During the reversal period, wheat control
Premature sowing, excessive sowing, and too much N fertilizer in the base fertilizer will lead to the growth of wheat. Prosperous wheat has low intracellular sugar and various organic nutrient concentrations, high freezing point, especially after young panicle differentiation enters the Erlang period, the ability to resist coldness is reduced, and it is extremely vulnerable to freezing injury. The light is dead and the whole plant is dead. , directly affect the wheat yield. Prosperous wheat seedlings grow lushly, with many stems and pods, large leaves, elongated internodes, weak stalks, less accumulation of dry matter, poor root development, and hidden troubles for later lodging.
The use of physical control methods, such as repression, deep squats, heavy workload, and time-consuming work. Using the chemical control method to save time and labor, and to do more with less, wheat without herbicide before winter can be sprayed together with the control agent.
At present, the best wheat control products on the market, the mechanism of action are mostly to make the wheat roots robust, shorten the internodes, lay a good foundation for wheat to shape the ideal plant type. Internode shortening in wheat refers to the reduction of the distance between 1 and 3 knots at the bottom of wheat. The control was early, affecting the return of wheat to the jointing season, and the wheat did not reach the ideal height. Control late, the bottom of the 1-3 section of wheat has been normal growth and development, the bottom of the internode fixed height, and then contraction will shrink between the middle section, the formation of the upper and lower internodes, inter-coarse internode thicker, but easier to lodging. In addition, after the jointing period, the wheat enters the booting stage, and the vegetative growth gradually shifts to reproductive growth. At this time, the re-warming may easily lead to the delay of heading, inconsistent or inconsistent earing of wheat, affecting flowering and pollination, and thus affecting wheat yield. To remind farmers in this area, we must carry out chemical control and prosperousness in the early days of returning to the beginning of the jointing season.
What needs to be reminded is that wheat control is prosperous. It is not as short as possible. Because the growth and development and flowering of any crop require a lot of nutrients, if the plants do not have a reasonable height and there is no accumulation of sufficient nutrients, there is no potential for high yields. While controlling the plant height, it promotes the development of wheat roots, thick stalks, and better toughness, so that the lodging resistance of wheat is stronger. This is the goal of controlling Wang.
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