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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Journal of Degraded and Mining Lands Management Habitat AGRIVITA, Journal of Agricultural Science agriTECH Journal of Applied Agricultural Science and Technology
Didik Suprayogo
Department Of Soil Science, Agriculture Faculty, Brawijaya University, Malang, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Other

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Kajian Faktor Penentu Sosio-Kultural dan Kinerja Sistem Irigasi (Studi Kasus Audit Irigasi Daerah Irigasi (DI) Molek Kepanjen Kab.Malang) Asri, Azan; Kusuma, Zaenal; Suprayogo, Didik
Habitat Vol 25, No 1 (2014)
Publisher : Department of Social Economy, Faculty of Agriculture , University of Brawijaya

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Abstract

Permasalahan perubahan iklim global merupakan isu kebijakan strategis yang menimbulkan dampak negatif pada lingkungan seperti terjadinya kelangkaan air irigasi yang implikasinya berupa terjadinya penurunan produktivitas pasokan pangan dan penurunan tingkat efisiensi air irigasi.  Hal ini menjadi lebih komplek karena terjadi perubahan  pola  dinamika  sosio-kultural  yang secara langsung maupun tidak langsung menentukan karakteristik  dan  arah  layanan  irigasi yang  diharapkan. Penilaian (audit) kinerja fisik dan distribusi belum dirasa cukup untuk menilai kinerja irigasi secara keseluruhan sehingga perlu diketahui  hubungan dinamika sosio-kultural dengan kinerja irigasi.  Tujuan penelitian  : (1) Mengidentifikasi faktor yang menentukan efektifitas dan efisiensi sistem irigasi; (2) Mengevaluasi kinerja irigasi metode LPR/FPR dan metode  FAO/Sosio-kultural  sesuai SNI bidang pengairan. Pendekatan riset non eksperimen dan ekplanatif dengan metode survey,  analisis dilakukan pada aspek fisik dan distribusi serta sosio-kultural irigasi seperti kondisi fisik, keseragaman air, kecukupan air, dan efisensi air irigasi serta persepsi HIPPA/GHIPPA terhadap faktor kinerja  melalui skala likert. Lokasi dilaksanakan pada DI Molek-Kepanjen Malang dengan luasan 3.971 ha. Standar analisis data, standar kepmenPU. Sedangkan persepsi terhadap faktor kinerja irigasi menggunakan skala linkert, Hasil dari penelitian terdapat hubungan antara faktor-faktor penentu efektivitas dan efisiensi serta sosio-kultural irigasi dengan Kinerja Irigasi. Faktor penentu internal (sosio-kultural)  yang paling signifikan menentukan kinerja pengelolaan irigasi adalah indikator Partisipasi menyangkut peningkatan peran dan partisipasi GHIPPA/HIPPA terhadap pengelolaan irigasi. Pendekatan analisis kebutuhan air irigasi metode  RAP-FAO memiliki nilai indek kinerja irigasi yang lebih efektif dan efisien dibanding pendekatan LPR/FPR (eksisting). Kata kunci:  Audit sosio-kultural  irigasi,   HIPPA/GHIPPA, skala likert.
PLANT SPECIES DIVERSITY IN RELATION TO CARBON STOCKS AT JANGKOK WATERSHED, LOMBOK ISLAND Markum, Markum; Soesilaningsih, Endang Arie; Suprayogo, Didik; Hairiah, Kurniatun
AGRIVITA, Journal of Agricultural Science Vol 35, No 3 (2013)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v35i3.315

Abstract

ABSTRACTThe area around Jangkok watershed has changed, dividing it into some land use systems. This research aimed to study the effect of plant species diversity onC-stocks, and to analyse the characteristics of land use systems based on their similarity. The observations were carried out on 18 plots representing six land use systems in Jangkok watershed (Lombok Island) i.e. primary forest (PF), disturbed forest (DF), Mahogany- woodlot (MW), candlenut- agroforestry (CA), multistrata- agroforestry (MA), and simple- agroforestry (SA).The species diversity level was measured using Shannon-Weiner diversity index, whileC-stocks according to the method of RaCSA (Rapid Carbon Stock Appraisal). Results showed that forest conversion to agricultural land usesreduced the number and density of the species, average wooddensity andtree basal area. The PF represented the highest biodiversity index (3.46), while the other land uses were categorised in medium and low. Largest C-stock wasfound inPF and in(30 years old) of MWaveraged of 500 Mg ha-1, while the lowest was in SAof 68 Mg ha-1, while in other land uses was 219 Mg ha-1.The quantity of C-stock was not related tospecies diversity and its density, but closely related (pof tree (R2=0.84), basal area of all sizes tree (R2=0.86), and with the basal area of big trees (diameter > 30 cm) (R2=0.71). Based on the number and species density, agroforestry system (MA and CA) resembled the characteristics of natural forest (DF and PF)./spanEN-GBspan style=
Agroforestry Interactions in Rainfed Agriculture: Can Hedgerow Intercropping Systems Sustain Crop Yield on an Ultisol in Lampung (Indonesia)? Suprayogo, Didik; Hairiah, Kurniatun; Van Noordwijk, Meine; Cadisch, Georg
AGRIVITA, Journal of Agricultural Science Vol 32, No 3 (2010)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v32i3.21

