Anti-watering should not be started in time as early as possible, use all water conservancy facilities, pouring good green, jointing, and spike water. Any type II and III wheat fields that have not been used for winter irrigation and wheat fields with severe frost damage should be poured back to Qingshui; high-yielding fields that have been growing well and have already been fed in winter can be postponed until later in the jointing stage, such as soil defects in the booting and filling stage, and should also be reduced. Pouring water from the booting and grouting water.
The second prevention and control of loose soil is not timely to plan for loose soil is an important measure to promote the early return of young wheat and robust growth. The specific requirement is that the weak seedlings should be cultivated shallowly to promote growth, and the wheat fields with large and large populations should be intensively cultivated, roots should be cut, and the supply of nutrients and breeding of spring bristles must be restricted in order to achieve the purpose of controlling growth and growth.
Three defenses blindly return fertilizer to green fertilizer due to seedlings. The specific fertilization method is to apply 9 kg of urea per acre, and also apply about 20 kg of ammonium bicarbonate. For a phosphorus-deficient wheat field, about 15 kg of superphosphate should be mixed and applied.
Four pest prevention springs are the key period for controlling wheat pests and diseases. The main diseases in the spring are rust, powdery mildew, and head blight. The main pests are wheat spiders, wheat stubble, and alfalfa. We must strengthen forecasting, prepare medical equipment, pay attention to management, and timely prevention and control.
Five night frost damage in spring, late in the north latitude 30 degrees north of China often occur frost, wheat rose to the jointing period is vulnerable to frost attacks. Prevention measures are: According to the weather forecast, watering within two days before the onset of frost, to increase the humidity in the field, so that the slow cooling, there is the effect of preventing and reducing the risk of frost. For wheat seedlings that have suffered severe frost damage, they should not be destroyed. As long as early application of readily available fertilizers, combined with watering, can still promote the unfreeze of the tillers or the birth of fresh birthing, and obtain a certain harvest.
Six weeds are chemical weeding. In general, the spraying time is before the greening season and before the jointing stage. Sunny weather is selected. No wind or no dew occurs. The temperature is from 9:00 am to 4:00 pm. The spray should be sprayed once and not sprayed repeatedly. The second is weeding and weeding. This is the most common method.
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