Soil water retention and plant growth response on the soil affected by continuous organic matter and plastic mulch application

1st International Conference on Food Security and Sustainable Agriculture in The Tropics

农业科学;经济学

Rasyid, B.^1,2 ; Oda, M.^1 ; Omae, H.^1

Tropical Agriculture Research Front (TARF), Japan International Research Center for Agricultural Sciences (JIRCAS), 1091-1 Maezato-Kawarabaru Ishigaki, Okinawa

907-0002, Japan^1

Dept. of Soil Science, Fac. of Agriculture, Hasanuddin University-Indonesia, Kampus Unhas Tamalanrea, Jl. Perintis Kemerdekaan, Makassar

90245, Indonesia^2

关键词: Plant growth response;    Plant production;    Planting seasons;    Pressure plate apparatus;    Soil organic carbon and nitrogen;    Soil water availability;    Soil water retention;    Water retention;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/157/1/012008/pdf
DOI  :  10.1088/1755-1315/157/1/012008

学科分类：农业科学（综合）

来源: IOP

【 摘 要 】

Soil-water and plant growth interaction is a primary key to develop environmental plant production system. The objective of this research is to evaluate change in soil water retention characteristics and plant response as the effect of continuous organic matter and plastic mulch application. The experiment was conducted in the plastic house field with plot size of 5 m (length) x 1 m (width). The field had treatments of plastic mulch type (mesh and poly) and no mulch, nitrogen (0, 10 and 40 kg N ha-1), and 2 ton ha-1organic matter (incorporated into all plots). Water retention measurement using sand box method for low suction and pressure plate apparatus was applied for high suction. Completely randomized block experimental design and Duncan-MRT were used to analysis the effect of treatment on the parameters. Soil organic carbon and nitrogen increased slightly in both mulch types, but C:N ratio decreased in poly mulch which had the lowest value during two planting season. Various change in soil water retention was shown in different mulch type with mesh mulch had the highest result on lower suction, and control was the lowest water retention on the high suction. Soil water availability was highest in mesh mulch type followed by control and poly mulch type. This study could conclude that continuous incorporation of organic matter and mesh-plastic mulch was useful in achieving environments to improve soil C:N ratio and soil water retention.