西洋参微喷灌技术的试验研究

Studies on Micro-Sprinkling Irrigation Technique for Panax Quinquefolium L.

对采用微喷灌技术及土壤湿度计不同负压值下开始灌水对西洋参存苗,生长发育和产量的影响进行了综合评价,找出了由土壤湿度计显示,适时灌水的最佳负压值指标,为西洋参合理灌溉获高产及微灌自动化提供了科学依据。 通过5种微喷系统的水力学、经济技术性能比较,指出了各系统的优劣及投资大小,为不同经济条件的用户选择适合的微喷系统,因地制宜地推广应用提供了方便。

The comparisons of hydraulics function and economic and technique efficiency in five different microsprinkling irrigation systems for Panax Quinquefolium L were made. The advantage and disadvantage of each system were analyzed and the cost invested were evaluated, to provide a basis for various users in different conditions to select appropriate microsprinkling irrigation systems.The seedling survival, growth and yield of Panax Quinquefolium L. were observed and analysed related to the technique of microsprinkling irrigation and the time of beginning to irrigate under different negative pressure read from soil humidometer. The irrigation index of the optimum value of negative pressure of soil humidometer which can be used to instruct irrigation schedule was obtained. These results would provide scientific data for proper irrigation and automation of microirrigation for Panax Quinquefolium L.