Open AccessEffect of shading on availability and nutrient balance in soils planted with Asystasia gangetica (L.) T. Anderson as cover crop
Author(s) -
Yenni Asbur,
Yayuk Purwaningrum,
. Mindalisma
Publication year - 2020
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 - 10.1088/1755-1315/454/1/012141
Subject(s) - shading , randomized block design , nutrient , environmental science , agronomy , crop , mathematics , zoology , horticulture , biology , ecology , art , visual arts
This study aimed to examine the role of A. gangetica as cover crops in increasing the availability and nutrient content of N, P, K in the soil on the nutrient balance under with shade and without shade conditions. The experiment was conducted in Experimental Farm, Faculty of Agriculture, UISU, Gedung Johor Medan, Indonesia from February 2018 to June 2018. The research method is a non-factorial randomized block design with shading as treatment and six replications. Treatment consists of without shade and with shade 50%. A. gangetica was planted using stem cuttings measuring 15 cm or two segments with a spacing 20 cm x 20 cm and on a plot size of 2 m x 2 m. The shade is paranet 50%. Urea is given at a dose of 150 kg/ha. The results showed that A. gangetica as a cover crop, both in conditions without shade and with shade 50%, was able to increase the available N, P, K soil based on the nutrient balance, namely 16.25%, 86.33%, and 426.99% respectively in treatments without shade, and 13.10%, 171.06%, and 560.43% respectively in shade 50% treatment.