Nitrogen Nutrition of Some Local Rice Varieties Grown without Fertilizer on Acid Sulphate Soil Area in South Kalimantan
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<dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><title lang="en-US">Nitrogen Nutrition of Some Local Rice Varieties Grown without Fertilizer on Acid Sulphate Soil Area in South Kalimantan</title><creator>Purnomo, Erry; Center for Tropical Adverse Soils Studies, Study Program of Natural Resource Management, Post Graduate Program, Lambung Mangkurat University, Gedung I, Banjarbaru, South Kalimantan, 70714</creator><creator>Hasegawa, Toshihiro; National Institute for Agro-Environmental Science, Tsukuba, Ibaraki, Japan</creator><creator>Hashidoko, Yasuyuki; National Institute for Agro-Environmental Science, Tsukuba, Ibaraki, Japan</creator><creator>Saputra, Presto J; Center for Tropical Adverse Soils Studies, Study Program of Natural Resource Management, Post Graduate Program, Lambung Mangkurat University, Gedung I, Banjarbaru, South Kalimantan, 70714</creator><creator>Osaki, Mitsuru; National Institute for Agro-Environmental Science, Tsukuba, Ibaraki, Japan</creator><subject lang="en-US"/><subject lang="en-US">N content; N mineralization; N uptake; plant top biomass</subject><description lang="en-US">Banjarese farmers in South Kalimantan apply a very minimum nitrogen (N) fertilizer in growing local rice. This practice has been adopted for many years. Yet, the grain yield level at farmers’ field is not necessary low. We are questioning about N sources for the crop. This study only focuses on measuring net N mineralization in association with N uptake. We grew three rice varieties at four sites in rice growing area of South Kalimantan. The net N accumulation in soil and water, plant top biomass, N concentration of plant tissue and N uptake were measured on monthly basis. The results showed that all rice varieties grown in the 4 locations took up more N than from N mineralized from the organic matter. The higher N in the crop indicates that there are other sources of N for the local rice such as N fixed by microorganisms.</description><publisher lang="en-US">UNIVERSITY OF LAMPUNG</publisher><contributor lang="en-US"/><date>2009-01-01</date><type>Journal:Article</type><type>Other:info:eu-repo/semantics/publishedVersion</type><type>Journal:Article</type><type>Other:</type><type>File:application/pdf</type><identifier>http://journal.unila.ac.id/index.php/tropicalsoil/article/view/346</identifier><identifier>10.5400/jts.2009.v14i1.41-47</identifier><source lang="en-US">JOURNAL OF TROPICAL SOILS; Vol 14, No 1: January 2009; 41-47</source><source>2086-6682</source><source>0852-257X</source><source>10.5400/jts.2009.v14i1</source><language>eng</language><relation>http://journal.unila.ac.id/index.php/tropicalsoil/article/view/346/426</relation><coverage lang="en-US"/><coverage lang="en-US"/><coverage lang="en-US"/><rights lang="en-US">Copyright (c) 2018 JOURNAL OF TROPICAL SOILS</rights><recordID>article-346</recordID></dc>
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| language |
eng |
| format |
Journal:Article Journal Other:info:eu-repo/semantics/publishedVersion Other Other: File:application/pdf File Journal:eJournal |
| author |
Purnomo, Erry; Center for Tropical Adverse Soils Studies, Study Program of Natural Resource Management, Post Graduate Program, Lambung Mangkurat University, Gedung I, Banjarbaru, South Kalimantan, 70714 Hasegawa, Toshihiro; National Institute for Agro-Environmental Science, Tsukuba, Ibaraki, Japan Hashidoko, Yasuyuki; National Institute for Agro-Environmental Science, Tsukuba, Ibaraki, Japan Saputra, Presto J; Center for Tropical Adverse Soils Studies, Study Program of Natural Resource Management, Post Graduate Program, Lambung Mangkurat University, Gedung I, Banjarbaru, South Kalimantan, 70714 Osaki, Mitsuru; National Institute for Agro-Environmental Science, Tsukuba, Ibaraki, Japan |
| title |
Nitrogen Nutrition of Some Local Rice Varieties Grown without Fertilizer on Acid Sulphate Soil Area in South Kalimantan |
| publisher |
UNIVERSITY OF LAMPUNG |
| publishDate |
2009 |
| topic |
N content N mineralization N uptake plant top biomass |
| url |
http://journal.unila.ac.id/index.php/tropicalsoil/article/view/346 http://journal.unila.ac.id/index.php/tropicalsoil/article/view/346/426 |
| contents |
Banjarese farmers in South Kalimantan apply a very minimum nitrogen (N) fertilizer in growing local rice. This practice has been adopted for many years. Yet, the grain yield level at farmers’ field is not necessary low. We are questioning about N sources for the crop. This study only focuses on measuring net N mineralization in association with N uptake. We grew three rice varieties at four sites in rice growing area of South Kalimantan. The net N accumulation in soil and water, plant top biomass, N concentration of plant tissue and N uptake were measured on monthly basis. The results showed that all rice varieties grown in the 4 locations took up more N than from N mineralized from the organic matter. The higher N in the crop indicates that there are other sources of N for the local rice such as N fixed by microorganisms. |
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