鱼在多少光照强度下最适应生长呢

zhangtao940102

顶2333

Zdxx

galaxy_jun

有一个相对标准的答案，出处是llifle的Lophophora williamsii，应该能解答你的问题，摘抄内容如下（请自行翻译）：
Cultivation and Propagation: All Lophophora species are extremely slow growing, often taking up to thirty years to reach flowering age in the wild (about the size of a golf ball, not including its root). Human cultivated specimens grow considerably faster, usually taking from six to ten years to go from seedling to mature flowering adult.
Because of the tap root they are very rot prone, so use highly gritty compost with much drainage. Requires half shade to part sun. Waterings should be rather infrequent to keep the plant compact and not to become excessively elongated and unnatural in appearance, watering it properly is often difficult because this plant tends to crack open or rot if over-watered. The fact that the plant retracts into the soil and assume a grey-green colouring between watering, is perfectly natural and doesn’t cause any damage.
Overwatering: Keep completely dry and cool in winter (An unheated greenhouse would be perfect) or when night temperatures remain below 10° C, it can survive low temperatures (appr. -7°C) for a short period. Assure a good ventilation.