1. Control wheat yellow dwarf disease, bush dwarf disease. These two diseases are viral diseases transmitted by the slugs and ticks. There are two peaks of transmission: one is after sowing seedlings, and the other is after early spring returning to green. The prevention and control methods are: (1) spraying pesticides after emergence of wheat, and approaching plots with many weeds such as roadsides, ridges and ditches, idle land, orchards, etc., and spraying insecticides to eliminate insect pests as soon as possible. (2) Remove the weeds in the field and destroy the environment in which the pests live. The method is: to spray 10 meters of large-scale isolation zone, a small field to spray. Spring will be sprayed again after spring.
2. Weed autumn rule. (1) Control of Malicious Weeds in Wheat Fields: Malicious weeds include Bromegrass, Aegilops taurica, A. aequalis, and wild oats. Because of its high reproductive capacity and poor control, it is called a vicious weed. These grasses must be controlled in autumn. The method is: From late October to early November, 2-4 leaves of weeds and 3-5 leaf stages of wheat are selected. No-wind and high-temperature consecutive sunny days are sprayed at noon. Yes, it can only be used in the control of wheat. (2) Broad-leaf weed control. The Hengshui area is mainly leeks, sow worms, and swine fever. Due to the long-term use of tribenuron-methyl herbicides, most of the plots have developed resistance. 10 grams of 10% tribenuron-methyl, or even 20 grams, can not be used. In recent years we have done a lot of experiments. The medicines available before the winter are: 1 control leeks with 5.8% Maixi 2 bags, for two barrels of water, can spray a mu of land; 2 to prevent sophora wormwood with 40% flufenoxime, mu 4 grams. Mu bucket 2 buckets of water; 3 leeks + sow wormwood mixed land can be mixed with these two, you can also directly use the compounding agent - 55% ku, the composition is tribenuron + vetoxone + 2 A 4 sodium chloride; 4 pigs, commonly known as wet barman, with 20% of its long-term control effect is good.
3. The problem of wheat seed yellow before winter. One is the lack of water at the bottom, and the other is the lack of nitrogen fertilizer at the bottom. After a large amount of straw is returned to the field, a large amount of nitrogen is required to decompose. After the nitrogen deficiency in the soil, the wheat will turn yellow. The solution is to spray 0.2% urea or other nitrogen-containing foliar fertilizer once every 5 days for 2 times. When pouring frozen water, apply 5 kg of urea or 35-40 kg of ammonium bicarbonate.
4. Pour frozen water. Frozen water can play a role in safeguarding the safe winter for wheat and fighting for the initiative in the following year. The frozen water time must be kept at a temperature of 2°C to 3°C per day. The time is generally from late November to early December.
romatographic and use double-antibodyromatographic and use double-antibodysandwich method to detect antigen. Whenthe concentration of antigen in specimen ishigher than the minimum detection limit, theviral antigen will form complexes withlabeled antibodies first. Under chromatogra-phy, the complexes move forward along thenitrocellulose membrane till captured bypre-coated monoclonal antibody ofindetection zone.Through the visible color tointerprete the test results.
Antigen Test Kit,Disposable viral antigen detection kit,Antigen antibody test kit,Disposable virus sampling tube
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