Abstract

The productivity of rainfed agriculture land developed on Ultisols is limited by physical and chemical constraints. These problems can be solved and consistently high yields obtained only by the development of comprehensive manage-ment systems. In the 1980s, hedgerow inter-cropping was promoted initially for improving soil fertility and sustainability of crop production on nutrient-depleted soils. However the previous enthusiasm for hedgerow intercropping is unsupported by scientific evidence and its labour demand too high. The question remains, is there a window of opportunity where the biophysical principle of hedgerow intercropping is sound? Research to compare the long-term performance of crops and trees in hedgerow intercropping and monocluture cropping is needed. This research has been conducted at long-term field experiment station at the BMSF-Project, Lampung, Indone-sia. The experiment site had non-nitrogen-fixing peltophorum (PP), nitrogen-fixing gliricidia (GG) and alternate peltophorum and gliricidia (PG) hedgerow intercropping and maize / groundnut monoculture (C) treatments. We concluded that the net interactions related to soil fertility and competition for growth resources in peltophroum were positive for crop yield in PP and PG but negative for GG. Even so, the PP and PG sys-tems resulted in similar yields as monocropping; however, hedgerow intercropping considerably improved soil fertility attributes. Keywords: Agroforestry, crop yield, ultisols, tropics, sustainable
THE POTENTIAL OF RUBBER AGROFORESTRY FOR RATTAN (Calamus sp) CULTIVATION IN KATINGAN REGENCY: DIVERSITY OF CLIMBING TREES FOR RATTAN Rotinsulu, Johanna Maria; Suprayogo, Didik; Guritno, Bambang; Hairiah, Kurniatun
AGRIVITA, Journal of Agricultural Science Vol 35, No 3 (2013)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v35i3.356

Abstract

This research aims to evaluate the diversity of climbing trees for rattan in agroforestry system. The result of this research is expected to be applied as the standard to improve the management in rattan agroforestry. The research was conducted from June to December 2011 in three different villages: Kalemei, Hiran and Liting in Katingan regency, Central Kalimantan. The data were collected via purposive sampling in two different types of land cover i.e rubber agroforestry (RA) and secondary forest (SF), each of system  had 6 plots and 18 sub-plots of experiment. The evaluation of species diversity was performed by measuring species richness, Importance Value Index, and Diversity Index. Statistic model was constructed by employing the approach in multivariate analysis and cluster analysis. The results indicated that SF had higher species diversity (3.02 – 3.45). The diversity level of RA was higher in Hiran village (3.96), than in the other two villages (<3.0).  Habitat similarity was characterised by the similar composition and structure of vegetation of both SF and RA in Hiran and Kalemei, but not in Liting. The potential of supporting trees for rattan in RA is rather high as shown by high species density and the presence of trees with high wood density (0.75-0.9g cm-3) to extremely high (>0.9g cm-3) as it found in SF.Keywords: Rattan, rubber agroforestry, climbing trees for rattan, secondary forest
Study of Arthropod Communities in A Virginia Tobacco Agro-Ecosystem Thei, Ruth Stella; Abadi, Abdul Latief; Mudjiono, Gatot; Suprayogo, Didik
Journal of Tropical Life Science Vol 3, No 2 (2013)
Publisher : Journal of Tropical Life Science

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Abstract

The cultivation of tobacco is one of users of agro-chemical substances such as insecticides, herbi-cides, defoliants, and fertilizers among other food crops and plants with high economical value. The use of these chemicals may bring negative effects regarding the richness and abundance of arthropods. The study of arthropod community in the Virginia tobacco ecosystem was carried out in Central Lombok, West Nusa Tenggara Province, during the 2010 plantation year. It was aimed at finding the composition, structure, and dynamic of the arthropod diversity around the tobacco field. Samples were obtained by using trapping techniques (pitfall traps, yellow-pan traps, and sweep net). The number of arthropods found in Virginia tobacco field are 69, consisting of 65 species of insects (belonging to 46 families and 8 orders) and 4 species of spiders (belonging to 4 families). The majority of insects found was Hymenoptera, dominated by bees. Based on the ecological functions, the major group of arthro-pods documented was phytophagous (20 species), mostly Coleoptera and Orthoptera. Yet, the number of predators was relatively more abundant than that of the phytophagous. The number of kinds of ar-thropods commonly interacting around the field fluctuated during the growing period, while in the cultivation period the number decreased. The diversity of the species (H) and the ratio of abundance of the natural enemies and phytophagous in the field was high.
Conservation farming in rain-fed agriculture: can biogeotextile, cover crop residues, and soil tillage application improve the growth and the yield of maize (Zea mays L.)? Dhina Mustikaningrum; Didik Suprayogo; Sri Rahayu Utami
Journal of Degraded and Mining Lands Management Vol 6, No 1 (2018)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (376.887 KB) | DOI: 10.15243/jdmlm.2018.061.1409

