No specifications were planted. Most of the fruit growers planted grass on the orchard ground. In this way, the roots of the grass and fruit trees planted on the tree trays competed with one another for water and fertilizer, which was not conducive to the normal growth of fruit trees. Ordinary young orchards can only plant grass between the rows of fruit trees. The grass belt should be about 40 cm away from the outer edge of the tree tray; the orchards can be planted between fruit trees and between trees but not on the tree tray. grass.
Not paying attention to seedling management After many growers planted grass, they let themselves go. Some seedlings are very serious; some seedlings have formed a tall seedlings seedlings; some weeds have clumped down the grass seedlings and so on. After the general grass seedlings should be checked line by line to complete the seedlings, for the high density of the seedlings should be appropriate for seedlings, can be more appropriate for seedlings, and should be combined with cultivator, thoroughly remove weeds, in order to facilitate the growth of grass under the strong growth.
Do not strengthen water and fertilizer management Some growers believe that "grass can conserve water and increase fertilizer." Therefore, the management of fertilizer and water is relaxed, and neither the fertilized nor the water is applied to the planted grass. In general, in addition to the application of base fertilizer before sowing, in the seedling stage of grass, urea should be applied to 4 to 5 kg per mu. It can be combined with irrigation, irrigation, spraying or foliar spraying. When drought is lacking, it is necessary to timely fill the water.
Planted grasses do not castrate grasses grown in some orchards for long periods of time, and grow tall and do not castrate. In general, in the first year after sowing, because the weak root system of grass seedlings is small, it should not be castrated. From the second year onwards, castration should be conducted 3 to 5 times a year. When the grass grows to 40 centimeters in height, it can be castrated. In order not to use grass as a fodder for fertilization, it is better to cover the slashed grass on the tree tray in order to protect it. Perennial grasses are usually aged after 5 years. They are turned over in the fall to allow them to relax for 1 to 2 years and then sow the grass again.
The bearing structure, fixed film systems and installation of this greenhouse is relatively simple. And due to it, raw material and manufacturing costs are affordable. Except the high strength woven film is higher, other kinds of antidrop film are economical. In general, the comprehensive cost of film greenhouse is lower 30% ~ 50% than the same size and specifications of the other types of greenhouse.
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