Spring is here, and now is the best time to plant alfalfa. However, in the process of growing, it is inevitable that there will be a current situation of alfalfa.
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Use fully decomposed organic fertilizer as the base fertilizer, add 20 kg of lime powder per cubic meter of manure, mix thoroughly and boring, and then apply it deep in the field to reduce the spawning of the fly and effectively reduce the damage. It also advocates the use of industrially processed organic fertilizers and organic and inorganic compound fertilizers that are marketed.
Choose early spring or after harvesting the leeks, sprinkle the ash (not drenched) on the surface of the oysters, sift through the ash to mix the ash into the soil, or ditch (in the case of roots) into the trench, cover the soil cover strict. It is not conducive to the life of cockroaches, so it can play a preventive role, loosen the soil, increase the content of phosphorus and potassium fertilizer, and make the leeks seedlings grow stronger and increase the yield.
During the growth of amaranth, 15-25 kg of ammonia per acre is used, diluted 80-100 times, rooted or washed with water, all have the effect of killing cockroaches. In combination with watering, 15-20 kg of ammonium bicarbonate can be applied per acre with water, which can also effectively kill larvae.
Every time you harvest a leek, immediately pour the leeks with fresh urine. When the soil is wet, it is not water. When the soil is dry, it is 50% water. After pouring, grab a grass ash guard. In this way, the soil surface is often dry, and small eggs cannot hatch. Suitable for small-scale implementation of farmers.
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