Plastic greenhouses
Features:
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3.Match with all kinds of farm implements:plough,tiller,trailer,sprayer,seeder
etc.
4. The gearbox and main spare parts, we made by ourselves.
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When the temperature is appropriate, the pigeons have a good appetite, more eggs, and a higher fertility rate. Under the conditions of high rearing temperature and suitable temperature, the egg production per year can reach 100-110 pieces, the fertilization rate is as high as 92%-96%, and the hatching rate of fertilized eggs can reach 84%-91%. Zhengzhou is located at 34 degrees north latitude, with an average annual temperature of 14.3 degrees Celsius. The average temperature in January is -0.2 degrees Celsius and the absolute minimum temperature is -15.8 degrees Celsius. The average temperature in July is 27.8 degrees Celsius and the absolute maximum temperature is 43.0 degrees Celsius.
The design of a reasonable plastic greenhouse without artificial heating in the region, the weather during the daytime can be up to 16-18 degrees Celsius in the greenhouse, in the greenhouse in winter, low temperature resistant plants. Without artificial heating, natural light can be used to grow.
According to the situation of greenhouse planting, we designed a greenhouse that uses natural light to breed a species of quail. Without artificial heating in the winter, we can make the quail breed eggs normally. This not only saves the cost of construction. It also saves fuel and labor costs for artificial heating in winter. The relevant circumstances are described below.
1. The temperature greenhouses in greenhouses are constructed from north to south. Each building is 6.5 meters wide, 30 meters long and 2.5 meters high. From the north wall to the south 2.5 meters is a flat roof, the walls of cement mortar brick walls, the top of the cement prefabricated panels. The back wall has 2 doors and 4 half windows. The front wall is 50cm high and made of brick and cement mortar. The outer layer of the brick is plastered with cement mortar. From the front wall to the top of the roof of the greenhouse, one 6-piece steel pipe is installed every 1m wide. The two middle bases are provided with hooks so that after the plastic film is attached, the cord is fixed to the film.
Both the steel pipe and the walls at both ends are curved. As a plastic greenhouse frame. The plastic film is a drip-free film produced in Beijing. A layer of straw curtains was added outside the winter plastic film. It was rolled up during the day to facilitate sunlight in the greenhouse. In summer, the curtain was removed and the plastic film was rolled up from the bottom by about 1 meter. After rolling up, the 22cm welded mesh was installed on the non-membrane part, and the ventilation was opened on the other side, and the other side prevented the enemy from entering the breeding room. Above the plastic film, a shading net was attached to prevent the temperature of sunlight from entering the booth. The ground is leveled with cement. The above materials constructed a total investment of 26,300 yuan for a shed, with a cost of 135 yuan per square meter, which is more than the cost of building a traditional poultry house (which can be kept warm) at a cost of 250 yuan per square meter.
2. The greenhouse temperature Peng Peng has grown since November 15, 1997. It has been two winter months and one summer. We measure the temperature in the shed every morning in winter at 6:00 in the winter and measure the temperature in the greenhouse in June 20 to August 20. The results are as follows: 1997 In the winter of January, the minimum temperature recorded was 7°C in the morning, and the maximum temperature was 12°C, with an average of 9.1°C. The temperature was recorded at 2:00 PM, the highest temperature was 24°C, the lowest was 16°C, and the average temperature was 19°C.
In the summer of 1998, the lowest temperature in the morning was 24°C, and the highest temperature reached 28°C with an average of 26.5°C. At 2:00PM, the highest temperature was 38.5°C, and the lowest was 36°C, with an average of 36.8°C. In the winter of 1998, the highest temperature was 13.5°C in the morning and the lowest temperature was 9.3°C, with an average of 9.3°C. At 2:00PM, the highest temperature was 2l°C, the lowest was 17.5°C, and the average was 21.5°C.
The above data shows that natural lighting in the winter does not require artificial warming to fully meet the environmental temperature requirements of egg production. The average temperature in the greenhouse in summer has exceeded the maximum critical temperature of the breeding pigeons during the egg production period and will not stop production. The actual production has been suspended. Therefore, after June 10th, the breeding of feeds should be controlled so that they will not produce for 2 months. When the temperature is appropriate, the feed will be adjusted to start production.
3. After 2 months of production, the number of egg production statistics will be counted. After stable egg production, we will perform statistics. The statistics will be from January 20, 1998 to January 19, 1999. 120 groups, 3 males and 1 males per group, totaling 360 females, totalling 3,464 eggs, with an average of 98.5 eggs per female parent, and close to the rate of egg production per female parent index. 31565 eggs were fertilized and the fertilization rate of eggs reached 89%. In addition, after the deferred breeding crickets and commercial quails, can be kept in such a greenhouse.