What if the leaves of peach trees turn yellow?
1. Foliar topdressing
(1) the specific reason: if the pruning is too much, there are few branches and leaves left in the aboveground part, then the aboveground and underground parts will lose balance. In turn, the decline of a large number of roots will lead to overall malnutrition. If this is the time to grow rapidly, it may cause the leaves to turn yellow.
(2) solution: foliar topdressing with 0.3% concentration of urea once a week, three times in a row.
2. Spraying to deal with diseases and insect pests
(1) specific reasons: such as "root cancer", "root knot nematode" and so on, can lead to yellowing of leaves.
(2) solution: after discovery, cut off the parts affected by diseases and insect pests in time, and then spray chemicals, such as Bordeaux liquid.
3. Provide sufficient light
(1) specific reasons: lack of light, chlorophyll can not be formed, leaves may turn yellow, but also may become thinner.
(2) solution: let the plant receive enough sunlight as much as possible. In addition, attention should be paid to pruning to increase the transmittance.
4. Adjust the water balance
(1) specific causes: drought and waterlogging may cause leaves to turn yellow, or even die.
(2) solution: when the rainfall is very small, or when entering the rainy season, different measures need to be taken, watering in the early stage and drainage in the later stage, in order to adjust the water balance.
5. Thinning flowers and fruits
(1) specific reasons: if there is too much and too much weight, there will be insufficient nutrients and yellow leaves will appear.
(2) solution: do not only pursue output, but also need to thinning flowers and fruits and bearing a reasonable load.
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What if the leaves of asparagus turn yellow?
There are many reasons for the yellowing of asparagus leaves: if it is not watered for a long time, water it, if it is caused by too much watering, loosen the soil, raise the flowerpot and put it in a ventilated place, if it has not been changed for a long time, replace it with new nutritious soil, and if the light is too strong, move it to a place where the room will not be exposed to the sun for maintenance.
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What if the lemon leaves turn yellow?
There are four main situations in which lemon leaves turn yellow. The first is iron deficiency or nitrogen deficiency, which needs targeted supplement. Second, insufficient nutrition, need to supplement fertilizer, generally need to be sprayed. The decay of the third root system is most likely caused by stagnant water. It is necessary to clean up the rotten roots and cover the soil after the wound heals. Fourth, there are insect pests, the corresponding chemicals need to be sprayed.
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