Q: What do you notice about the first water and fertilizer management in wheat in spring?
Answer: The principle of water and fertilizer management for the first time in spring is to delay the irrigation and fertilization time in spring and promote water and fertilizer management during the jointing period. During the return period, wheat has less water for its own growth, so watering is not good for wheat growth. Returning green manure can effectively promote the growth of wheat, increase the tillering in the spring and promote the emergence of the ear. Therefore, returning Qingshui is suitable for wheat fields with severe drought conditions, and returning green manure is suitable for under-populated wheat fields. Insufficient population In wheat fields, we must pour up water and apply body fat. The fat and water during the period of raising does not increase the total amount of tillers, but it can increase the percentage of spikes, thus increasing the number of mu ears. For moderate-scale or large-scale lyrical wheat fields, rising water and fertilizer management will cause unfavorable effects such as large groups, long internodes at the base, too large central leaves, easy lodging, etc., and should not be used. At the same time, wheat fields that have been poured back to Qingshui should not be suitable. use.
The vast majority of wheat fields need to be managed for the first time in spring water and fertilizer management during the jointing period. Fertilizer and water management at jointing stage can accelerate the size and polarity of wheat in the wheat field, promote the differentiation of florets, make the flag leaves broad and robust, and improve the ability to resist premature aging, which is conducive to the cultivation of reasonable groups and robust individuals. It is of significance for the formation of a reasonable number of ears per mu and grains per spike. major. At the same time, the first time the management of fertilizer and water in the jointing stage is also the key to reducing the number of watering in spring and promoting the high-yielding technology of wheat in water saving.
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