1. Slow growth: when the plant lacks nitrogen, the overall growth will be limited, and the plant will become very small, or even stop growing. There is no trend of vigorous growth of stems and leaves. It looks very thin and spiritless. Stem growth is very thin and very short, branches and tillers are very few, sometimes premature aging occurs.
2. Leaves lose green: the overall color will lose green, and parts of the leaves will start to turn yellow, and will gradually spread backward. Its old leaves will turn yellow green, and even the lower leaves will wither. In addition, withered and yellow leaves will also fall ahead of time.
If the plants raised by ourselves are indeed suffering from nitrogen deficiency, they should be treated as soon as possible, and some nitrogen fertilizer, such as urea and animal manure fertilizer, should be applied to them as soon as possible. It should be noted that, do not impose too much, the plant will not be able to absorb fertilizer damage, according to the appropriate situation to supplement
