare Parts,Excavator Engine Parts,Excavator Electrical Parts,Excavator Work Equipment Parts,Excavator Undercarrage Parts JINING SHANTE SONGZHENG CONSTRUCTION MACHINERY CO.LTD , https://www.stszcmparts.com
Strict drug use standard, scientific compounding liquid Soybean Soybean pre-emergence chemical weeding formula is: 48% chlorhexidine EC 70 ml 39% acetochlor EC 100 ml ten 70% fensulfuron soluble powder 2 g, water 30 kilograms, can spray one acre. When preparing mixed pesticides, first add the pesticides into the appliance according to the standard, then dilute the powder pesticides into mother liquor with a little water, add the equipment, and finally add the quantitative water. Do not add the water to the appliance before adding the liquid to prevent water. The medicine is not fully dissolved and the spraying is uneven, and the medicine is inferior.
Spray at the right time to ensure sufficient water. Soybean can not be sprayed immediately after spraying to prevent drought.
The spring breeze affects the efficacy, but it can't be too late. The correct method is: the plots with good sensation are sprayed 3 to 4 days after the sowing, and the plots with poor grievances are sprayed 4 to 5 days before the seedlings are unearthed. In the spring season, the general year is windy and rainy, and the soil is poor. Therefore, when applying pre-emergence weeding technology, we must pay attention to the sufficient amount of water. Take the air-jet sprayer pulled by the agricultural small four-wheel tractor as an example. Its weight is 175~200 kg, equipped with high-pressure nozzle, and the forward speed is the second-speed throttle, so that each tank can be sprayed with 6-7 mu to ensure the mu The amount of water is 30~35 kg. At the same time, depending on the soil moisture and climatic conditions, it is possible to refill the water at any time, 20~30 kg per mu to improve the efficacy.
According to local conditions, accurate drug selection Pre-emergence herbicide should be a pre-emergence herbicide. Its mechanism of action is: it can be absorbed by young shoots and young roots, moderately bonded to the soil, and has less fluidity in the soil. Guangshiling is the first choice for chemical weeding before soybean sowing. In addition, Guangmingling has a short residual period and is safe for the jaw. For example, when mixed with acetochlor or chlorsulfuron, the herbicidal effect is better. Soybean post-emergence chemical weeding is not suitable for stem and leaf treatment and drifting strong decoction, such as Ke Kuole, Jinghe Cao, 24d and so on.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】