According to the test results of agricultural researchers, the effect of urea application on winter and spring crops is not as good as that of ammonium bicarbonate. This is because after the application of ammonium bicarbonate in the winter and spring crops, the growth rate of the crop is fast and the loss is small, while the urea application has a slow growth rate and a large loss. Its specific is:
First, the effect of ammonium bicarbonate is faster than that of urea: due to the low temperature in winter and spring, urea can not be directly absorbed and utilized by the crop after it is applied to the soil, but must pass through the urea enzyme in the soil before being absorbed by the crop. The conversion process generally takes 10-12 days), which is not conducive to the early growth of winter and spring crops; while ammonium bicarbonate does not need to go through this transformation process, it can be directly absorbed, so the fertilizer effect will come quickly. Therefore, whether the winter and spring crops are used as base fertilizer or top dressing, the fertilization effect of iron bicarbonate is much faster than that of urea.
Second, the ammonium bicarbonate fertilizer efficiency loss is smaller than urea. Hydrogen carbonate is generally stable at temperatures below 15 ° C, and has less volatile loss. After being applied to the soil in winter and spring, it is decomposed into ammonium ions and ammonium hydrogencarbonate ions. Because the ammonium ion is positively charged, it can be directly adsorbed by the soil colloid (with negative electricity), and then slowly released, which can be absorbed and utilized by the crop in time, so the loss of fat is not lost. However, urea is not. When winter and spring are applied to the soil, urea is dissolved in the soil solution in a molecular state and cannot be adsorbed by the soil colloid. This will easily cause loss of fertilizer.
To this end, it is recommended that farmers friends, in the winter and spring vegetable cultivation, in order to make vegetables early market, to seize the time difference benefits and reduce cultivation costs, please choose ammonium bicarbonate.
Excerpt from: Hubei Science and Technology News
First, the effect of ammonium bicarbonate is faster than that of urea: due to the low temperature in winter and spring, urea can not be directly absorbed and utilized by the crop after it is applied to the soil, but must pass through the urea enzyme in the soil before being absorbed by the crop. The conversion process generally takes 10-12 days), which is not conducive to the early growth of winter and spring crops; while ammonium bicarbonate does not need to go through this transformation process, it can be directly absorbed, so the fertilizer effect will come quickly. Therefore, whether the winter and spring crops are used as base fertilizer or top dressing, the fertilization effect of iron bicarbonate is much faster than that of urea.
Second, the ammonium bicarbonate fertilizer efficiency loss is smaller than urea. Hydrogen carbonate is generally stable at temperatures below 15 ° C, and has less volatile loss. After being applied to the soil in winter and spring, it is decomposed into ammonium ions and ammonium hydrogencarbonate ions. Because the ammonium ion is positively charged, it can be directly adsorbed by the soil colloid (with negative electricity), and then slowly released, which can be absorbed and utilized by the crop in time, so the loss of fat is not lost. However, urea is not. When winter and spring are applied to the soil, urea is dissolved in the soil solution in a molecular state and cannot be adsorbed by the soil colloid. This will easily cause loss of fertilizer.
To this end, it is recommended that farmers friends, in the winter and spring vegetable cultivation, in order to make vegetables early market, to seize the time difference benefits and reduce cultivation costs, please choose ammonium bicarbonate.
Excerpt from: Hubei Science and Technology News
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