1 shed body skeleton maintenance and maintenance

Because the greenhouse is in high temperature and high humidity environment all the year round, the anti-corrosion ability of load-bearing parts has become one of the important factors affecting the service life of the greenhouse. Therefore, it is necessary to maintain the main skeleton of the greenhouse regularly.

1.1 metal skeleton

1 For the skeleton connected by bolts, always check the tightness of the bolts to prevent the looseness of the bolts caused by frequent use. The welding skeleton should check whether the solder joints are cracked. Once found, it should be repaired immediately. For some metal parts that are not galvanized, anti-rust paint can be applied regularly to extend the life of the structure.

2 The steel frame is convex or the entire frame is wrapped with cloth to prevent the film from being worn. The method is that the waste cloth strip or the non-woven strip can be wrapped around all the steel pipe brackets in the greenhouse, and the steel pipe is separated from the shed film to avoid contact between the shed film and the steel pipe, and the cloth strip is fixed by the nylon rope to avoid the cloth strip. Shedding; its role is to prevent damage to the enamel film, and second, the steel pipe will not be exposed to direct sunlight, causing the temperature to be too high to avoid the risk of wrinkling or rupture of the shed film.

1.2 bamboo wooden skeleton

Because of the high humidity and high temperature in the greenhouse, it is easy to make the wood skeleton moldy and rot, thereby reducing the load-bearing capacity and prone to breakage. Therefore, it should be treated with anti-corrosion treatment before use, and it should be regularly inspected and repaired during use. The condition should be reinforced immediately. It is also forbidden to approach the fire source and the skeleton to avoid causing damage caused by fire.

1.3 greenhouse shed shed column

In the greenhouse, the main function of the column is to support the arch and prevent it from bending. Restricted by the construction of greenhouses, once the columns in the shed are broken, it is more difficult to replace the columns. Therefore, we recommend that if there is only a slight break in the column, it can be maintained by adding a reinforced short column to the side. In addition, for the pillarless greenhouse, as the age of the greenhouse increases, the skeleton of such greenhouses is prone to deformation. It is recommended to add pillars at the corresponding positions in the shed to support the deformed skeleton.

In addition, after the greenhouse is used for one season, the wheat straw and stalks on the roof will inevitably rot, and the wall will be denuded or even collapsed. It should be repaired in time to avoid causing greater damage to the greenhouse. After the rotten and sunken roof has occurred, it is necessary to replace the wheat straw and the straw in time to prevent the summer rain from collapsing. For the denuded wall to be repaired with mud, it is possible to use white ash paste and straw to mix the wall to prevent rain, and to reflect and kill.

2 Maintenance and maintenance of ancillary facilities

2.1 Roller maintenance

After a winter use, the roller blinder can be repaired during the summer free time. Check the operation of each transmission part, if it is affected, it should be replaced in time; check the tightness of each fastener and find that the looseness should be tightened in time. Relatively speaking, the rain is relatively high in summer, and the roller blind machine should be shielded to prevent sun and rain, avoid rust, and add lubricating oil to the transmission part of the main engine to prolong the service life.

2.2 shed film maintenance

1 Under normal use, damage to the shed film is also difficult to avoid, but attention should be paid to timely repair. The repair method can be used to bond the tears with a scotch tape, or it can be repaired with a special film glue, or a new film can be covered in the damaged area.

2 timely film, the choice of PVC non-drip anti-aging film used in greenhouses, generally can be used for two seasons, pay attention to protection. When the greenhouse is not in use, the film should be stored in a cool place in time, and the film should be carefully removed from the greenhouse after harvesting. After removing it, gently wipe it with a soft cloth and a soft brush. Do not soak and rub for a long time. After washing, dry it in a cool, ventilated place and roll it into a roll collection. Do not stack them to prevent them from being damaged or stuck. When storing, do not place heavy objects on it and pay attention to prevent rat.

3 If it is not collected, the sunscreen material such as non-woven fabric or sunshade net should be covered on the shed film in summer.

2.3 Receive straw curtains, insulation

Greenhouses generally do not need to cover grass curtains and heat insulation in May. At this time, the straw curtains or insulation should be put away. For some damaged straw curtains or insulation, it must be repaired in time, then choose to dry in the sun, dry and then roll, and store in a dry and ventilated place. After you have finished it, you should also pay attention to the inspection and find that it is re-drying after being wet. If you have a free house, it is best to hide it in a dry place indoors. Be sure to maintain the insulation and straw curtains during the period of non-use. In order to prolong the service life and heat preservation, the number of times of replacing greenhouse insulation facilities can be reduced, thereby reducing costs and reducing farmers' losses.

2.4 Maintenance of irrigation system

Irrigation and fertilization system maintenance must first check whether the water supply pipeline runs, flies, drops, leaks, the integrity of the valve, drip irrigation and sprinkler nozzles fall off and block. Regularly maintain the water treatment system to ensure that the equipment is in good operating condition. At the same time, the maintenance of the power supply and distribution system should be strengthened, and the aging and broken wires should be replaced in time.

3 soil maintenance

3.1 Clean the garden in time

1 The plant residue after harvest is the hiding place of germs and pests. Therefore, after the production of vegetables, the plants should be promptly removed, and the fallen leaves and weeds should be cleaned and transported to a place away from the solar greenhouse.

2 For the mulch covered by cultivation, it should be removed in time, and the broken mulch fragments should be cleaned to avoid polluting the soil.

3 The rope used to hang the vines should also be removed from the greenhouse, and should not be left in the greenhouse. The strength of the rope used for hanging vines is greatly reduced after one season of use, and there are a large number of germs, which should not be used again.

3.2 disinfection of facilities

The non-drip anti-aging film selected for the greenhouse can generally be used for two seasons, and the high temperature shack is carried out without the shed film. In July and August, the soil was disinfected by using long direct sunlight and high temperature. The specific method is as follows: 1000-2000kg of straw is applied per 667 square meters, and 30-60kg of quicklime is deeply cultivated, and the small compartment is 60-70cm wide and 30cm high, which is mainly for increasing the surface area and increasing the ground temperature. The old film is covered on the surface of the car, and the ditch is filled with water until the car is soaked. The greenhouse cover is tightly sealed for 7 to 10 days. With this method, the surface temperature can reach above 80 °C, so that the indoor environment is formed with high temperature and oxygen deficiency, so as to kill low-temperature aerobic microorganisms and some pests, eggs and cockroaches. The disinfection method is because the temperature inside the shed is high, and the heat-resistant articles in the shed are carried out of the shed.

3.3 Space processing

The space treatment uses the smoke method or the dust method. The smoke method is to place 40% of the 40% chlorothalonil agent in the greenhouse, and ignite it with a dark fire for one night. The dust method uses a duster to spray 50% chlorothalonil dust. 1 kg per acre, spray a second time after 5 to 7 days.

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