The timely pouring of slurry water from earing to maturity requires a large amount of water. If the water supply is insufficient at this time, it will seriously affect the synthesis and operation of carbohydrates, resulting in a small wheat grain and a small number of grains per ear. During the filling period, the adaptability of the wheat root system to the environment becomes weaker, and the soil moisture content should be 70% to 75%. If less than 70%, even a short period of water shortage will cause the wheat grain filling period to end prematurely, thereby reducing the wheat grain weight. If drought and high temperature weather are encountered at this time, the grain weight and yield of wheat will be greatly affected. Therefore, it is advisable to pour slurry water after 10 to 12 days of wheat flowering. Wheat fields that have been grouted by grouting water, especially those that grow high-quality strong gluten wheat, can no longer be poured with wheat yellow water. For wheat fields that are planted with wheat and other crops on wheat ridges, if watering is really needed, the watering volume should not be too great. For wheat fields with large sowing and large groups, according to the weather forecast, it should be done without wind, water, small winds, slow pouring, strong winds, no pouring, and stop pouring in case of rain, so as to avoid the lodging of wheat caused by watering. For rice fields and wheat fields in the south of Henan Province, attention should be paid to cooling and preventing waterlogging. Timely Control of Pests and Diseases After wheat heading, various diseases and pests in wheat fields often occur mixed, affecting the yield and quality of wheat. The most common diseases occurring in the late growing period of wheat in our province are rust, powdery mildew, head blight and leaf blight. Common pests are roundworms, armyworms, red spiders, and midge. According to the forecast of the plant protection department of our province, this year, wheat diseases and insect pests in our province are more emphasised. Therefore, it is important to strengthen the monitoring of pests and diseases, use pesticides on the road, and take advantage of opportunities to prevent and control wheat stems and leaves from damage, increase wheat ear weight, and increase wheat yield and quality. First, control wheat powdery mildew and rust disease can be used per acre of 20% of 50 grams of veracithin EC, or 15% of triadimefon 75 grams, 12.5% ​​of special azole powder 30 grams, 50 kg of water foliar spray. Second, prevention and control of wheat scab in the wheat flowering period, such as the forecast of more than 5 mm of rainfall, or rainy weather for 3 consecutive days, per acre can be used 50% of carbendazim powder 100 g, or 33% of the powder neomycin powder 50 ~ 100 grams, 50% thiophanate-methyl WP 100 grams, dubbed 1000 times aqueous solution evenly sprayed the panicle, not only can prevent wheat head blight, but also can cure wheat sheath blight and black embryo disease. In particular, it should be pointed out that the best time to control wheat scab is during the flowering period of wheat. If this period is missed, it will be difficult to obtain the ideal control effect even if it is used repeatedly. For high-yield, super-high-yielding wheat, or low-lying wheat fields with high humidity in the field, even if there is no rain during the wheat flowering period, we must pay attention to the control of wheat scab. Third, the control of wheat insects per acre can be used 50% anti-inflavor powder 10 to 15 grams, or 40% of omethoate 50 to 80 ml, spray 50 kg of water. 4. Prevention and control of wheat midge from heading to flowering season with 80% dichlorvos per acre, or 40% omethoate, 40% methyl isofluosal, 50% phoxim EC 30 to 40 ml, against water 50 kg of spray can not only control wheat midge, but also treat leaf pests. Fifth, mixed control After wheat heading, most wheat fields should be mainly to control powdery mildew, rust and aphids. In order to achieve a multi-injection effect, triadimefon can be mixed with anti-indoles (or omethoate) and sprayed. In the event of an overwhelming rain, it may be mixed with triadimefon, carbendazim and anti-indoles (or omethoate) and sprayed. It can also be sprayed with Tetrazole (or Streptomyces cerevisiae) and anti-indoles (or omethoate) to control wheat scab, rust, powdery mildew, and wheat aphids. It is also very good for wheat black embryo disease. The control effect. Foliar-fertilizer wheat still needs to maintain a certain level of nutrition in the later period of growth, in order to extend the functional period of the leaves and prevent premature aging of wheat. During this period, the ability of wheat plants to absorb nutrients from the soil is gradually weakened, and the nutrients needed by wheat plants can be supplemented by foliar spraying. The foliar fertilizer should be applied to the wheat field with pale leaf color and premature aging after heading, which has a significant effect on prolonging the duration of grain filling and increasing the grain weight and yield of wheat. In the later stage of wheat growth, foliar spray fertilizer is commonly used for urea solution and potassium dihydrogen phosphate solution. For wheat fields with pale leaf color and premature aging after heading, they can be sprayed with 2% to 3% urea or ammonium sulfate solution at an amount of 50-60 kilograms per mu. For high-yield wheat fields, 0.3-0.4% potassium dihydrogen phosphate solution or 0.1% borax solution 50-60 kg per acre can be used for foliar spray. For wheat fields lacking trace elements, targeted fertilizers should be applied according to soil conditions. The main performance of timely harvesting of wheat wax at the ripening stage: the yellow leaves of the wheat plant are dry, the stems are still tough, and the ears and stems under the ear turn yellow, and the whole plant is yellow, green and yellow, which is what the masses usually call “wheat harvestingâ€. Three waists." At this point, the dry weight of wheat has reached its maximum value and it is a suitable harvest period.
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