Abstract

Market demand for maize (Zea mays L.) in Indonesia is increasing from time to time along with the increasing demand for food and livestock for fodder. However, current farming practices in the upland area where maize usually cultivated, threaten the sustainability of maize production. Conservation farming could be an alternative to reduce land and soil degradation caused by current farming practices. A factorial randomized block designed field experiment was conducted to determine the combined effect of biogeotextile with cover crop residues and soil tillage on growth and yield of maize. The treatments included utilization of Mendong plant’s mat (Fimbrystilis globulosa) as biogeotextile material and four cover crop species: Sunn hemp (Crotalaria juncea), Cowpea (Vigna unguiculata), Pigeon pea (Cajanus cajan), and Mucuna (Mucuna spp). The results showed that the biogeotextile mat and cover crop residues, but not soil tillage, increased maize height and the number of leaves, and yield of maize. Biogeotextile mulch increased maize yield up to 43% compared to control. The highest yield (8.0 t/ha) was shown by the combination of biogeotextile application with cowpea residues. Conservation farming is prospective for improving plant production and protecting land from degradation.
Impact of maize conservation agricultural system on nitrogen losses through surface runoff and soil erosion in dryland Fitri Wijayanti; Syahrul Kurniawan; Didik Suprayogo
Journal of Degraded and Mining Lands Management Vol 7, No 1 (2019)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2019.071.1965

Abstract

Nutrient loss in dry land through surface runoff and soil erosion is thought to dominate the watershed eutrophication. Conservation agriculture is expected to be able to reduce the nitrogen (N) loss into river systems. This study aimed to compare the N total input between conservation and conventional farming systems and to analyze N losses through surface runoff and soil erosion in conservation agriculture compared to conventional farming systems. The study was conducted at Agro-Techno-Park at Jatikerto, Brawijaya University from December 2017 to September 2018. The experiment was designed with three factors, i.e. (1) with and without biogeotextile, (2) No and conventional tillage, (3) application of four kinds of cover crop residues, with three replications. Results of the study showed that conservation agriculture was able to provide higher N inputs into the soil than conventional agriculture. The N loss through surface runoff was relatively low, ranging from 0.03 kg/ha to 0.45 kg/ha. N loss through erosion with conventional tillage and without biogeotextile reached 15 kg/ha to 32 kg/ha. No-tillage practices combined with the biogeotextile application significantly reduce N losses through soil erosion to only 0.3 kg/ha to 5 kg/ha. Conservation agriculture is one of the solutions to overcome the trade-off between the need for increased food production and environmental protection.
Analisis Kerentanan Sistem Irigasi dengan Indeks Kelentingan di Daerah Irigasi Wilayah Daerah Aliran Sungai Brantas Wahyuni Setyo Lestari; Didik Suprayogo; Sugeng Prijono
agriTECH Vol 38, No 4 (2018)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (276.219 KB) | DOI: 10.22146/agritech.11202

Abstract

The aim of study was to explore the vulnerability of an irrigation system due to climate change by using a resilience index in irrigation areas (D.I.) of Brantas watershed (Molek, Jatikulon, Menturus, and Konto). There were eighty-two water-user farmers’ associations (HIPPA), sixty eight of them were selected as survey targets. The Duckstein and Plate formula was applied to calculate the resilience index of an irrigation area, while the multinomial regression was used to identify the dominant factors of resilience index. This study proved that Molek, Jatikulon, Menturus and Konto irrigation areas (D.I.) were impacted by climate change with different scales of resilience. The resilience index was 100% for Molek Irrigation area, 80% for Jatikulon irrigation area, 50% for Menturus irrigation area, and 33% for Konto irrigation area. Climate change was predicted to cause a decrease of harvested area, in such a way that in the condition of El Niño around 48% in Konto Irrigation Area, 34% in the Menturus Irrigation Area, 28% at the Jatikulon Irrigation Area, and 15% in the Molek Irrigation areas. Nevertheless, in the La-Nina condition, there was no increase of harvested area in the entire irrigation area studied, even, there was a 28% decrease of harvested area in Konto irrigation area, and 6% in Menturus irrigation area. The most powerful threat toward an irrigation system’s sustainability was the environment, followed by physical, social, and economic aspects respectively. The results of this study implicate to the improvement of irrigation management policy, namely to the operational pattern of irrigation system, which uses a resilience index (Ik) as basic measure of irrigation system management out of the K-factor.
Turning Volcanic Ash into Fertile Soil: Farmers’ Options in Coffee Agroforestry After the 2014 Mount Kelud Eruption Rizki Maulana Ishaq; Danny Dwi Saputra; Rika Ratna Sari; Didik Suprayogo; Widianto Widianto; Cahyo Prayogo; Kurniatun Hairiah
AGRIVITA, Journal of Agricultural Science Vol 42, No 1 (2020)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v42i1.2494

