Zaenal Kusuma
UNIVERSITAS BRAWIJAYA JL.VETERAN KODE POS 65145 MALANG - JAWA TIMUR - INDONESIA

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PERSEPSI DAN PARTISIPASI PETANI DALAM PENERAPAN USAHATANI KONSERVASI (Studi Kasus Petani Sayuran Di Hulu DAS Jeneberang) Nuraeni, Nuraeni; Sugiyanto, Sugiyanto; Kusuma, Zaenal; Syafrial, Syafrial
Bumi Lestari Journal of Environment Vol 12, No 1
Publisher : Udayana University

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Abstract

Utilization of dry land resources most available in the upper watershed which hilly landform and heavy rainfall. This leads to erosion event and resulting decrease of land productivity. Thus, it needs application of conservation techniques to optimize the utilization of dry land in the upstream watershed. The aims of study are to identify the conservation application on the farm vegetables, to examine the perception of farmers towards conservation farming, and to assess the participation of farmers in conservation farming in the Upper Jeneberang watershed. Research sites in the upstream watershed Jeneberang, Gowa in South Sulawesi. The population is vegetable farming. The respondents did sampling randomly with number 182 farming. Data analysis methods used is descriptive analysis that is equipped with a qualitative analysis that are category and comparison analysis. The results showed the level of farmers perceptions about the benefits of conservation has been generally high, the benefits to the prevention of erosion (61.54%), soil fertility (58.89%), availability of water (64.84%) and prevention of floods and landslides (67.58 %). The high perception of farmers on the benefits of conservation is not followed by the participation of farmers in conservation farming. This is evident from the participation in counseling following the generally very low (56.59%), participation in the application of generally low conservation (27.47%), while participation in the maintenance has been generally high (31.32%).
PENGARUH PENANAMAN SENGON (Paraserianthes falcataria) TERHADAP KANDUNGAN C DAN N TANAH DI DESA SLAMPAREJO, JABUNG, MALANG Khalif, Ulyan; Utami, Sri Rahayu; Kusuma, Zaenal
Jurnal Tanah dan Sumberdaya Lahan Vol 1, No 1 (2014)
Publisher : University of Brawijaya

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Abstract

Landuse change are suspected to be one responsible to soil fertility decline on Slamparejo, Jabung, Malang. Efforts done by local farmers to deal with these problems are plantation of P. falcataria trough a reforestation program around 2003-2004. The benefits of the program are still need to be assessed so that this research was done (1) to compare the soil quality between P. falcataria-planted field and no P.falcataria field by the parameters of soil organic matter content and available N, (2) to study the relationship between organic matter input and soil organic matter content and available N, and (3) to identify factors affecting N availability post-P. falcataria plantation.This research used randomized block design with 5 treatments (annual crop field, 3 and 6 years P. falcaria plantation field, agroforestry field with P. falcataria + coffee + talas plantation, and ex-P. falcataria-planted field. Soil were sampled compositely by 3 replication from 0-20 cm depth. Litter were sampled from a 0.5m2 sub-plot of each treatment.Results showed that P. falcataria plantations enhance soil fertility indicated by increased soil organic matter input to 10.6 times (monoculture) and 17.6 times (agroforestry) control, increased soil organic matter content by 1.5 times (monoculture) and 2.3 times (agroforestry) control, increased total N of 1.6 times (monoculture) and 2.4 times (agroforestry) control, increased ammonium by 1.7 times (monoculture) and 3.2 times (agroforestry) control, and increased nitrate by 2.4 times (monoculture) and 3.9 times (agroforestry) control. The increased soil N content of P. falcataria-planted field were caused by higher soil organic inputs compared to those with no P. falcataria plantation. Nitrogen availability affected by soil texture but have no relationship with soil pH. However, agroforestry fields showed higher pH, organic C, total N, and available N than monoculture P. falcataria fields. Measured soil chemical properties showed no significant change by the increase of P. falcataria age, moreover, they declined down towards control on ex-P. falcataria plantation. This indicates that reforestation would only give a temporary soil quality enhancement.Key words: Regreening, Paraserianthes, Agroforestry, Soil organic matter, nitrogen total
PENGARUH SISTEM OLAH TANAH DAN APLIKASI MULSA TERHADAP SIFAT FISIK, PERAKARAN, DAN HASIL TANAMAN KACANG HIJAU (Vigna Radiata L.) Solyati, Aprilia; Kusuma, Zaenal
Jurnal Tanah dan Sumberdaya Lahan Vol 4, No 2 (2017)
Publisher : University of Brawijaya

