论文部分内容阅读
电子叶间隙喷雾是通过一种特制的感湿元件——电子叶,随时把插穗叶面的水分变化情况,以微小的电信号输入电子继电器,使电磁阀门随时启闭,喷头时喷时停,保证插穗在全光下有足够的水份供应,促进发根成活.1981年我校利用电子叶间歇喷雾苗床,于夏、秋两季进行了三批嫩枝扦插,计21个品种,5000多插穗,大部分10天左右发根,25—30天成苗出圃,插条成活率达95%以上.为了进一步探索扦插基质对发根成活的影响,在(石至)石供应不足的情况下,采用来源丰富,成本低廉的砻糠灰、碳屎渣、上冈细砂、煤炭作为基质,并以校园内5年生的悬铃木当年新枝,进行扦插试验,25天后检查扦插成活率,结果以(石至)石、砻糠灰为最好,碳屎渣次之,细砂、煤炭因透水性差,导致根部腐烂而全部死亡;移栽后一个月成活株数以砻糠灰最佳,(石至)石次之.现将试验结果报道如下:
Electronic leaf gap spray through a special sense of wet components - electronic leaves, cuttings at any time leaves the water changes in the situation, a small electrical signal into the electronic relay, the solenoid valve at any time open and close, when the nozzle spray stopped, To ensure cuttings in full light, adequate water supply, promote hair root survival.In 1981 I use electronic leaflet intermittent spray seedbed, summer and autumn two batches of tender shoots, counting 21 varieties, more than 5000 Cuttings, most of the hair roots about 10 days, 25-30 days into nursery seedlings, cuttings survival rate of more than 95% .In order to further explore the cutting matrix on the survival of hair roots, stone () to stone in the case of inadequate supply, Use of rich sources, low-cost chaff ash, carbon residue, slag on the Gang, Shanggang fine sand, coal as a substrate, and 5-year-old students in the campus of the new branches of Plaitwood, cutting test 25 days after the test cuttings survival rate, the results of (stone To stone), chaff ash is the best carbon residue second, fine sand, coal due to poor water permeability, resulting in root rot and all died; transplanted one month after the survival of the number of chaff ash gray best (stone to) Stone times.The test results are reported as follows: