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Diaz Gustomo
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Agriculture, Biological Sciences & Forestry Environmental Science

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UJI EFEKTIVITAS KOMBINASI JENIS PUPUK ORGANIK DAN BIOURIN KELINCI TERHADAP KEMANTAPAN AGREGAT DAN PERTUMBUHAN TEBU PADA FASE PERTUNASAN Dewi Nur Istiqomah; Diaz Gustomo; Sugeng Prijono
Jurnal Tanah dan Sumberdaya Lahan Vol. 2 No. 1 (2015)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

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Abstract

The success of sugar cane production is affected by the condition of the plant in the early phase (germination). The improvement of sugarcane growth can be done by improving soil physical properties using organic matter such as mature compost, blotong, and biourine of rabbit. The objective of this study was to explore the effects mature, blotong, and biourine of rabbit on soil aggregate stability and the early growth of the sugar cane (germination phase). The experiment was held in P3GI (Pusat Penelitian Perkebunan Gula Indonesia) in Pasuruan, Jawa Timur. The experiment used randomized block design with 8 treatments and 5 replications. The treatments were P0 control (without organic matter), P1 (blotong t ha-1), P2 (mature compost 20 t ha-1), P3 (biourine of rabbit 10 L ha-1), P4 (mature compost 20 t ha-1 + blotong t ha-1), P5 (biourine of rabbit 10 L ha-1 +blotong t ha-1), P6 (biourine of rabbit 10 L ha-1 +  mature compost 20 t ha-1), P7 (biourine of rabbit 10 L ha-1 +  mature compost 20 t ha-1 +blotong t ha-1). The results showed that the application of combination of mature compost, blotong, and biourine of rabbit affected soil aggregate stability. The highest value in 12 MST was in biourine 10 L ha-1 + mature compost 20 t ha-1 (P6) was 3.41 mm. Application of mature compost 20 t ha-1 + blotong t ha-1 (P4) gave highest plant height of  84.62 cm
PENGARUH APLIKASI BAKTERI ENDOFIT PENAMBAT NITROGEN DAN PUPUK NITROGEN TERHADAP SERAPAN NITROGEN SERTA PERTUMBUHAN TANAMAN TEBU Lusi Nurhayati Tamba; Diaz Gustomo; Yulia Nuraini
Jurnal Tanah dan Sumberdaya Lahan Vol. 3 No. 2 (2016)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

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Abstract

Nitrogen is a macro nutrient needed to support growth and productivity of sugarcane. Nitrogen requirement for sugarcane can be met through organic, inorganic, and biological fertilizers. The objectives of this study was to analyze the effect of N fertilizer treatments with the use of nitrogen-fixing endophytic bacteria Gluconacetobacter diazotrophicus on levels of nutrient nitrogen and the growth of sugarcane. Treatments tested in this study were P0 = control (no added fertilizer and bacteria), P1 = (800 kg N ha-1 + 5 mL bacteria inoculation), P2 = (600 kg N ha-1 + 5 bacteria inoculation), P3 = (400 kg N ha-1 + 5 mL bacteria inoculation), dan P4 = (200 kg N ha-1 + 5 mL bacteria inoculation). The results showed that treatment of N fertilizer doses did not significantly different for  populations of endophytic bacteria Gluconacetobacter diazotrophicus and the vegetative growth of sugarcane. Doses of N fertilizer treatment with utilization of endophytic bacteria Gluconacetobacter diazotrophicus only significantly different on  N-total and N uptake of sugarcane. Treatment in P2 (600 kg N ha-1 + Gluconacetobacter diazotrophicus 5 mL) has a larger population of Gluconacetobacter diazotrophicus endophytic bacteria than other treatments, is 53.0 x 102 cfu mL-1, and has higher levels of N-total than other treatment is 0.16%. For vegetative growth of sugarcane in P1 (800 kg N ha-1 + Gluconacetobacter diazotrophicus 5 mL) had a good influence for the high, number of leaves, dry weight and N uptake of sugarcane. While the  number of tillers in P4 (200 kg N ha-1 + Gluconacetobacter diazotrophicus 5 mL) has a seedling growth more than other treatments
Co-Authors Dewi Nur Istiqomah Lusi Nurhayati Tamba Sugeng Prijono Yulia Nuraini