After wheat heading, the growth of roots, leaves and stems basically stops. After heading and flowering, the growth center gradually shifts to the grain. This is an important period for determining the weight and quality of the grain. How to root and protect leaves and prolong the functional period of roots and leaves is the key to increase grain weight and quality. Therefore, we must do the following six defenses. Solar Lights,String Lights,Garden Lights,Solar Garden Lights Foshan Nanhai Pinming Electrical Appliance Co.,Ltd , https://www.mavcadonf.com
Grab the "six defenses" after wheat heading
1. Anti-drought. During the period from wheat heading to maturity, the climate is changeable, and dry and hot winds often appear. During wheat flowering and grouting, water needs to be more. After heading, it encounters drought. It should be watered in time to keep the soil moist, to keep roots and leaves, and to enhance the resistance to dry hot wind. Ability to ensure smooth grouting. In the later stage, the wheat plant is tall, need to be watered when there is no wind, and it should be watered 5 days to 7 days before the appearance of dry hot air. When the dry hot wind appears, it will be suspended, and the wind will be washed to avoid lodging.
2. Anti-fertilization. After wheat heading, the root system enters the senescence stage, the absorption capacity is weakened, the utilization rate of rhizosphere fertilization is very low, and some nutrients are also in short supply. The root dressing should be carried out to extend the functional period of the leaves and prevent premature aging. Due to the growth conditions, spraying with 0.1%-0.2% potassium dihydrogen phosphate, or adding 0.1%-0.2% urea, mixed spraying, can prevent de-fertilization, increase grain weight, improve quality, prevent dryness Hot air also has a certain effect. Foliar spray time, sprayed on cloudy or sunny mornings and evenings, the effect is better. Pay attention to avoid spraying in the hot sun, and spray it in time after the rain.
3. Anti-falling. As the saying goes, "The wheat is a handful." The late fall of wheat generally reduces yield by 20%-30%, and in severe cases it can reach 50%. The earlier the fall, the better. Control measures: First, the wheat seedlings with lodgings are shaken off the dew on the plants on sunny days, and the growth is inhibited; secondly, the application of grass ash and the mulberry ridge into the roots can enhance the plant's ability to resist lodging and increase the grain weight; Third, watering should be carried out in a windless weather to avoid root lodging after pouring. In particular, watering the pulp water and wheat yellow water; fourth, the field with too much density can be properly planted. The wide-leaved wheat seedlings can cut 1/3 of the upper leaves, reduce the load, and change the top-heavy condition to prevent the fall. If the wheat field has already fallen, do not buck the wheat, and let it recover from the twists and turns of its stem.
4. Anti-dry hot air. To prevent dry hot air, early-maturing varieties should be used as much as possible. When dry hot air is used, watering can be quickly applied, and grass wood ash water is sprayed. The ratio is 500 grams of grass ash, 2.5 kilograms of water, and 20 kilograms to 25 kilograms per 667 square meters. It can also be sprayed with oil booster: 150g of growth aid, 50kg of water, which can increase the water content of the leaves after spraying, enhance water retention capacity, enhance photosynthesis and prevent dry hot air.
5. Control wild wheat. Wild wheat and weeds compete with wheat for water, water, and glory. If not treated in time, it will increase year by year and pose a serious threat to wheat production. Because wild wheat can not be removed by chemical herbicides, weeds in wheat fields have passed the eradication process, so they can only be removed manually. In the process of extraction, it is necessary to take care of the roots and remove the whole wild wheat from the field. The weeds in the wheat field should be removed before the seeds are seeded.
6. Prevent pests and diseases. There are many kinds of pests and diseases in the late growth stage of wheat, mainly rust, wheat stubble and red spider. Strengthen forecasting and forecasting, prepare medicines, and take effective control measures early to minimize pest and disease losses.
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