Cuscuta is a parasitic plant with special physiological structure. It consists of no chloroplasts in the cells. It climbs on other plants with a vine-like structure, and protrudes from the contact with the host. It pokes into the host to reach the phloem and absorbs nutrients to maintain Raw, and further stored into starch granules in the tissue. Production is usually controlled by acetochlor or sec-butyl (also used in the soybean growth period) before sowing in soybeans, but the effect is not satisfactory. Practice has proved that the use of glyphosate to control soybean stalks has a good effect.
Glyphosate is a herbicide , and soybean has strong resistance to the drug, while dodder has poor resistance to the drug. Before grasping the damage of the dodder seed, use a 10% glyphosate solution 400 times to align the plant spray that is harmed by the dodder, and do not spray it on other plants. A large number of dodders die after 10 to 15 days after spraying. After 3 to 4 days after application, the soybean leaves began to yellow, and there were slight phytotoxic symptoms, but there was no significant effect on growth and development. After 7 days, the rate of yellowing plants no longer increased, and the leaves returned to normal growth after 10 days. Since the dodder is constantly occurring in the field, it needs to be treated once every two weeks after the first dose.
The magnetic drive design of the non dynamic seal makes the shaft end no longer need the dynamic seal, which ensures the leakage free operation of the pump. The solid and stable shaft support can ensure the accurate meshing of the gear when the pump is running at high speed, ensure the smooth operation of the pump, the high accuracy of metering and the long service life of the pump.
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