In order to obtain high yield of winter wheat, the application of seed fertilizer is not negligible. The effect of applying fertilizer is mainly to provide the required nutrients for the wheat seedlings. When the seedlings just came out, the roots developed weakly, and the ability to absorb fertilizer and water was weak. However, when the winter wheat was planted in the northern wheat area, the soil temperature was already low, and the soil's own nutrient release was slow, and the problem of nutrient supply was likely to occur. Although the demand for nutrients in winter wheat seedlings is small, it is very sensitive and strict, and it needs to supply less and better nutrition. Therefore, the role of the seed fertilizer is to ensure that the wheat seedlings are young and vigorous, and they will survive the winter and return to green in time. This is one of the keys to high yields of winter wheat. At this time, the application of the seed fertilizer can improve the drought resistance and cold resistance of the wheat seedlings, and achieve the purpose of cultivating the strong seedlings.
What fertilizer is applied to the fertilizer? The most needed fertilizer is phosphate fertilizer. The need for phosphate fertilizer is very urgent. It is sensitive to the reaction of phosphate fertilizer, and the seedling stage is the critical period of phosphorus nutrition. At this time, if the supply of phosphorus is insufficient or severe phosphorus deficiency, both seedlings and seedlings will appear. In the case of drought and cold, there is also the problem of freezing dead seedlings; and after the seedling period, even if the phosphate fertilizer is replenished, the loss caused by this will not be compensated.
Therefore, the appropriate ratio of nutrient to nutrient distribution should be based on phosphorus, with a small amount of nitrogen. Fertilizer varieties can be compound fertilizer or single fertilizer. For example, the commonly used varieties of fertilizers in the northwest and north China wheat regions are diammonium phosphate. In the binary compound fertilizer, diammonium phosphate and nitrophosphate can be used. In the middle and lower reaches of the Yangtze River, the most commonly used varieties are low concentrations. Calcium phosphate and an appropriate amount of ammonium sulfate are preferred. However, urea, ammonium bicarbonate and ammonium chloride are not suitable for seed fertilizer. Since the suitable nutrient distribution ratio of the seed fertilizer is less than the phosphorus and nitrogen, it is generally not necessary to use the high nitrogen compound fertilizer as the seed fertilizer, so as to avoid the problem of the seedlings being weak or burning.
How much is the amount of fertilizer applied? The amount of fertilizer should not be too much. It is necessary to master the principle of less and finer and promote the application of precision. Diammonium phosphate is suitable for 5 kg/mu. Although it is not much in quantity, it can play the role of “four or two poundsâ€; calcium superphosphate should be 8 kg/mu; ammonium sulfate should not exceed 5 kg/mu.
Finally, the application method of the seed fertilizer and the location of the fertilization are also very important. Regardless of whether the machine is broadcasted or the animal is broadcasted, the fertilizer cannot be directly contacted with the wheat. The fertilizer should be applied to the two or three centimeters below the oblique direction of the wheat. It is safe to separate the wheat from the conventional fertilizer.
What fertilizer is applied to the fertilizer? The most needed fertilizer is phosphate fertilizer. The need for phosphate fertilizer is very urgent. It is sensitive to the reaction of phosphate fertilizer, and the seedling stage is the critical period of phosphorus nutrition. At this time, if the supply of phosphorus is insufficient or severe phosphorus deficiency, both seedlings and seedlings will appear. In the case of drought and cold, there is also the problem of freezing dead seedlings; and after the seedling period, even if the phosphate fertilizer is replenished, the loss caused by this will not be compensated.
Therefore, the appropriate ratio of nutrient to nutrient distribution should be based on phosphorus, with a small amount of nitrogen. Fertilizer varieties can be compound fertilizer or single fertilizer. For example, the commonly used varieties of fertilizers in the northwest and north China wheat regions are diammonium phosphate. In the binary compound fertilizer, diammonium phosphate and nitrophosphate can be used. In the middle and lower reaches of the Yangtze River, the most commonly used varieties are low concentrations. Calcium phosphate and an appropriate amount of ammonium sulfate are preferred. However, urea, ammonium bicarbonate and ammonium chloride are not suitable for seed fertilizer. Since the suitable nutrient distribution ratio of the seed fertilizer is less than the phosphorus and nitrogen, it is generally not necessary to use the high nitrogen compound fertilizer as the seed fertilizer, so as to avoid the problem of the seedlings being weak or burning.
How much is the amount of fertilizer applied? The amount of fertilizer should not be too much. It is necessary to master the principle of less and finer and promote the application of precision. Diammonium phosphate is suitable for 5 kg/mu. Although it is not much in quantity, it can play the role of “four or two poundsâ€; calcium superphosphate should be 8 kg/mu; ammonium sulfate should not exceed 5 kg/mu.
Finally, the application method of the seed fertilizer and the location of the fertilization are also very important. Regardless of whether the machine is broadcasted or the animal is broadcasted, the fertilizer cannot be directly contacted with the wheat. The fertilizer should be applied to the two or three centimeters below the oblique direction of the wheat. It is safe to separate the wheat from the conventional fertilizer.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
Cosmetic Eva Cases,Cosmetic Eva Case Box,Hard Shell Storage Tool Eva Case,Portable Makeup Beauty Eva Case
Dongguan C.Y. RedApple Industrial Limited , https://www.hpgbags.com