Shen Houzhu, Tugou Town, Jinhu County, said on January 14 that he had sowed more than 200 mu of wheat around November 15th, only part of the plot was flooded after sowing. There was no heavy rain some time ago, only a moderate rain in the middle, soil in the fields was dry, and seedling growth was always weak. Now the young wheat seedlings are in the period of 2 to 3 leaves. The weather is dry and cold recently. The wheat seedlings are slightly frozen. The leaves of plants are dark green, the leaves are not frozen, and the roots are white. He asked that such wheat fields now require no irrigation and fertilization.
According to the provincial Agriculture Commission, Shu Linhua, chief of the wheat oil section of the planting station, introduced that almost every winter wheat in some local areas will have different degrees of frost damage. This year's wheat freeze injury mostly occurs in the arid areas of Huaibei and some prosperous wheat fields. The extent of frost damage in wheat fields was not heavy, only the leaves were frozen, and the main stem and tillers were not severely frozen. Wheat is slightly frost-damaged and generally does not require special measures to remedy it.
There was no major rainfall for a long period of time after the wheat was sown this year, and the soil in the field was arid. The drought situation in Huaibei area has continued recently. At present, wheat in our province is in the overwintering stage. Wheat seedlings are generally strong in drought resistance and frost resistance. In particular, wheat that has been sown at a suitable time and has a large amount of growth before winter is used, its roots are generally developed, and it can absorb water from deep soil and resist drought. Strong resistance to freezing. In the field soil freezing period, as long as the wheat seedlings do not appear severe symptoms such as leaf dead, generally do not water or water drought. Irrigation of wheat fields during soil freezing period is likely to cause water and icing in the fields, causing “leakage†damage to the wheat seedlings (when the field surface water accumulation ice rises, the wheat seedlings rise upward and the wheat seedlings are broken); smaller wheat seedlings may be Due to long-term suffocation in the ice, or uprooted (commonly known as "root pull"), the roots moved up and suffered severe frost damage. The temperature is low in the near future, and the weather forecast has a wider range of snowfall, which can supplement the farmland water to a certain extent. Generally, the farmland should not be flooded. In order to prevent dry-frozen dead seedlings, the field where the soil is too dry and the wheat is seriously deprived of water can be irrigated once per day with “cold-head warmer†(generally, if the average daily temperature is greater than 3°C, the soil can be “frozen overnightâ€. get on). Pay attention to speed irrigation, so as to avoid water and ice in the field.
In the wintering period, the growth of wheat is small and the demand for fertilizer is small. Usually, it is not necessary to apply fertilizer, and it is necessary to fertilize it in the spring. Insufficient basic seedlings in the field, underutilization of basal fertilizer, thin and weak seedlings in the field, and appropriate fertilization, generally applying 5 to 10 kg of urea per acre. In wintering period, fertilization except for a small amount of supply of wheat seedlings grows slowly in winter, but basically it is used in winter and spring, which can promote long-rooted wheat, early return to green, consolidate tillering before winter, promote spring birth and delivery, and increase the rate of spike formation. The use of adequate basal fertilizer, good quality seedlings of wheat, generally should not be fertilized during the winter, otherwise it will lead to an increase in invalid childbirth, the group is too large, the base section excessive lengthening, late easy to lodging, but not conducive to high yield and stable production.
Guava White Tea,White Tea Leaves,White Peach Tea,Silver Needle White Tea
Hunan Junshan Yinzhen Tea Industry Co.,Ltd , https://www.junshan-tea.com