1, top dressing watering is usually in the 0- 10 cm soil layer in the three-leaf period when the water content is less than 12%, can be used as an index of pouring water. Generally do not promote pouring water, it is best to make enough soles to ensure that the need for water delivery. Winter water and winter fertilizer can improve soil nutrients, water status, and the change of ground temperature to ensure that the wheat seedlings return green and increase the percentage of tillers and spikes to create favorable conditions and grasp the initiative of spring management. Saline-alkali winter irrigation also has the effect of pressure alkali change soil. The amount of winter fertilizer should not be too large, should be due to the seedling system, the amount of mid-production wheat fields accounted for about 20% of the amount of topdressing, without the application of phosphate fertilizer land, should be combined with nitrogen and phosphorus. Fertilizers have been applied to the wheat field, do not follow winter fertilizer. The pouring of winter water ends when the average daily temperature of 7 to 8°C is frozen overnight. Late buckwheat, short growing period before winter, less leaves, less roots, or “one leafâ€, in order to use the effective accumulated temperature in the early winter and early spring freezing and thawing period, to increase the sowing ground temperature, to promote root growth, in the case of adequate bottom , should not be poured winter water. 2, deep cut off the roots, repression of the middle of fertility above the level of fertility of wheat, after the beginning of winter, when the total number of per acre reaches 1.5 times the planned number of panicles, rooting should be carried out, with the removal of the left and right teeth The gills are interlaced and are 10 cm deep. After the squats, they should immediately take advantage of the facts to prevent pressure seedlings and wind loss, and to pour winter water in time. For wheat fields with large groups, squat cutting has obvious effect on the control of group development. For wheat fields that are overgrown by over-promoting groups, suppression measures can be taken to suppress tiller growth before winter. In fields with extensive farming practices and with a lot of crops, the wheat fields should be repressed before they are frozen on the ground and crushed and used to make up for cracks. Pressure wheat should be carried out after noon so as to avoid frost cracking the wounded seedlings in the morning, and saline soil should not be suppressed. After the wheat field is poured through the winter water, it is easy to cause surface compaction, cracks, easy to lose, break the wheat root, and freeze the dead wheat seedlings. After entering the wintering period, wheat is promoted to pour urine in winter in middle and low-yield wheat fields. With the product being poured, it is a simple and easy way to increase production (but not when the snow is snowing, and saline land can not be poured). After the rain or watering Afterwards, we must pay close attention to scratching, restraining the return of salt, and prohibiting grazing in barley fields.
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