Abstract

Post eruption land reclamation consists of hoeing, mixing volcanic ash with soil, adding external organic and/or in-organic fertilizers and making infiltration-pits (‘rorak’). This study, after the 2014 eruption of Kelud volcano, aimed to evaluate: (a) soil physico-chemical fertility post eruption, (b) impact of organic inputs interacting with ash in infiltration pits on soil C and N underneath (1st experiment), (c) biomass loss (decomposition) of local biomass (Trema orientalis and Parasponia andersonii) in a coffee agroforestry system (2nd experiment). Measurements in the ash-affected (+Ash) Tulungrejo-village (Ngantang-Malang district) were contrasted with an area without recent ash deposits (-Ash) in Krisik (Gandusari-Wlingi district). The 1st experiment (-Ash site) treatments did not lead to statistically significant influences on soil conditions just below the infiltration pits during 12 weeks of monitoring. The 2nd experiment quantified rate of biomass loss from litterbags. In +Ash location, litter half-life time (t50) was 19.5 weeks for coffee or Parasponia as single biomass source to 24 weeks for Coffee+Sengon+Durian. In -Ash location decomposition was slower, with t50 of 24 weeks for Parasponia to 27 weeks for Coffee+Sengon+Durian biomass. Concentrations of soil NH4 and NO3 below the litterbags peaked between 4 to 8 weeks, with nitrification lagging behind on ammonium release.
The Effect of Coffee Canopy Pruning and Fertilization on Coffee Growth and Soil Physical Properties Rosesita Tri Suci Rohani; Cahyo Prayogo; Didik Suprayogo; Kurniawan Sigit Wicaksono
Journal of Applied Agricultural Science and Technology Vol. 8 No. 1 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i1.208

Abstract

Arabica coffee is primarily cultivated in agroforestry systems in Indonesia, but limited local knowledge and technology adoption hinder its productivity due to insufficient practices in coffee pruning management. This study aims to analyze variations in coffee canopy pruning (Pruning+Bending) management and the impact on plant growth and soil physical characteristics.. The experiment employed a split-plot experimental design and utilized the Fisher test (5%) to assess the treatment effects. The primary plot focused on coffee canopy pruning using two management options: (1) Pruning (PR) and (2) Bending (BN). The subplots included various types and doses of fertilizer treatments: (1) Control (F0), (2) Chicken manure (F1), (3) Chicken manure+NPK fertilizer (F2), and (4) NPK fertilizer (F3). Each experimental plot covered an area of 20x20 m and contained 50 coffee plants. Bending techniques represent alternative pruning methods, and, in general, they have a significant impact on improving several coffee parameters compared to total pruning. Regarding the soil’s physical properties, the bending technique exhibited a higher infiltration rate than pruning. The management approach of Bending+Chicken manure: NPK fertilizer (BNF2) enhanced various coffee parameters, resulting in an increased stem diameter of 4.79 cm, new shoot length of 471.20 cm, and chlorophyll content of 6.83 mg/g. Furthermore, this treatment increased soil organic carbon content by 7.51% and reduced bulk density to 0.58 g/cm. In conclusion, the bending technique wasproven to be more advantageous than pruning, especially when combined with chicken manure and NPK fertilizer for enhancing coffee management among farmers.
Co-Authors Abdul Latief Abadi Azan Asri Bambang Guritno Cahyo Prayogo Cahyo Prayogo Danny Dwi Saputra Dhina Mustikaningrum Endang Arie Soesilaningsih Fitri Wijayanti Gatot Mudjiono Georg Cadisch Johanna Maria Rotinsulu Kurniatun Hairiah Kurniawan Sigit Wicaksono Markum Meine Van Noordwijk Rika Ratna Sari Rizki Maulana Ishaq Rosesita Tri Suci Rohani Ruth Stella Petrunella Thei Sri Rahayu Utami Sugeng Prijono Syahrul Kurniawan Wahyuni Setyo Lestari Widianto Widianto Zaenal Kusuma