Sanchuan Town, Yongsheng County is mainly planted with broad beans in winter. It has been used for more than ten years in the control of weeds. Due to the limitation of the herbicide use method, the broken rice that begins to grow after the emergence of broad beans Some broad-leaved weeds such as cockroaches, crickets, and big nests (locally known as horse peas) have poor control effects. Some plots and even weeds grow taller than broad beans and grow well, seriously affecting the growth of broad beans. When I was in the village to guide my work, I often met with the masses. I asked if there was any special medicine for controlling broadleaf broadleaf (locally known as broadleaf) weeds. With this problem, we did a targeted test this year: in mid-November to late The seedlings are not very high, and when the broadleaf weeds have grown from five to seven leaves, 48% of the weeds are sprayed evenly on the weeds by 80-100 ml per acre and about 50 kg of water. Do not re-spray or spray. If the pesticide is repeatedly sprayed on the leaves of broad beans, brown spots will appear, and temporary growth stagnation will occur, but growth will generally resume. Broad-leaved weeds inhibit photosynthesis and water metabolism after being treated, causing weeds to die.

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