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开挖树坑时将表土

网址:www.dzyangguang.com.cn  2022-04-19  作者:admin    阅读:

开挖树坑时将表土(浅层土)放成一堆,将心土(深层土)另外放成一堆,不要将表土和心土混放,为以后的栽植做好填土准备。树坑挖好后,第一步不是先放树苗,而是先将基肥放在树坑的最下层,然后将表土碾碎,平整、均匀地放在肥料上,这样树苗的根部不直接接触肥料,碾碎的表土又为根部提供了向下生长、扩展舒张的良好条件,这是第一“埋”,埋的是肥料和表土。
"Three buries, two steps and one seedling lifting" is a scientific tree planting method advocated by the forestry technology department. This planting method includes three times of burying soil, two times of stepping on Soil and one time of lifting seedlings upward. The key points of specific planting technology are as follows: when excavating tree pits, put the topsoil (shallow soil) into a pile and the core soil (deep soil) into another pile. Do not mix the topsoil and core soil, so as to prepare for filling for future planting. After the tree pit is dug, the first step is not to put the saplings first, but to put the base fertilizer on the lowest layer of the tree pit first, and then crush the topsoil and put it on the fertilizer flat and evenly. In this way, the roots of the saplings do not directly contact the fertilizer, and the crushed topsoil provides good conditions for the roots to grow and expand downward. This is the first "burying", which buries the fertilizer and topsoil.
接着放入树苗。树苗放入后进行第二埋,就是培入心土,在培土到一半时,暂停培土,将树苗稍微向上提一下,这叫“一提苗”,目的是防止树苗窝根,影响成活和生长。提苗后,不要立即埋土,这时要将已埋的土向下踩实,目的是使树苗的根须和土壤紧密接触,尽快吸收水分和营养元素,以便扎根生长。有利于树木的成活和生长。接着进行第三埋,就是将剩下的心土埋入,一直埋到与地面平齐,进行第二次踩实,目的是使树苗树干挺直,也使树苗与土壤紧密结合,以防被风吹斜。
Then put in the saplings. The second burial after the saplings are put in is to cultivate them into the heart soil. When the soil is half cultivated, suspend the soil cultivation and lift the saplings up a little. This is called "raising the saplings". The purpose is to prevent the saplings from nesting roots and affecting the survival and growth. After raising the seedlings, do not bury the soil immediately. At this time, step down the buried soil to make the roots of the seedlings in close contact with the soil and absorb water and nutrient elements as soon as possible, so as to take root and grow. It is conducive to the survival and growth of trees. Then carry out the third burial, that is, bury the remaining core soil until it is flush with the ground, and step on it for the second time. The purpose is to make the trunk of the saplings straight and closely combine the saplings with the soil, so as to prevent them from being tilted by the wind

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