Research on using biological material for revegetation on slope land

Abstract

The efficacy of using biological materials containing two Arbuscular mycorrhizae strains, Gigaspora sp6 and Dentiscutata nigra, integrated with polyester-covered membrane in revegetation on slope land has been proven ferralitic soils with a slope of 15o . After 3 weeks of monitoring the growth rate of seedlings, it was seen that the seedlings appeared through the membrane in the treatment formula (CT2) while the seedlings were not appearing in the CT1 formula (control) without using the membrane covering. With a moisturising layer consisting of organic materials in the middle and an external mesh structure, the membrane covering created good conditions of moisture, temperature and light for the development of the seedlings. This feature of the covering membrane would facilitate biological materials to maximise the efficiency of revegetation. Biomassintegrated biological materials had a positive effect on plant growth and development; the height of Mucuna pruriens in CT2 was about 2 to 4 times higher as compared with the control at the time of observation. The leaf area index (LAI) at week 2 of the experimental formula was 3.67 times higher than the control. The process of using biological materials integrated with covering membrane is simple and easy to apply, including 3 main steps as follows (i) Checking the quality of biological materials - ensuring the best growth of plants and Arbuscular mycorrhizae; (ii) Adding seeds (if any) - seeds must have good germination and short germination time; (iii) Integrating the covering membrane - which has the effect of moisturising and limiting erosion and leaching