Anyang City
Spring management can be followed by three types of wheat fields, followed by two types of wheat fields, and finally a series of wheat fields in sequence. The total number of stems per acre in the three types of wheat fields is less than 450,000 per acre, which is mostly late seeding and weak seedlings. Spring fertilizer management should be based on promotion. Spring topdressing should be carried out twice. For the first time, when the temperature of 5 cm in the regreening period is stable at 5 °C, the topdressing and watering is started, and 5-7 kg of urea and appropriate amount of diammonium phosphate are applied per mu. The second time in the middle of jointing, fertilization and watering, increase the number of grains per ear. The second type of wheat field has a total stem number of 750,000 per acre. The focus of spring fertilizer management is to consolidate the tillering before winter, appropriately promote the occurrence of spring tillering, and increase the tillering rate. The level of soil fertility is general. The second type of wheat field with acreage of 60-65 million acres is fertilized and watered in the initial stage of wheat, combined with watering and acreage of urea 10-15 kg; the second level wheat field with high level of soil fertility and about 700,000 acres of stems In the middle of the wheat, the topdressing and watering. A kind of wheat field has a total stem number of 900,000 per mu in the initial stage of greening, which belongs to the strong wheat field. It should be controlled to promote the combination, increase the tillering rate of tillering, and promote the large number of grains. First, the body is sprayed with Zhuangfeng'an and other regulators, shortening the base internodes, controlling the plant growth, promoting the root system and preventing the late growth. The second is to topdress the fertilizer at the end of the jointing stage of wheat, and apply 12-15 kg of urea per mu.
In the Wanmiao wheat field, the number of stems per mu is more than 1 million, the plants are taller, the leaves are longer, the ear differentiation degree of the main stem and the low tiller is earlier, and the early spring is prone to freezing damage, mainly in early sowing and large-sowing wheat fields. Spring fertilizer management should be based on control. First, the body is sprayed with a conditioner to prevent lodging during the late growth period. Second, the Wang Miao wheat field without de-fertilization should suppress the seedlings in early spring to avoid excessive spring tillers. After the jointing period, the topdressing and watering, 10-15 kg of urea per acre.
Spring is a season of frequent occurrence of various pests and diseases. For the wheat fields that have not been eliminated in autumn, the chemical weeding work after greening should be strengthened. When using herbicides, strictly follow the concentration and technical procedures to avoid phytotoxicity. In the prevention and control of pests and diseases in spring, it is necessary to vigorously promote the treatment of stages, mixed application of drugs and treatment of multiple pests and diseases. The returning to the jointing stage is another peak period of infection and other viral diseases such as sheath blight and total rot disease, such as root blight and plexus dwarf disease, and yellow dwarf disease. It is also a dangerous period for wheat spiders, underground pests and grass pests. One of the key links in integrated wheat control. Early spring frost damage (inverted spring cold) is a frequent disaster in the early spring of the northern wheat area. The most effective measure to prevent early spring frost damage is to pay close attention to weather changes and water before cooling. After freezing, it can be properly topdressed to promote the recovery of wheat seedlings.
Luoyang City
1. Dryland wheat fields are mainly cultivating, weeding, protecting and lifting. The cultivating can effectively increase the temperature and protect the mites, eliminate the knots, eliminate the weeds, improve the soil permeability, promote the growth and development of roots and tillers, promote early growth, robust growth, and increase the ear formation.
2. The irrigated wheat field is managed by seedlings. A kind of wheat field with good sensation and reaching the standard of strong seedlings, the management time of spring fertilizer and water is postponed until the middle of jointing (the middle and late March), combined with irrigation and mu, about 7.5 kg of urea.
For the second-class wheat fields that do not meet the standard of strong seedlings, it is necessary to carry out irrigation and topdressing in the early stage of the body-lifting period or the early stage of the jointing period (mid-February). Apply 10-15 kg of urea or apply appropriate amount of compound fertilizer to promote early-onset.
For the three types of wheat fields with small population and weak seedlings, it is necessary to carry out water and fertilizer management as early as possible. Generally, 10-15 kg of urea is applied in the mu, which promotes early development and promotes the splitting of springs into more ears. If necessary, you can carry out two top dressings. The first time you get up in the greening period (mid-February), about 10 kg of urea is applied in combination with watering. The second time at the end of the jointing period (end of March), combined with watering 5-10 kg.
3. Pest control. The soil moisture is large, which is conducive to the occurrence of diseases such as sheath blight and powdery mildew. Therefore, it is necessary to timely prevent and predict pests and diseases, and strive to reduce the number of pests and diseases. Spraying the drug with triazolone, hegrin effect is better, the spraying period to return to the starting period is the best time, while the jointing period should continue to be cured. When spraying, generally use 20% triazolyl emulsifiable concentrate 80 to 100 ml per acre, and add more than 40 kg of water, which can effectively control the spread of rust, sheath blight and powdery mildew.
4. It is forbidden to incinerate livestock and birds. Indigo will cause the wheat seedlings to lose a lot of leaves, and effective measures should be taken to protect the wheat seedlings.
