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答山东省临朐县读者王西杰9月份果实采收后,根系有一个第3次生长高峰, 这次高峰持续时间较长,直至土温降到7℃根系才停止 生长,而且至0℃才停止吸收,因此秋施基肥不仅断根 当年可以愈合,而且根系供应充足无机盐和水分,有利 落叶前叶片的光合作用,以制造养分用于贮藏,为翌年 发?
A Wang Linjie, Lintao County, Shandong Province After the fruit was harvested in September, the root system had a third peak of growth. The peak lasted for a long time until the soil temperature dropped to 7 ℃. The root system stopped its growth until it stopped at 0 ℃ , So autumn base fertilizer not only cut roots that year can heal, but the root supply of adequate salt and water, leaves favorable leaf photosynthesis, in order to create nutrients for storage, the following year hair?