摘要:
以井窖式移栽为对照,通过零星雨水利用、减工降本、节水抗旱、烟株长势、后续补水和定量追肥等方面对膜下集雨抗旱移栽技术进行系统分析比较,以期为膜下集雨抗旱移栽技术在贵州西部烟区大面积推广提供依据.结果表明:该技术能将3~4月的零星无效降水变为有效降水,蓄集雨水就地利用,缩短育苗周期,省去打孔移栽环节,并可长久保持土壤墒情,烟株长势较好,可为后续补水、补肥提供便利.该技术具有较高的推广应用价值,但仍存在一些问题,可改进和完善后推广.%In order to provide the basis for the application of drought-resistance transplantation technology in tobacco production in western Guizhou province,rainwater collection under mulch film and transplanting technology were analyzed and compared from the aspects of sporadic use of rainwater,water-saving and drought-resistance,reduce work and cost,Subsequent filling water,quantify topdressing,etc,well-cellar transplanting technique was taken as control.The results showed that:the technology could change the scattered invalid sporadic rainwater during March and April into effective precipitation,and the accumulated precipitation could be used at situ,seedling stage was reduced,the cost of rainwater harvesting equipment was reduced,soil moisture could be kept longer,the tobacco plant growth was better,the following irrigation and fertilization were more facilitated.This technology has good use value,but there are still some problems that need to be further improvement and perfection for generalization.