First, choose the eggs as much as possible to use the production of eggs within two weeks, and remove double yellow eggs and misshapen eggs. After selection, use 30°C warm water and add 0.1% potassium permanganate solution to soak the eggs for 3 minutes, remove them and dry them to incubate. Second, the key to the success of temperature incubation is the temperature, in the early pre-hatch 1 to 7 days, the machine temperature is maintained at 37.8 °C, 8 to 20 days at 37.5 °C, 21 to 24 days (outside the shell) at 37.2 °C. Thirdly, the humidity and humidity should be adjusted according to the various stages of embryonic development. The relative humidity at the early stage of incubation should be maintained at 60% to 65%, and the medium term should be 55% to 60%. At the late stage of incubation, the water in the air should be used together with carbon dioxide. In the eggshell, the sodium carbonate is changed to calcium carbonate, which makes the eggshell brittle, so as to facilitate the chick oyster shell, the humidity should be maintained at 65% to 70%. Fourth, turn the eggs in order to make the eggs heated evenly, so that embryonic development is normal, must be manually or naturally turn the egg, from the second day of incubation, usually 2 to 3 hours turn once, the second day can be stopped. Five, according to egg hatching eggs 5 to 7 days can be the first time the eggs, normal eggs can be found on the embryo's eye, the color of the egg red and bloody; egg yolk expanded, biased to one side. There is no change in the eggless egg. The egg yolk is complete and the egg white is transparent. Take it out in time. The number of eggs should be determined according to the specific circumstances, mainly to check the development of embryos, and timely removal of dead eggs. Sprinkler irrigation and micro-irrigation automatic control equipment With the development of economy, water resources, energy shortage and labor cost increase, more and more water-saving irrigation systems will adopt automatic control. This article focuses on the advantages and classification of automated irrigation. Irrigation System Degree Irrigation Nozzle,Irrigation for Agriculture,Impact Drive Sprinkler,Plastic Drip Irrigation Fittings JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , http://www.spgreenhouse.com
The advantages are as follows:
(1) It is possible to truly control the amount of irrigation, irrigation time and irrigation cycle in a timely and appropriate manner, thereby increasing crop yield and significantly improving water utilization.
(2) Saving labor and operating expenses.
(3) The work plan can be arranged conveniently and flexibly, and the management personnel do not have to go to the field at night or other inconvenient time.
(4) Since it can increase the effective working time every day, the initial capital investment in pipelines, pumping stations, etc. can be reduced accordingly.
classification:
First, fully automated Irrigation System
The fully automated irrigation system does not require direct human involvement. The pre-programmed control procedures and certain parameters that reflect the water requirements of the crop can automatically open and close the pump for a long time and automatically irrigate in a certain order. The role of the person is simply to adjust the control program and overhaul the control equipment. In this system, in addition to emitters (heads, drip heads, etc.), pipes, fittings, pumps, and motors, it also includes central controllers, automatic valves, sensors (soil moisture sensors, temperature sensors, pressure sensors, water level sensors, and rain sensors). Etc.) and wires.
Second, semi-automatic irrigation system
In the semi-automated irrigation system, no sensors are installed in the field. The irrigation time, irrigation volume and irrigation period are controlled according to pre-programmed procedures, rather than feedback based on crop and soil moisture and meteorological conditions. The degree of automation of such systems is very different. For example, some pump stations implement automatic control, and some pump stations use manual control. Some central controllers are only one timer with simple programming function, and some systems have no central control. The controller, but only some of the sequential switching valves or volume valves are installed on each branch pipe.
Automated irrigation is the trend of the times. In the future water-saving irrigation projects, more and more automated irrigation systems will be applied.