I. Doing a good job in field management of various wheat fields
(A) Wang Miao Wang Miao Mian Mai wheatfield stems in the year before the number of more than 800,000. Due to the large population and slender leaves, these wheat fields are likely to cause field closure, poor light, and lodging after the jointing period. Therefore, the spring management should adopt measures based on control and control.
1. Early buckwheat. For excessively prosperous wheat with dry leaves, after the soil is thawed in early spring, we must use the medlar to carry out the dry leaves in order to ensure the normal growth of wheat.
2. Timely suppression. The repression of wheat during the period of rejuvenation and its resumption of life is a good measure to control the growth of the disease. When the repression begins, it must begin after 10 a.m. on a frost-free day. Note that frosty wheat fields are not repressed so as to avoid damaging the wheat seedlings. Saline wheat fields are not repressed to prevent soil compaction and affect soil aeration. The jointed wheat fields are not repressed so as not to break the internodes, resulting in insufficient panicles.
3. Spray chemical control agent. For excessively prosperous wheat fields, the spraying of “Zhuangfengan†and “Maijujin†chemical control agents at the time of wheat returning to the beginning of growth can inhibit the elongation of the first internodes of the base, control the overgrowth of the plants, and promote root barcing. To prevent late growth during childbirth. Generally 30 ~ 40 ml of mu, 30 kg of water, foliar spray.
Second, due to seedlings determine the time of spring watering.
(1) For the vegetative growth of the vegetative plants of the year ago, the soil consumption is too large and there is a phenomenon of “defertilizationâ€. If the population is not large, the total number of stems per acre in the early spring is below 800,000, and the seedlings can be seen after returning green. , get up early in the top dressing watering. If the group is too large, you can top-dress and water. Generally, about 15 kilograms of urea is applied per acre to prevent excessive seedlings from turning weak seedlings.
(2) For the excessively prosperous wheat field without de-fertilization, do not rush to fertilize the water in the early spring. Pay attention to repression, ploughing, chemical control and other measures to properly control seedlings and avoid excessive spring tillering. In general, fertilizer should be applied at the late jointing stage. The amount of fertilization is 15 kg of urea.
(3) For prosperous wheat fields that suffer from freezing injury, 7 kg of urea should be applied per acre combined with watering in the returning green stage of wheat in early spring, and then urea should be combined with watering at the jointing stage. About kilograms.
(4) For a prosperous wheat field without water-flowing conditions, the remediation should be carried out immediately after the soil is thawed in the early spring, so as to raise and protect the crop. After the wheat got to the jointing season and rained, grabbed the rain to catch fertilizer. Mu generally recovers about 12 kg of urea. Http://Content/3a5bf9fd-3104-471c-9b89-40835bdfc37b?cType=2
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