The wheat will return to green one after another, weeds in the wheat field will also begin to recover. Early in the year, we will carry out the campaign to eliminate wheat, effectively control weeds and wheat to win light, compete for water, and compete for fertilizer. The winter weeds are dominated by broad-leaved weeds such as sow wormwood, leeks, and wheat grass. Spring weeds will be unearthed in succession. Some wheat field grasses have bromegrass and wild oats. Returning to the green period is an opportunity for chemical weeding. The details of the specific technical points are as follows:
1. The use of chemical herbicides should be before the jointing of wheat (before April 2), the daily average temperature is above 8OC, and sunny days without wind or breeze should be selected for sunny weather. When the sensation is insufficient, the amount of water must be increased.
2. For wheat fields dominated by sowing wormwood, leeks, wheat vasegrass, and Lebanese broad-leaved weeds, 40% of the mu will be used to kill 2 grams of +10% of benzene and 10 grams of Benzalkonium; 36% of Pentium can be used to wet the mu. Powder 5 grams, watered 30-40 kg uniform spray. Wild oats, wheat fields where bromegrass occurs, mu with 3% Shima oil suspension 25-30 ml with special additives 75-90 ml, watered 30-40 kg uniform spray. When using the drug, first use a small amount of water to mix the mother liquor, add water according to the amount and dilution ratio, and mix thoroughly and spray.
3, the use of chemical herbicides must be strictly in accordance with the correct use of pharmaceutical use of technical instructions, the first to be mixed into the mother liquid for secondary dilution, add enough water, not heavy spray, no leakage spray. According to experiments and a large number of field surveys, it is shown that the joint use of wheat in the jointing period will produce different degrees of phytotoxicity, and it will easily affect the growth of the crop, and the use of herbicides after the jointing of wheat is banned. Pay attention to prevent the liquid from drifting onto the sensitive crops during application; the pesticides should be thoroughly cleaned after spraying to avoid the use of phytotoxicity.
4. The timely removal of the land with poor chemical weed control and grass weeds should be timely.
Medical protective clothing refers to the protective clothing used by medical personnel (doctors, nurses, public health personnel, cleaning personnel, etc.) and people entering specific medical and health areas (such as patients, hospital visitors, personnel entering infected areas, etc.). Its function is to isolate germs, harmful ultrafine dust, acid and alkaline solutions, electromagnetic radiation, etc., to ensure the safety of personnel and keep the environment clean.
protective clothing,personal protection,disposable surgical protective clothing
Shanghai Rocatti Biotechnology Co.,Ltd , https://www.shljdmedical.com