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2020开奖结果
2020开奖结果- 2020开奖结果-2020开奖结果-防虫网批发零售教大家怎么选购防虫网?
防虫网批发零售教大家怎么选购防虫网?
来源:http://www.sscha.net/ 日期:2019-11-28 发布人:admin
  济南2020年马会开奖结果网业有限公司告诉大家在防虫网批发零售时2020开奖结果都要注意哪些方面?怎么选择适合的防虫网?首先2020开奖结果要选择正规的防虫网厂家!
  Jinan Chunxuan net Industry Co., Ltd. tells you what we should pay attention to when we wholesale and retail insect prevention net? How to choose a suitable insect net? First of all, we have to choose the regular insect prevention network manufacturers!
  1、在大棚防虫网的选择上,要思索纱网的目数、颜色和幅宽等。
  1. In the selection of insect proof net in the shed, the mesh number, color and width of the net should be considered.
  假设目数太少,网眼偏大,则起不到应有的防虫效果;假设目数过多,网眼太小,虽能防虫,但通风不良,招致温度偏高,遮光过多,也不利于作物生长。
  If the mesh number is too small and the mesh is too large, the insect control effect will not be achieved; if the mesh number is too large and the mesh is too small, although it can prevent insects, the ventilation is poor, resulting in high temperature and too much shading, which is not conducive to crop growth.
防虫网批发零售教大家怎么选购防虫网?
  防虫网规格要根据情况选择,比如说,秋季很多害虫开端向棚内转移,特别是一些蛾类及蝶类害虫,由于这些害虫的体形较大,菜农可以运用目数相对较少的防虫网,如30-60目。
  The specifications of insect control nets should be selected according to the situation. For example, in autumn, many pests begin to move to the shed, especially some moth and butterfly pests. Because of the large size of these pests, vegetable farmers can use insect control nets with relatively few mesh, such as 30-60 mesh.
  但是关于棚外杂草较多,粉虱较多的,要根据粉虱体型的大小,防止其从网的孔眼中进入,建议菜农运用较密的防虫网,如40-60目的。正常情况下,防烟粉虱的尼龙纱网有40目就够用。过密的通风不好,定植后棚室里夜间降温困难。
  However, for those with more weeds and whiteflies outside the shed, it is necessary to prevent them from entering the mesh according to the size of the body of whiteflies. It is suggested that vegetable farmers should use a dense insect control net, such as 40-60 purpose. Under normal circumstances, 40 mesh nylon gauze net is enough to prevent Bemisia tabaci. Too dense ventilation is not good, and it is difficult to cool down in the shed at night after planting.
  但是,目前纱网市场消费出的纱网网孔是长方形的,40目纱网的网孔窄边可达30多目,宽边常常只需20多目,达不到阻挠烟粉虱的恳求,所以只能运用50-60目的纱网阻挠烟粉虱。
  However, at present, the gauze mesh consumed in the gauze mesh market is rectangular, the narrow side of 40 mesh gauze mesh can reach more than 30 mesh, and the wide side often only needs more than 20 mesh, which can not reach the request to block Bemisia tabaci, so only 50-60 mesh gauze can be used to block Bemisia tabaci.
  春秋时节温度较低,光照较弱,宜选用白色的2020开奖结果产品。夏季为了统筹遮阳、降温,宜选用黑色或银灰色。
  In spring and autumn, the temperature is low and the light is weak, so the white product should be selected. In summer, black or silver gray should be selected to coordinate shading and cooling.
  防虫网
  Insect proof net
  2、选用防虫网时,还要留意检查其能否完好。
  2. When selecting insect proof net, pay attention to check whether it is intact.
  有些菜农反映不少刚买的2020开奖结果产品都存在破孔现象,因此防虫网定做厂家提示大家,在置办时应该将网展开,检查能否存在破孔现象。
  Some vegetable farmers have reported that many newly purchased products have holes. Therefore, the custom-made anti insect net manufacturers remind us that the net should be expanded to check whether there are holes.
  接下来2020开奖结果再来了解一下,这种2020开奖结果产品细致有什么作用:
  Next, let's see what this product detail can do:
  1.能防虫
  1. pest control
  农2020开奖结果产品掩盖防虫网后可以免除菜青虫、小菜蛾、黄曲跳甲、猿叶虫、蚜虫等多种害虫的危害。在夏季安装,可阻挠烟粉虱、蚜虫等传毒害虫进棚,避免棚室内蔬菜大面积发作虫害。
  After covering the insect control net, the agricultural products can avoid the harm of many pests, such as cabbage worm, Plutella xylostella, yellow flea beetle, ape leaf worm, aphid and so on. Installed in summer, it can prevent pests such as Bemisia tabaci and aphid from entering the shed, and avoid large-scale pest attack of vegetables in the shed.
  2.调理棚内温度、湿度及土壤温度
  2. Adjust the temperature, humidity and soil temperature in the shed
  在春秋之际,用白色的中止掩盖,这样可以抵达很好的保温效果,能够减轻霜冻带来的影响。在炎热的时节,用白色防虫网掩盖温室大棚,早晨和傍晚的气温与露地持平,而晴天中午比露地低1℃左右。此外防虫网可阻挠部分雨水落入棚内,降低田间湿度,减少发病,晴天能降低大棚内的水分蒸发量。
  In the spring and Autumn period, the white suspension cover can achieve good heat preservation effect and reduce the impact of frost. In the hot season, the greenhouse is covered with a white insect net. The temperature in the morning and evening is the same as that in the open air, while it is about 1 ℃ lower than that in the open air at noon on a sunny day. In addition, the insect net can prevent some rainwater from falling into the shed, reduce the field humidity, reduce the incidence of disease, and reduce the evaporation of water in the shed on a sunny day.
  3.预防裂果
  3. Prevent fruit cracking
  在冬季,防虫网能够预防裂果的发作。果实发作皴裂与顶部放风口翻开以后冷风直吹果面有关。因此,在低温时节放风口处安装,应用致密的网眼,可以将冷风打散,降低冷风的劲头,同时又不影响棚室正常的通风换气。应用防虫网与放风口底部的挡风膜配合,还能够预防冷风直吹构成的果实皴裂以及叶片受伤。
  In winter, insect nets can prevent cracking. The cracking of the fruit is related to the cold wind blowing directly on the fruit surface after the top vent is opened. Therefore, when the vent is installed in low temperature, the dense mesh can disperse the cold air, reduce the strength of the cold air, and at the same time, it will not affect the normal ventilation of the shed. The application of anti insect net and the wind proof film at the bottom of the vent can also prevent the fruit chapped and the leaves injured by the cold wind.
  以上就是由济南2020年马会开奖结果网业有限公司告诉大家在选购防虫网时2020开奖结果都要注意哪些的介绍,希望可以帮到你,想要了解更多请点击官网http://www.sscha.net
  The above is the introduction of what we should pay attention to when purchasing insect prevention net from Jinan Chunxuan net Industry Co., Ltd., hoping to help you. For more information, please click the official website http://www.sscha.net
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