Matters needing attention in the use of pesticides in melon seedling stage
Melon seedlings are very sensitive to many pesticides and are extremely prone to drug damage, so be extra careful when using insecticides. Pests such as tramps can use moats to dig a small ditch around the seedbed and cover it with impervious plastic sheet. then irrigation into Shennongbao or Amer to form an isolation zone, with good results (this method comes from farmers) Another method is to sprinkle some Shennongbao or Amer poisonous soil around the seedbed, and the effect is also good. If leaf miners appear, they can be sprayed with a strong stick or killing, and another method is to spray with 1.8% avermectin. If aphids appear in the seedling stage, you can add a bag of stress-resistant yield-increasing agent to Shunshengnong in the above two agents, so that leaf miners and aphids will be completely cured.
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Characteristics and functions of common fertilizers
In sandy soil, all phosphate fertilizer should be used as base fertilizer, half of nitrogen fertilizer should be used as base fertilizer, and the other half should be topdressing by stages in the process of growth and development, and then the amount of water should not be too large to avoid fertilizer leakage after flood irrigation. In clayey soil, under the condition of water irrigation, phosphate fertilizer and nitrogen fertilizer of 2 to 3 can be used as base fertilizer, nitrogen fertilizer of 1 to 3 can be applied by stages, and none.
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It is not advisable to use excessive pesticides to kill insects.
1. Chlorpyrifos is easy to cause drug damage when used in melon seedling stage, and it should be avoided in the flowering stage of some crops. two。 The pesticide of triazophos is not suitable to be used in sugarcane, which is easy to cause drug damage. 3. Because phoxim is easy to decompose in visible light, it should be avoided in watermelon growing period, radish and leafy vegetable seedling stage (even in growing period.
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