Generally speaking, the demand is relatively large. However, it also depends on the seasons. That is to say, the period of great demand is mainly the period of vigorous growth.
The first is the concentration of fertilizer. If it is too thick, it will not promote its growth and flowering, but will cause harm. Therefore, the times can be more appropriate, but the concentration must not be too high. In addition, the amount and times of fertilization should be adjusted according to the change of time and the change of temperature.
(1) first of all, talk about the fast growing season. We need to apply organic fertilizer every half a month or so. Of course, the concentration should be thinner.
(2) in the stage after the emergence of flower bud, it is necessary to add some 0.2% solution (KH2PO4) into the applied fertilizer water, so as to meet the plant's demand for flower fertilizer in the flowering period.
(3) in the end of autumn and even in winter, because the temperature is relatively low and there is no need for fertilizer, we need to gradually reduce the amount of fertilizer at this time. In winter, we can not apply fertilizer directly.
(4) it should be noted that if the temperature is higher than 35 ℃ or lower than 15 ℃, fertilization should be suspended.
(1) when applying fertilizer, we should pay attention not to get fertilizer and water on the leaves of plants, or it will cause some diseases.
(2) if the leaves turn yellow, you can add some (FeSO4) to the fat water to help alleviate