(1) specific reason: no matter the water is too much or too little, it may make the leaves of hyacinth turn yellow. In the former case, the young leaves turn yellow and the old leaves almost remain unchanged. In the latter case, the old leaves will wither and the new ones will remain unchanged. According to this, we can judge whether the water is more or less
(2) solution: after determining which situation, corresponding measures must be taken. If there is too much water, it needs to be watered strictly. If it is serious, it needs to take off the basin and put it in a cool place to dry for a period of time before putting it on again. If the water is too little, increase the amount of water properly
(1) specific reason: too much or too little fertilizer is not enough. Too much or too much concentration, easy to cause fertilizer damage, so that the leaves turn yellow. Small amount, the plant can not get fat, but also make the leaves yellow.
(2) solution: first, judge the situation. Then, if there is too much fertilizer, stop fertilizing and wash it with proper amount of water. If the fertilizer is too little, the thin fertilizer should be applied frequently, and the basin should be changed.
(1) specific reason: if the light is too strong, it is easy to burn the leaves and make them yellow, which is called "burn yellow".
(2) solution: put it in a cool and ventilated place in time. Wait until normal, and then provide scattered light
(1) specific reason: if the cultivated soil is alkaline, or the water quality used for watering is alkaline, the leaves may turn yellow.
(2) solution: in addition to soil replacement and water pouring, ferrous sulfate can also be used.
