1、 Symptoms of nitrogen deficiency

1. Slow growth: when the plant is short of nitrogen, the overall growth will be limited, and the plant will become very short, or even stop growing. The stems and leaves do not have the trend of vigorous growth. They look very thin and spiritless. The stem grows very thin and short, branches and tillers are very few, and premature senescence sometimes occurs

2. Leaf loss of green: the overall color will lose green, and the non part of the leaf will begin to turn yellow and gradually spread backward. Its old leaves will also turn yellow green, and even the leaves at the lower end will wither. In addition, the withered and yellow leaves will also fall in advance

2、 Treatment method

If the plants raised by themselves do have the symptoms of nitrogen deficiency, they should be treated as soon as possible and some nitrogen fertilizer should be applied to them at the first time, such as urea and animal manure fertilizer, which can be used. It should be noted that do not apply too much suddenly. If the plant cannot absorb it, there will be fertilizer damage. It should be supplemented appropriately according to the situation