Effects of humic acid-based buffer + cation on chemical characteristics of saline soils and maize growth
Humic acid is believed to maintain the stability of the soil reaction, adsorption / fixation / chelate of cation, thereby increasing the availability of water and plant nutrients. On the other hand, the dynamics of saline soil cation is strongly influenced by the change of seasons that disrupt water...
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doaj-7b4a25fd89f147798c880047e3be10c72020-11-25T02:25:25ZengUniversity of BrawijayaJournal of Degraded and Mining Lands Management2339-076X2339-076X2014-10-012125926810.15243/jdmlm.2014.021.259Effects of humic acid-based buffer + cation on chemical characteristics of saline soils and maize growthW. Mindari0N. Aini1Z. Kusuma2Syekhfani3Postgraduate Programme, Faculty of Agriculture, Brawijaya University, Jl. Veteran, Malang 65145, Indonesia, and Department of Agriculture, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Jl. Raya Rungkut madya Gunung Anyar Surabaya, IndonesiaDepartment of Agronomy, Faculty of Agriculture, Brawijaya University, Jl. Veteran, Malang 65145, IndonesiaDepartment of Soil Science, Faculty of Agriculture, Brawijaya University, Jl. Veteran, Malang 65145, IndonesiaDepartment of Soil Science, Faculty of Agriculture, Brawijaya University, Jl. Veteran, Malang 65145, IndonesiaHumic acid is believed to maintain the stability of the soil reaction, adsorption / fixation / chelate of cation, thereby increasing the availability of water and plant nutrients. On the other hand, the dynamics of saline soil cation is strongly influenced by the change of seasons that disrupt water and plant nutrients uptake. This experiment was aimed to examine the characteristics of the humic acid from compost, coal, and peat and its function in the adsorption of K+ and NH4+ cations, thus increasing the availability of nutrients and of maize growth. Eighteen treatments consisted of three humic acid sources (compost, peat and coal), two cation additives (K+ and NH4+), and three doses of humic acid-based buffer (10, 20, and 30 g / 3kg), were arranged in a factorial completely randomized with three replicates. The treatments were evaluated against changes in pH, electric conductivity (EC), cation exchange capacity (CEC), chlorophyll content, plant dry weight and plant height. The results showed that the addition of K+ and NH4+ affected pH, CEC, K+, NH4+, and water content of the buffer. Application of humic acid-based buffer significantly decreased soil pH from > 7 to about 6.3, decreased soil EC to 0.9 mS / cm, and increased exchangeable Na from 0.40 to 0.56 me / 100g soil, Ca from 15.57 to 20.21 me/100 g soil, Mg from 1.76 to 6.52 me/100 g soil, and K from 0.05-0.51 me / 100g soil. Plant growth (plant height, chlorophyll content, leaf area, and stem weight) at 35 days after planting increased with increasing dose of humic acid. The dose of 2.0g peat humic acid + NH4+ / 3 kg of soil or 30g peat humic acid + K+ / 3 kg of oil gave the best results of maize growth. http://jdmlm.ub.ac.id/index.php/jdmlm/article/view/97compostcationshumic acidsmaize |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
W. Mindari N. Aini Z. Kusuma Syekhfani |
spellingShingle |
W. Mindari N. Aini Z. Kusuma Syekhfani Effects of humic acid-based buffer + cation on chemical characteristics of saline soils and maize growth Journal of Degraded and Mining Lands Management compost cations humic acids maize |
author_facet |
W. Mindari N. Aini Z. Kusuma Syekhfani |
author_sort |
W. Mindari |
title |
Effects of humic acid-based buffer + cation on chemical characteristics of saline soils and maize growth |
title_short |
Effects of humic acid-based buffer + cation on chemical characteristics of saline soils and maize growth |
title_full |
Effects of humic acid-based buffer + cation on chemical characteristics of saline soils and maize growth |
title_fullStr |
Effects of humic acid-based buffer + cation on chemical characteristics of saline soils and maize growth |
title_full_unstemmed |
Effects of humic acid-based buffer + cation on chemical characteristics of saline soils and maize growth |
title_sort |
effects of humic acid-based buffer + cation on chemical characteristics of saline soils and maize growth |
publisher |
University of Brawijaya |
series |
Journal of Degraded and Mining Lands Management |
issn |
2339-076X 2339-076X |
publishDate |
2014-10-01 |
description |
Humic acid is believed to maintain the stability of the soil reaction, adsorption / fixation / chelate of cation, thereby increasing the availability of water and plant nutrients. On the other hand, the dynamics of saline soil cation is strongly influenced by the change of seasons that disrupt water and plant nutrients uptake. This experiment was aimed to examine the characteristics of the humic acid from compost, coal, and peat and its function in the adsorption of K+ and NH4+ cations, thus increasing the availability of nutrients and of maize growth. Eighteen treatments consisted of three humic acid sources (compost, peat and coal), two cation additives (K+ and NH4+), and three doses of humic acid-based buffer (10, 20, and 30 g / 3kg), were arranged in a factorial completely randomized with three replicates. The treatments were evaluated against changes in pH, electric conductivity (EC), cation exchange capacity (CEC), chlorophyll content, plant dry weight and plant height. The results showed that the addition of K+ and NH4+ affected pH, CEC, K+, NH4+, and water content of the buffer. Application of humic acid-based buffer significantly decreased soil pH from > 7 to about 6.3, decreased soil EC to 0.9 mS / cm, and increased exchangeable Na from 0.40 to 0.56 me / 100g soil, Ca from 15.57 to 20.21 me/100 g soil, Mg from 1.76 to 6.52 me/100 g soil, and K from 0.05-0.51 me / 100g soil. Plant growth (plant height, chlorophyll content, leaf area, and stem weight) at 35 days after planting increased with increasing dose of humic acid. The dose of 2.0g peat humic acid + NH4+ / 3 kg of soil or 30g peat humic acid + K+ / 3 kg of oil gave the best results of maize growth. |
topic |
compost cations humic acids maize |
url |
http://jdmlm.ub.ac.id/index.php/jdmlm/article/view/97 |
work_keys_str_mv |
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