A lot of friends leave a message to me, how did his plant leaf fizzle out to do? But without the picture, the simple introduction of daily without oneself also conserve, I also am the judgement that do not have a law what reason is caused, the flower is so friendly people the detail that when quizing, must notice to write clear conserve, ability is aimed at solve Xie Huang problem, had better be the query that take a picture.
Plant leaf fizzles out to basically have 4 big reasons, include: Water enroach on of undeserved, ill bug, illumination unsuited, fertilization is undeserved.
(the bird's nest brake of bug of long Jie carapace, leaf is withered and yellow)
Healthy plant lamina is green, because foliaceous cell produces enough chlorophyll, if conserve is undeserved, do not have a law to undertake photosynthesis, leaf lacks chlorophyll to be able to become yellow.
We sum up all sorts of reasons with plant yellow leaf below:
1, the plant lacks water:
The plant is short of water to include soil too dry with air dry, namely humidity is insufficient, cause leaf easily withered and yellow, meet badly wither, soil is dry, root system cannot imbibe, air is dry, blade does not absorb moisture, the Laoxie on plant can become yellow slowly, desiccate.
Settle way very simple, branches and leaves of will all blasted is cut off, soil is irrigated show water, air is dry and OK in all round proper gush water is added wet, improve ventilated environment.
2, pest enroach on
If appear on leaf,mix like bug of carapace of cootie of aphid, whitening, Jie red spider, leaf fizzles out changeably with respect to the look, the meeting on blade bestrews all sorts of blob, insect is very small commonly, and it is to hide in foliaceous back or axillary place, a lot of pests absorb floral juice to grow, the plant is changed yellow by blot wither.
Discover insect pest wants seasonable gush to kill, insect pest is in larva period to prevent and cure the most easily, imago hind eradicates very hard, want to often examine floral state so.
3, disease:
Plant conserve undeserved or plant is not quite hale, easy incur disease, especially fungus infection, wait like disease of common leaf spot, anthrax, stain can appear on blade, rectify a leaf gradually withered and yellow, and different plant, the disease that contracts easily is different also.
Discover ill leaf wants to prevent and cure in time, also want to notice fixed precaution at ordinary times, regular in season is antiseptic drug, ill leaf is too serious, want to cut off destroy by melting or burning, regular in season is antiseptic medicine.
4, illumination is undeserved Xie Huang
Summertime temperature is exorbitant, illumination is too strong, it is easy that the plant is basked in too much cause Xie Huang wither, a few meaty plants are basked in more, change water or black corrupt easily in the morning.
And if conserve environment is too dark, so the plant does not have a law to undertake photosynthesis, the photosynthesis that do not have a law, leaf can become yellow.
Major potted plant wants the summer proper and shady, afternoon or sunshade network is helped when midday, also cannot raise these vegetables for a long time of course in dark place, at least also should make sure conserve light is bright.
5, fertilizer is insufficient:
If soil lacks nitrogenous fertilizer for a long time, so floral lamina slants very easily yellow, create yellow part of a historical period of the sex that be short of fertilizer easily.
OK and proper complement is average the manure with azotic fat or higher content is supplementary, but also should notice dosage, cannot pass thick.
6, edaphic PH value:
Major plant is the soil that likes small acidity or neutral, if soil slants alkaline, so the plant absorbs the iron element in soil very hard, can create yellow part of a historical period of the sex that be short of iron, beautiful like common gardenia, raise in north, natural environment is to slant alkaline, cause Xie Huang very easily, because soil slants,normally is alkaline.
The PH that can irrigate vitriolic ferrous to improve soil is worth, avoid soil to slant alkaline, use the organic fertilizer of compost earth, turfy earth and become thoroughly decomposed of course, can improve edaphic acid-base value.