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Abstract

Long term intensive tillage causes land degragation or damage soil physics and  affect on root growth and plant production. This research aimed to know the effect of tillage system and mulch aplication on soil physical properties, rooting, and green bean producton. The experiment was conducted in March - May 2016 in the village of Pendem, Junrejo District, Batu City. The study was conducted using a Randomized Block Design Factorial (RBDF) with two factor and each factor has 3 levels. The first factor is the tillage (T) and the second factor is the application of mulch (M), so that the total combination of the factors is 9 treatments. Each one is made of the plot and the treatment was repeated 3 times. The treatment are, no tillage (T0), minimum tillage(T1), intensive tillage (T2), without mulch (M0), silvery black plastic mulch (M1), and straw mulch (M2). The system of minimum tillage with straw mulch application is the best treatment of all combinations because it has the best value in bulk density, porosity total, roots, and the produce of green bean. The effect just occur on the short term, that is 14 days after planting, whereas after harvest (60 HST) there are not effected.
PELEPASAN KATION BASA PADA BAHAN PIROKLASTIK GUNUNG MERAPI Kusumarini, Novalia; Utami, Sri Rahayu; Kusuma, Zaenal
Jurnal Tanah dan Sumberdaya Lahan Vol 1, No 2 (2014)
Publisher : University of Brawijaya

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Abstract

Mount Merapi is most active volcano and periodically erupted. The erupted materials are soil parent materials which rich of base cations that useful for plant growth. Leaching process was used as alternative approach to study base cations released. Leaching experiment used artificial rain water. The effort to reduce base cations leached and also increase base cations relesed was using chicken manure, leucana litters, and Arachis pintoi that used as cover crop as the treatment of experiment. The leaching experiment simulated 4 years rainfall intensity. After incubation for 96 days (4 years rainfall simulation), addition of chicken maure and leucana litters decreased base cations leached in Mount Merapi pyroclastic materials, except for K+ by 16%. Planting Arachis pintoi decrease base cations leached in Mount Merapi pyroclastic materials by 13% but did not increase base cations released.Key words: pyroclastic, leaching, base cations
KAJIAN LENGAS TERSEDIA PADA TOPOSEKUEN LERENG UTARA G. KAWI KABUPATEN MALANG JAWA TIMUR Nita, Istika; Listyarini, Endang; Kusuma, Zaenal
Jurnal Tanah dan Sumberdaya Lahan Vol 1, No 2 (2014)
Publisher : University of Brawijaya

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Abstract

In one toposequence, soil moisture available at each location will be different. Soil moisture difference is due to many factors, either environmental factors as well as the ability of soil. Because soil moisture is the water available in the soil that can be used by plants, so the difference soil moisture conditions at each location will cause the carrying capacity of land to support a land use will be different. The research was conducted on the northern slopes toposequence of Mount Kawi, administratively located in the village Bendosari, Pujon, Malang, East Java. The purpose of this study to examine the effect of topography for soil moisture available on northern slopes toposequence of Mount Kawi. Site observations this study divided into five locations by ortophoto northern slopes toposequence of Mount Kawi 1984. The results showed that the bulk density, organic matter, micro pores and meso pores positive effect on soil moisture available, while silt and clay particles negatively effect. Great influence exerted on each factors is different, the highest influence is bulk density which amounted to 29,49% and the decline in organic matter 0,642%, micro pores 0,5509%, meso pores 0,3931 %, silt particles 0,2595% and clay particles 0,2753%. In one row of topography is associated elevation with slope apparently affects the soil moisture available at the study site. Factors elevation positive influence on soil moisture available at 0,00991%, while the negative influence slope of 0,35%.Keyword: soil moisture, toposequent, Mount Kawi
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.
PENGARUH KOMPOS TERHADAP SIFAT FISIK TANAH DAN PERTUMBUHAN TANAMAN JAGUNG DI INCEPTISOL Widodo, Koko Heru; Kusuma, Zaenal
Jurnal Tanah dan Sumberdaya Lahan Vol 5, No 2 (2018)
Publisher : University of Brawijaya

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Abstract

The purpose of this study was to elucidate the effect of composting on changes in soil physical properties and to examine the relationship of soil physics properties with plant growth. The method used is a completely randomized block design implemented on the moor land located in the Village Lojejer Wuluhan District, East Java Jember. The study was conducted on 750 m2 of land with an altitude of 14 above sea level. Type of soil that is found in the research field is an Inceptisol having organic material content of 1.1%. Parameters measured aggregate stability, soil pore, bulk density, organic hatter, plant height, leaf number, wet weight of plant, and dry weight of plant. The results showed that addition of several doses of compost improved physical properties of the soil studied. The addition of compost increased the amount of microbes in the soil that played as soil adhesive agents that make the stabile soil aggregate. The soil aggregates stability could increase pores and decrease the weight of the soil content. Composting did not affect the growth of plants because at the time of vegetative growth compost did significantly effect soil physical characteristics.
PENGARUH APLIKASI BIOCHAR KULIT KAKAO TERHADAP KEMANTAPAN AGREGAT DAN PRODUKSI TANAMAN JAGUNG PADA ULTISOL LAMPUNG TIMUR Shalsabila, Farahmitha; Prijono, Sugeng; Kusuma, Zaenal
Jurnal Tanah dan Sumberdaya Lahan Vol 4, No 1 (2017)
Publisher : University of Brawijaya

