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Application of Filter Cake on Growth of Upland Sugarcanes Purwono, ,; Sopandie, Didy; Harjadi, Sri Setyati; Mulyanto, Budi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 2 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Recently planting site of sugarcane was shifted from lowland to upland area. Sugar cane cultivation in upland has many constraints, especially limited water supply and low nutrition availability. The objectives of this research were to study the influence of  application of composted filter cake on growth and water use efficiency of upland sugar cane. The research was conducted in Jengkol, Kediri. Treatments consist of three factors: frequency of irrigation (once every 1 week, once every 2 weeks, and once every 3 weeks); sugarcane varieties (PS-862 and  PS-864); and  compost doses (0, 2.5, 5, and 7.5 ton ha-1). Split plot design with three replications was used in each  irrigation treatment, using composted filter cake as main plots and sugarcane varieties as sub plots. The results showed that the highest sugar content was  reached at application of 5 ton ha-1   compost  and the  greatest crystal sugar was reached at 3.09 ton ha-1 compost. Compost application at 5 ton ha-1 on each planted row can reduce  frequency of irrigation from once a week to once every 2 weeks.   Keywords: compost of filter cake, frequency of irrigation, upland sugar cane
PENGARUH KONSENTRASI DAN SAAT PEMBERIAN SITOZIM TERHADAP PERTUMBUHAN DAN HASIL KAPAS (Gossypium hirsutum L.) Purwono, ,; Herlianthy, Sri Lilis
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 22, No 1 (1994): Buletin Agronomi
Publisher : Bogor Agricultural University

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Abstract

Experiment to investigate the effect of concentration and time of application of Sitozim was conducted at greenhouse in Sindangbarang Experimental Station, Bogor Agricultural University, Bogor, from February to July 1993. Four levels concentration (0, 1.25, 2.5, and 3.75 mi/l) and three application time (vegetative, generative, and vegetative+generative stage) were applied. The experimental design was Randomized Block Design with three replications. Vegetative growth was not affected by the treatments. Higher concentration gave higher weight of boll per plant, seed-cotton weight per plant, and fibre weight per plant. However, there were no significant effects of all treatments on fibre quality.            
UJl HASIL KEPRASAN BEBERAPA VARlETAS TEBU LAHAN KERING PADA DAERAH BERIKLIM BASAH Purwono, ,; Sudiatso, Sugeng; Guntoro, Dwi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 25, No 1 (1997): Buletin Agronomi
Publisher : Bogor Agricultural University

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Abstract

The study of first rationed sugar cane on wet climate region was carried out at Sindangbarang Bogor (belong to type A according Schmidt and Fergusson classification) from October 1993 to April 1994. The study was designed to fined out the yield and total-sugar content. Several cultivar of Ps 87 (produced by P3GI) were tested (Ps 87-985, Ps 87-21718, Ps 87-22189, Ps 87-22704, Ps 87-21781, Ps 87-22098, Ps 87-21781, Ps 87-21067), and Ps 58 as a control. The result showed that the Ps 87-22074 produced the highest yield (19.524,7 g/m "juring") and total-sugar content (13,16%) among the other.
Pengaruh Pemberian Kompos Bagase terhadap Serapan Hara dan Pertumbuhan Tanaman Tebu (Saccharum officinarum L.) Guntoro, Dwi; Purwono, ,; Sarwono, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 31, No 3 (2003): Buletin Agronomi
Publisher : Bogor Agricultural University

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Abstract

The effect of bagase compost application on nutrient uptake and growth of sugarcane was studied at PG Jatitujuh. Majalengka, West Java, from October 1998 to March 1999. The experiment was arranged in split plot design with three replications. The bagase compost as sub plot and the recommended rate of inorganic fertilizer as the main plot. The rates of bagase compost were 0.0, 2.5, 5.0, and 7.5 ton/ha and the recommended rate of inorganic fertilizers were 100%, 75%, and 50% of recommended rate. The recommended rate of inorganic fertilizer was 300 kg Urea, 200 kg ZA, 150 kg SP-36, and 200 kg KCl/ha. The results showed that bagase compost application at 7.5 ton/ha significantly increased nitrogen uptake at 3 Month After Planting (MAP) compared to no compost, but did not affect P2O5, K2O and  S. Lower rate of inorganic fertilizer decreased S uptake at 2 MAA, but did not affect N, P2O5 dan K2O. Combination of 5.0 ton/ha compost bagase with 100% recommended rate of inorganic fertilizer tended to increase sugarcane growth. Bagase compost application with inorganic fertilizer did not affect the percentage of growth, height, and diameter off  stalk.   Key words: Sugarcane, Bagase compost, Nutrient uptake