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以栓皮栎(Quercus variabilis Blume)容器苗为研究对象,采用两种容器规格(D60容器和D40容器)进行底部渗灌和上方喷灌处理,研究底部渗灌对栓皮栎容器苗生长状况与营养元素含量的影响。结果表明:与上方喷灌处理相比,底部渗灌下的栓皮栎容器苗至少节约63.35%的灌溉水,苗高和地径至少提高10.00%,生物量提高18.40%以上,单株养分含量比上方喷灌显著提高18.00%以上,养分浓度提高至少17.00%;容器规格的增加可以提高苗高、地径、生物量和单株的氮、磷、钾含量。因此,底部渗灌不仅是一项节水和降低污染的灌溉技术,而且能培育出比上方喷灌质量更好的苗木。
Taking the container seedlings of Quercus variabilis Blume as the research object, two kinds of container specifications (D60 container and D40 container) were used to carry out bottom seepage irrigation and top irrigation. The effects of bottom seeping irrigation on the growth status and nutrient content of Quercus variabilis Blume Impact. The results showed that compared with the top sprinkler irrigation, the seedlings of Q. variabilisat least 63.35% of irrigation water were irrigated at the bottom, the seedling height and diameter were increased by at least 10.00% and the biomass was increased by more than 18.40% Sprinkler irrigation increased significantly by 18.00% and nutrient concentration increased by at least 17.00%. The increase of container size could increase the seedling height, diameter, biomass and nitrogen, phosphorus and potassium content of single plant. Therefore, bottom infiltration is not only a water-saving and pollution-reducing irrigation technology, but also nurture seedlings of better quality than above.