What are the precautions for the weathering warming wheat to return to the green season?
A look at the fertility of wheat field based on fixed fertilization varieties. Where the soil fertility level in the wheat field is high, the organic fertilizer is applied in sufficient amount before planting, or the soil fertilization is applied and the fertilizer is applied. In the spring, little or no nitrogen fertilizer is applied, and only phosphorus and potassium fertilizers are applied. Where soil fertility is poor, fertilization is affected by rainy rain before sowing, so that the wheat field with insufficient application should be applied with some nitrogen fertilizer, and combined with phosphorus and potassium fertilizer, fully satisfying the demand for fertility of wheat jointing and heading. Second, look at the time of fertilization at the development stage of wheat seedlings. According to the growth and development stage of wheat in the Yellow River Basin, the best time for applying joint fertilizer is generally from late February to early March. At this time, fertilization can promote the formation of panicles and increase the rate of ear formation. Promote the differentiation of spikelets and florets, and strive for more large spikes. At the same time promote the growth of the top three leaves. Therefore, fertilization at this stage is the maximum effect period of winter wheat fertilization. At this stage, the length of the first internode of the main stem of the wheat plant has been stabilized, and the second section is elongating. After fertilization, it will not cause the base internode to stretch too long and weaken the lodging resistance of the wheat, which can only promote the robust growth of the wheat. Conducive to jointing and heading, increase the number of acres of ear. Third, look at the growth of the young crops. According to the spring wheat seedling growth, a reasonable amount of fertilizer is determined. Where wheat leaves are green, leaves are drooping, no de-fertilization, and large populations of wheat, generally do not apply nitrogen fertilizer or less nitrogen fertilizer, can apply 10 to 12 kg of phosphorus and potassium fertilizer; where soil fertility is poor, affected by overcast rain Seeding is late, the seedlings are poor, the number of tillers per plant is small, and the number of small wheat fields should be 6-8 kg per mu or 15-18 kg of ammonium bicarbonate, and with the application of superphosphate and potassium chloride. Each 5 to 6 kilograms, or 1000-2000 kilograms of biogas slurry fertilizer per acre, promotes the rapid growth of wheat seedlings and increases the rate of tillering. Fourth, look at the climate and soil conditions to apply fertilization methods. First, when the topdressing is selected, the weather is fine at noon. Second, the wheat fields with irrigation conditions can be filled with water immediately after application, or they can be applied with water. Third, the fields without irrigation conditions must be used for deep application. The depth of fertilization should reach 5~8 cm or more, and the buckwheat should be immediately after application to prevent the fertilizer from volatilizing and improve the fertilizer utilization rate. The fourth is that the rain can be directly removed into the wheat field before the rain; the fifth is to apply the bio-liquid fertilizer and have the irrigation It can be applied with water, the dry land can be directly poured into the wheat pocket, and then covered with soil; the sixth is the top dressing, spraying 0.2%-0.3% potassium dihydrogen phosphate solution at the jointing stage, the spray volume per amu is 40-50 kg . This article URL: What are the precautions for the weathering warming wheat to return to the green season? 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. Degree Irrigation Nozzle,Irrigation for Agriculture,Impact Drive Sprinkler,Plastic Drip Irrigation Fittings JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.greenhousehydroponic.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.