Avoid fertilization high summer heat, leaves faster water loss, this time fertilization can make the concentration of the body fluid in the pile is less than the concentration of the external environment, resulting in plant cell water flow reverse soil, piles due to water loss and damage. Drought avoids watering up, not remembering not to water, and sometimes it does not matter for a few days. Once you find that the leaves are wilting, you will quickly replenish the water and the foliage will return to normal. This is a response of the pile to the environment, but in the long term, the excessive transpiration will eventually make the pile harder and dehydrated. Avoid waterlogging mistakenly think that the high temperature watering period is beneficial to the growth of the piles. It does not know how many times a day, the basin soil humidity is too large, the root system is in an anaerobic state for a long time, resulting in excessive accumulation of alcohol, the root of the pile absorbs water and inorganic salts. The minerals were depleted and eventually drowned. Avoid sunburn When the ambient temperature exceeds 28°C, the bonsai should be shaded. Otherwise, the amount of water obtained by the pile from the soil is far lower than the water lost due to transpiration. The light leaves are burned and scorched, and the heavy piles are burned and die. Avoid shading under normal circumstances, in order to avoid high temperature damage, when the ambient temperature exceeds the maximum temperature limit of the pile, the bonsai should be moved to the light low temperature zone, about 2 °C lower, in order to facilitate the growth of the pile, but if suddenly will It moves to indoor or lower temperature areas. After a few days, the leaves will fall off and the stumps will shrink.