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早在1976年时,我区曾有人对泡桐埋根造林技术做过试验,当时主要在平原灌区的畦梁上应用过。1984年,我们在蒲城县平路庙乡第一次将埋根造林直接应用在农桐间作上,试验面积13.3公顷,并结合应用了河南农学院“泡桐速生丰产,培育无病壮苗技术”。取得了显著效益。具体做法是;选用豫杂一号桐根,根粗1.5—2厘米,长15厘米左右。凉晒1—2天后,于3月下旬上床催芽,在气温为20—30℃时,约10天左右即可露自,一般15天可全部露白。埋根坑深100厘米,宽60—80厘米,内施30—40公斤土肥、0.5—1公斤磷肥。栽植采用两种密度:一种是农桐并重
As early as 1976, some people in our district had experimented with the planting technology of Paulownia planting and rooting, which was mainly used on the beam of the plain irrigation area. In 1984, for the first time in Pingluo Miaoxiang County, Pucheng County, we planted the rooted afforestation for the first time on the intercropping of Agropyron natans, with a test area of 13.3 hectares. In combination with the application of “fast-growing and high-yield Paulownia, ”. Achieved significant benefits. The specific approach is; choose Yu hybrid root number one root rough 1.5-2 cm, length 15 cm or so. Cool the sun 1-2 days later, go to bed in late March sprouting, the temperature is 20-30 ℃, about 10 days can be exposed from the general 15 days can be all exposed white. Buried root pit 100 cm deep, 60-80 cm wide, within the facilities 30-40 kg of soil fertilizer, 0.5-1 kg of phosphate fertilizer. Planting using two kinds of density: one is agaric and both