Plot Scale Nitrogen Balance of Newly Developed Lowland Rice at Kleseleon Village Malaka District, Nusa Tenggara Timur

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dc.contributor en-US
dc.creator Sukristiyonubowo, nFN; Indonesian Soil Research Institute, ICALRD, IAARD, Ministry of Agriculture
dc.creator Widodo, Sugeng; Jogyakarta Assessment Institute for Agricultural Technology, IAARD, Ministry of Agriculture
dc.creator Nugroho, Kusumo; ICALRD, IAARD, Ministry of Agriculture
dc.date 2017-12-28
dc.identifier http://ejurnal.litbang.pertanian.go.id/index.php/jti/article/view/5982
dc.identifier 10.2017/jti.v41i2.5982
dc.description  Abstract. Study on plot scale nitrogen balance of newly developed lowland rice was conducted in Kleseleon village, Malaka District, Nusa Tenggara Timur in 2014. The soil was classified as ustifluvent with ustic moisture regime. Five treatments were tested including T0: farmers practices, T1: NPKat recommendation rate + Rice straw compost, T2: NPKat recommendation rate + Smart + Rice straw compost, T3: ¾ NPKat recommendation rate + Smart + Rice straw compost and T4: NPKat recommendation rate + Smart + Rice straw compost, in which N, P  and K were split two times. Nitrogen balance was computed according to the differences between nitrogen gains and losses. To quantify total nitrogen input, nitrogen content in urea, dosage of urea, rate of compost, nitrogen concentration in compost, irrigation water supply, and nitrogen concentrations in rain water were collected. Output parameters included rice grains yield, rice straw production, nitrogen concentrations in rice grains and rice straw. The results indicated that surplus nitrogen balances were taken place in all treatments including the farmer practices. Concerning the environmental, agronomical and economic point of views, the recommendation of urea fertilizer rate at least was about 100 kg ha-1 season-1 like done in the farmer practices plus the compost rate about 3000 kg ha-1 season-1. Urea should be available in the district level every planting season was the urea application rate multiplied by total low land area in Malaka district equal to 1.207 tons district -1 season -1.Abstrak. Percobaan neraca hara nitrogen pada skala petak pada sawah bukaan baru dilaksanakan di Dusun Kleseleon, Kabupaten Malaka, Propinsi Nusa Tenggara Timur pada Tahun Anggaran 2014. Tanah yang digunakan termasuk golongan ustifluvent denga kelembaban tanah ustik. Lima teknologi yang menjanjikan diuji pada percobaan ini meliputi T0: Praktek Petani sebagai kontrol, T1: NPKpada dosis  rekomendasi + Kompos jerami, T2: NPKpada dosis  rekomendasi + Smart + Kompos jerami , T3: ¾ NPKpada dosis  rekomendasi rate + Smart + Kompost jerami dan T4: NPKpada dosis rekomendasi + Smart + Kompos jerami, dimana  N, P  dan K diberikan dua kali. Keseimbangan N dihitung berdasarkan berdasarkan selisih antara nitrogen yang masuk ke lahan sawah dengan nitrogen yang hilangdari lahan sawah . Untuk menghitung nitrogen yang masuk ke lahan sawah diperlukan kandungan N pada urea, dosis pupuk urea, kadar nitrogen dalam kompos,  takaran kompos, air irigasi dan kandungan nitrogen pada air irigasi dan air hujan. Sedangkan nitrogen yang hilang dari lahan sawah meliputi hasil gabah dan produksi jerami serta kadar nitrogen pada gabah dan jerami. Hasil penelitian menjukkan bahwa positif nitrogen balance pada semua perlakuan. Mengingat bahaya pencemaran lingkungan, keuntungan agronomik dan ekonomis yang didapat, pemberian Urea sebaiknya dikurangi dari  250 kg ha-1musim-1 menjadi 100 kg Urea kg ha-1musim-1 seperti pada praktek petani dengan memberi kompos jerami sebanyak 3000 kg ha-1musim-1. Dengan demikian urea yanbg harus tersedia di Kabupaten Malaka setiap musim tanam sebanyak dosis urea rekomendasi dikalikan dengan luas sawah di kabupaten Malaka sama dengan  1.207 ton kabupaten -1 musim-1. en-US
dc.format application/pdf
dc.format application/pdf
dc.language eng
dc.publisher Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian en-US
dc.relation http://ejurnal.litbang.pertanian.go.id/index.php/jti/article/view/5982/pdf5
dc.relation http://ejurnal.litbang.pertanian.go.id/index.php/jti/article/view/5982/pdf-Sukris
dc.rights Copyright (c) 2017 Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) en-US
dc.source Jurnal Tanah dan Iklim; Vol 41, No 2 (2017): JTI Vol.41(2) Des 2017; 115-122 en-US
dc.source Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal); Vol 41, No 2 (2017): JTI Vol.41(2) Des 2017; 115-122 id-ID
dc.source 1410-7244
dc.subject Agriculture; Soil Science en-US
dc.subject Nitrogen balance; plot scale; nitrogen input; nitrogen losses; newly developed lowland rice field; surplus; ustifluvent; Neraca Nitrogen; skala petak; nitrogen yang masuk ke lahan sawah; nitrogen yang hilang bersama panen; sawah bukaan baru; surplus; usti en-US
dc.subject Soil Nutrient en-US
dc.title Plot Scale Nitrogen Balance of Newly Developed Lowland Rice at Kleseleon Village Malaka District, Nusa Tenggara Timur en-US
dc.type info:eu-repo/semantics/article
dc.type info:eu-repo/semantics/publishedVersion
dc.type en-US
dc.type experimental en-US
dc.coverage East Nusa Tenggara, Indonesia en-US
dc.coverage 2016 en-US
dc.coverage Agriculture; Soil sample en-US


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