Can not use industrial film
Membrane is broadly divided into industrial membranes and agricultural membranes. It is important to choose agricultural membranes for vegetable production. Do not use industrial membranes because some industrial membranes contain some toxic substances, causing damage to crops and even causing outbreaks. Absolutely. The agricultural film is further divided into a transparent film, a black film, a silver-gray film, etc., and according to the season, the type of the crop, and the purpose of the covering, a different film is selected. Such as shed vegetables to increase temperature and moisture for the purpose of selecting the transparent membrane; to reduce the temperature, weeding and moisturizing for the purpose of selecting the black membrane; anti-mites available silver gray film.
Do not ignore water management
Some people think that covering the film has a water retention effect, neglecting the water management, in fact, the water must be protected. Therefore, the moisture in the soil must be sufficient before the mulch is covered. This is the key to ensure the normal growth of seedlings and seedlings. On the contrary, if the soil is heavy, excessively watery, and lacks oxygen, it will be detrimental to seed germination and root growth. Such plots should be dried first, and when the humidity is appropriate, they should be covered with plastic film. Otherwise, the roots will be destroyed.
Do not blindly sowing in advance mulching film sowing can not be premature, because the cover film is good, good sensation, rapid emergence, met with frost frost, resulting in destruction of seedlings, to determine the sowing date must consider three factors: First, seedlings to the environment The requirements of the conditions; Second, the local final frost period: The third is the number of days from sowing to emergence. In the case that all three conditions are suitable, it is best to seed before the final frost period before sowing, so that it will be beneficial to increase production and income.
Avoid blindly applying fertilizer
Some vegetable farmers blindly increase the amount of fertilizers for high yields. In particular, simultaneous planting or application of planting will not only cause waste, increase costs, and even cause seedlings to be destroyed. Some vegetable farmers believe that the cover film can increase production, use less agricultural fertilizer, and use less fertilizer, resulting in later defermentation and affecting yield. When applying base fertilizer, no matter organic fertilizer or chemical fertilizer, it is necessary to fertilize the whole layer, and deepen 20-30 centimeters deep and fully mix with the soil to prevent shallow application on the topsoil. The amount of fertilizer used must be accurate, not too little, and the applied organic fertilizer must be fully decomposed.
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