Open AccessIntensifying of reflected radiation under oil palm canopy and its effect on growth and production of soybean
Author(s) -
Taufan Hidayat,
Yonny Koesmaryono,
Impron,
Munif Ghulamahdi
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/365/1/012001
Subject(s) - mulch , leaf area index , intercropping , agronomy , canopy , interception , photosynthetically active radiation , environmental science , biomass (ecology) , shading , palm oil , horticulture , mathematics , photosynthesis , biology , agroforestry , botany , art , ecology , visual arts
The main problem of cultivating soybeans under the stands of oil palm plantations in the low intensity of solar radiation. The aim of this study was to analyze the effect of reflective mulch application on the growth, physiology, and production of soybeans cultivated as intercropping under oil palm plantation stands. The study was carried out at Cimarga Banten Indonesia using a two-factor randomized nested design with three replications. The treatments consist of two factors, viz different age of oil palm stands and types of reflected mulches. The use of reflective mulch would increasing albedo, as well as in intensifying reflected radiation of land surface by 29% for organic mulch and by 49% for inorganic mulch. The application of organic and inorganic reflective mulches could increase the interception of solar radiation by soybean plants and had positive effects on height, stem diameter, leaf area index, biomass, and radiation use efficiency. The use of organic reflective mulch increased the amount of relative leaf chlorophyll in shaded conditions and the amount of chlorophyll in the upper, middle and lower position leaves. Organic and inorganic reflective mulches had a significant effect on increasing the number of fill pods, production, and weight of 100 soybean grains.