2015年10月9日星期五

Greenhouse Cooling-Shade Netting




http://www.jlgreenhousesupplies.com

Farmers are quiet familiar with the greenhouse shade net. But if choose inappropriately, or to cover a long time, the greenhouse will relatively be in a weak light environment long time which will do side effect on plant growing and also do harm for vegetables growth. So how to choose and use greenhouse shade netting is a problem. 

Firstly, greenhouse shade net can be selected according to the kinds of vegetables. Currently black and silver-gray greenhouse shade net are available in the market. According to specifications of vegetable species suitable, farmers can choose the most suitable greenhouse shade netting. Black greenhouse shade net is usually suit for short-term cultivation of summer green. As for autumn and winter vegetables, gray greenhouse shade netting will be the first choice since gray greenhouse shade net help avoid the aphid. Eggplant seed or delayed planting better use both greenhouse shade netting and farm film.

http://www.jlgreenhousesupplies.com

As for the covering period, the greenhouse shade netting generally can be used from July to August. The light in other period is suitable for vegetable growing intensity. So greenhouse shade net is not necessary unless in heavy rainy days.

Besides, the covering time of shade should be well controlled. Generally speaking, greenhouse shade netting need cover in sunny days and uncovered in windy days or cloudy days. In addition to that, greenhouse shade net should be uncovered in the morning and night. If there are many rainy days with low temperature, greenhouse shade net can only be used during three to five days of plant recovering. If you use black greenhouse shade net, only at noon on a sunny day coverage. Specific time of greenhouse shade net use is at 10:30 am to 2:30 pm. Greenhouse shade netting can not close to covering films, otherwise the heat absorbed by the films will spread to the shed easily.

Shanghai JL Horticultural and Agricultural Supplies company supplies the reliable greenhouse shade net. Please have a look at the shade net products here.

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