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研究表明,混剂土加施不同介质,可以不同程度地改变苗木周围的土壤水分、温度和通气条件,对苗木成活和根系发育产生一定影响.介质材料的适用性依造林季节、气候干湿状况和使用的吸水剂比例而异.春旱的年份,以加施泥炭的效果为好,但如果气候正常,所用吸水剂比例又不高,除泥炭外,还可切用锯末.雨季采用较低的吸水剂比例造林.侧柏不必加施介质,油松可用蛭石,锯末,并用较高的吸水剂比例造林.一般侧柏可加施蛭石、锯末,油松除蛭石,锯末外,还可用泥炭.混剂土中加施马粪在各种情况下效果均不理想.
The results showed that mixed medium with different media can change the soil moisture, temperature and aeration conditions around the seedlings to varying degrees, which have some effects on the survival of seedlings and root development. The applicability of the media is in accordance with the afforestation season, climate dry and wet conditions And the proportion of water-absorbing agent used in the spring drought years to add the effect of peat as well, but if the climate is normal, the proportion of water-absorbent used is not high, in addition to peat, but also cut with sawdust. Of water-absorbing agent ratio afforestation.PET does not have to add medium, pine can be used vermiculite, sawdust, and with a higher proportion of water-absorbing afforestation.Periporrhizum generally can be applied vermiculite, sawdust, pine addition to vermiculite, sawdust, Peat can also be used. Mixed soil plus horse manure in all cases the effect is not satisfactory.