Late-seeding wheat management technology

The management of late-seeding wheat comprehensively integrates the experiences of various regions. The management of late-seeding wheat should be as follows: The dual-use and two-competition use the two winters of the early winter and early spring soils to achieve the germination of two latent earthworms. Because late sowing wheat has less accumulated temperature before winter and basically does not produce tillers (or fewer tillers), it makes full use of the two melting and melting phases of the early winter and early spring soils. By adopting measures such as ploughing and drawing, two potential plagues can be obtained. The germination can make it possible to form tillers as early as possible during returning green, increase the total number of stems in the field, and ensure the number of panicles. Four waters and fiercely poured water at the end of the well, returning to Qingshui, jointing water, and flowering water of the booting spike, and applying nitrogenous fertilizer in the returning green period. 1. Ensure that there is sufficient water at the bottom. Due to the lower temperature in the autumn, the loss of soil moisture is less, and the bottom sill is adequate. Before winter, it is not necessary to irrigate frozen water, so as to avoid lowering the ground temperature, which is not conducive to the growth of wheat before winter. If winter irrigation is really needed, the irrigation period should be postponed appropriately. 2. In order to avoid lowering the ground temperature and affecting the tillering and growth of wheat, the returning green water should be postponed until the new crop emerges from the ground, and the new root will grow to about 2 cm before it is poured (if the bottom hoe is insufficient, the winter and spring are less rainy, and the tillering festival is in the dry soil layer. , can be suitable for early pouring). In addition, in order to promote the application of nitrogenous fertilizer to returning Qingshui, a standard nitrogen fertilizer of 17 to 20 kg per mu is used to promote the growth of wheat tillers and increase the population density. 3. After pouring back into Qingshui, pour out water in a timely manner. High-yielding fields combined with water-saving joints and 10 kg/mu of standard nitrogen fertilizer applied to lay the foundation for the later wheat grains and grain weight. 4. After returning to Qingshui and jointing with water, it is necessary to take measures such as cultivating and spraying chlormequat, so as to prevent late lodging of wheat due to excessive population and poor growth of individuals. Afterwards, according to soil moisture and seedling conditions, pour in water to ensure that wheat pollination and grouting are carried out smoothly. The three defenses will prevent dry heat, prevent pests and diseases, prevent premature aging, and ensure grain weight. Late-seeding wheat matures later, and late-stage fertility is more fierce. It is easy to cause greediness and is affected by dry hot wind and affects grain weight. Therefore, it is necessary to maintain appropriate field humidity or spray green-type 95 growth regulators after birth. In order to reduce the harmful effects of dry hot wind. During the period of wheat grouting, the temperature and humidity are relatively high, which is beneficial to the occurrence of powdery mildew and locust infestation. Therefore, diligent observation and timely control are needed. Furthermore, due to the shallow distribution of wheat chlorophyll in late sowing wheat, its function declines earlier. In order to ensure the photosynthetic capacity and photosynthetic intensity of wheat in the later stage, potassium dihydrogen phosphate or urea solution should be properly sprayed during milking to prevent premature aging. To ensure grain weight

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