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Abstract

Ultisols are characterized by less aggregate stability, high clay, solid, organic material, and low pH. These can be managed by using calcification, augmentation of organic material and fertilization. One of soil amendments than can be used to improve properties of Ultisol is biochar.  The objective of this study was to elucidate the effects of cocoas shell biochar application on soil aggregate stability and growth and yield of maize at an Ultisol. Treatments tested in this study were D0 (no biochar application), D5 (application of 5 t biochar ha-1), D10 (application of 10 t biochar ha-1), D15 (application of 15 t biochar ha-1), D25 (application of 25 t t biochar ha-1), dan D40 (application of 40 t biochar ha-1). The results showed that in one growing season giving some doses cocoas shell biochar had not been able to affect soil aggregate stability. The highest aggregate stability was found at treatment of 15 t ha-1 of cocoa’s shell biochar with an index of 130.12. The increased levels of soil organic C was followed by the increase in aggregate stability index. The highest organic C was found at D40 treatment with 4,09%. While the highest retention of water was found at the D10 with 32,96%. The increased aggregate stability index was not followed by the ability of soil to retain water. The addition of cocoas shell biochar could increase soil organic C but not in line with the ability to retain water. If cocoas shell biochar was given at the hig dose then it can give high maize yield.
PENGARUH BIOCHAR, ABU KETEL DAN PUPUK KANDANG TERHADAP PENCUCIAN NITROGEN TANAH BERPASIR ASEMBAGUS, SITUBONDO Wibowo, Windu Ari; Hariyono, Budi; Kusuma, Zaenal
Jurnal Tanah dan Sumberdaya Lahan Vol 3, No 1 (2016)
Publisher : University of Brawijaya

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Abstract

Sandy soil has many macro pores that can cause water and soil nutrients difficult to remain at top soil because of leaching. This study was aimed to elucidate the effects of application of biochar, sugarcane boiler ash, and cattle manure on nitrogen leaching and availability in a sandy soil of Asembagus, Situbondo. Treatments tested were without soil amendment (control soil), 10 t biochar ha-1, 10 t sugarcane boiler ash ha-1, 10 t of cattle manure ha-1, combination of 5 t biochar ha-1 + 5 t cattle manure ha-1, and combination of 5 t sugarcane boiler ash ha-1 +  5 t cattle manure ha-1.  The six treatments were arranged in a completely randomized design with three replicates. Measurement of leachate was carried out every two week for ten weeks after incubation. The results showed that application of 10 t biochar ha-1 decreased leaching of total nitrogen with more stable than the other treatments. Leaching of total nitrogen in application 10 t biochar ha-1 always decreased at 2 week until 10 week after incubation with the value of 0.10 – 0.29 ppm. On the other treatments and control, the leaching of total nitrogen has a value 0.07-0.77ppm and 0.18 – 1.08 ppm, respectively. The percentage of leachate volume in application of 10 t biochar ha-1 was lower than the control soil and the other treatments with values ranging from 51.45 to 82.46%.
PENGARUH OLAH TANAH KONSERVASI TERHADAP RETENSI AIR DAN KETAHANAN PENETRASI TANAH PADA LAHAN KERING MASAM DI LAMPUNG TIMUR Ariska, Netty Dwi; Nurida, Neneng Laela; Kusuma, Zaenal
Jurnal Tanah dan Sumberdaya Lahan Vol 3, No 1 (2016)
Publisher : University of Brawijaya

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Abstract

Intensive soil tillage without returning crop residues resulted in deterioration of physical properties, particularly soil water retention and soul penetration resistance, of dry land acid soils. One of efforts to overcome the impact of intensive soil tillage is implementation of conservation tillage. This study was aimed to determine the effects of the application of conservation tillage on soil penetration resistance and water retention on acid dry land of East Lampung. The treatments tested were conventional soil tillage (OT1), conventional soil tillage with application of 6 t maize residue ha-1 (OT2), soil tillage in row with application of 6 t maize residue ha-1 (OT3), and no soil tillage with application of 6 t maize residue ha-1(OT4). Parameters measured were soil organic matter content, soil bulk density, total pore space, water retention, soil penetration, and biomass of soybean. The results showed that OT4 treatment (no tillage with application of 6 t maize residue ha-1) had the lowest penetration resistance of 1.75 Mpa and highest water retention capabilities 10.42% compared with conventional tillage