Nanyang City
1. Look at seedlings and topdressing, scientific regulation. In the spring wheat field, the amount of fertilizer applied is 8-10 kg per mu. The time for top dressing varies from place to place. For wheat fields with insufficient base fertilizer and de-fertilization phenomenon, it is necessary to topdress early to consolidate winter tillers and strive for large spikes; for early and late seedlings with smaller individuals and groups, it is necessary to apply early fertilization to promote the growth of small and medium tillers; The frozen wheat fields should be chased early and strive for more branches in the spring; the group should be late in the wheat field, and it can be topdressed in the early stage of jointing to promote the polarization of tillers and reduce the ineffective tillering in spring. For wheat fields with early sowing date, large amount of sowing, and prosperous trend, it can be sprayed evenly with 15% paclobutrazol WP 30-50 g per acre or 30-40 ml of Zhuangfeng An 25-30 kg. Control is prosperous and prevent falls.
2. Prevention and control of weed damage. The wheat field mainly consisting of pork chop, baocao grass, leeks and wild rapeseed can be used with 75% DuPont superstar suspending agent, 0.9-1.5 g per acre, 25 kg of water, evenly sprayed after dilution; Or Pentium and so on. For the control of wild oats, see Mai Niang and other grass weeds, you can use 6.9% Hummer EC, 40 ~ 50 ml per acre, add 25 kg of water and then spray evenly.
3. Strengthen the prevention and control of pests and diseases. The current temperature rise is conducive to the occurrence and spread of a variety of pests and diseases. At present, it is a critical period for controlling the root and stem diseases of wheat. Once the late control effect is missed, the prevention and control of sheath blight is the highest in the field. 15%, 15% triazodone wettable powder 100g per acre, 50kg water, spray on the base of wheat stems, spray again in heavy disease field 7-10 days. At the same time, we must do a good job in forecasting and forecasting wheat rust and powdery mildew. To prevent and control wheat stripe rust, we must implement the prevention and control strategy of “accurate monitoring, drug detection, and discovery, controlâ€.
4. Prevent night frost damage. Nanyang City often has the phenomenon of “cold spring coldâ€, and it is necessary to increase vigilance and prevent night frost damage. While doing a good job of management measures such as cultivating and fertilizing, pay close attention to the weather changes, take measures such as watering and spraying antifreeze before the cold current to prevent night frost damage. In case of freezing damage, timely remedial measures such as watering and topdressing should be taken. Apply 5-10 kg of urea to the acre to promote its growth as soon as possible.
5. It is forbidden to incinerate livestock.
Li Jinbang, Nanyang Academy of Agricultural Sciences
Shangqiu City
Spring wheat management recommendations, first, timely green tillage after wheat greening, wheat fields that have not been chemically weeded before, and early cultivating weeding or pharmaceutical weeding. The second is suppression. For the wheat fields with large and prolonged wheat populations before the year, the wheat was repressed before it got up, slowing down the growth rate, delaying the development of young ears and preventing possible freezing damage in spring. The third is to timely fill the fertilizer. Affected by the weather, this winter wheat winter population is not large, combined with insufficient accumulated temperature, the main stem and leaf age is within the appropriate indicators, in order to improve and stabilize the number of acres into the number of spikes, it is recommended that the second and third types of seedlings in the greening period of topdressing, per acre 10-15 kg of urea, after the jointing period, depending on the seedlings, it will chase about 5 kg. A kind of seedlings are topdressing, 7.5-10 kg of urea per mu, and 7.5 kg/mu of urea at the end of jointing. The fourth is to control pests and diseases. Wheat wheat sheath blight and total erosion are generally controlled by foliar spray during the period of wheat emergence. After wheat jointing, the rice sheath blight and total rot disease are added. The wheat fields of aphids and red spiders have been chemically weeded or dried. In the prevention and treatment of diseases, pesticides are added for comprehensive control.
Zhoukou City
1. Do a good job of cultivating and suppressing wheat fields, and control is prosperous. It is necessary to carry out deep cultivating or suppression in time for the large and long fields of the group, and the depth of cultivating is 10 cm. On the basis of cultivating, we should do a good job in chemical regulation, specifically: in the wheat back to the jointing stage, use 20% Zhuangfengan 30-40 ml or 15% paclobutrazol 35-40 g, and spray 40 kg on the base of the wheat stem. At the same time, it can be mixed with drugs for preventing and treating sheath blight, saving labor and time, and the effect is good.
2. Increase effective distribution. In the case of insufficient wheat fields before winter, according to the soil moisture, timely watering and fertilization in the early spring will increase the effective tillering in spring, and increase the number of ears per mu, specifically 8 to 10 kg of urea. For strong seedlings or before the implementation of nitrogen before the wheat field, after wheat jointing.
3. Prevention and control of wheat sheath blight. Before the mid-February to the beginning of March, before the wheat jointing, the base of the wheat stem was sprayed with 12.5% ​​diniconazole 25-30 g or 20% triazolone EC 75-100 ml water 40 kg.
4. Do a good job in chemical weeding. There is no wheat field to prevent weeds before winter. After the Spring Festival, when the temperature is right, we must do a good job in weed control. Specific measures: 10% benzenesulfuron-methyl WP 10g plus 30% bensulfuron-methyl 10g, 30kg spray with water. For example, wild oats are used in a serious field with a mixture of 6.9% Hummer EC 45-60 ml and 30 kg with water. When the herbicide is dispensed, a second dilution method is adopted. If the average daily temperature is greater than 8 degrees Celsius, the weather will be evenly sprayed on a sunny day without wind and no spray. It is strictly forbidden to use herbicides in combination with organophosphorus pesticides. It is strictly forbidden to use herbicides after wheat jointing.
5. Strictly prevent livestock and poultry from indigo.
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