Journal of Soil Quality and Management

SEBARAN NILAI KAPASITAS TUKAR KATION (KTK) DAN KEMASAMAN (pH) TANAH DI TANAH VERTISOL KECAMATAN SAKRA KABUPATEN LOMBOK TIMUR

Siti Sarah, Baharuddin AB, Bustan — Tue, 30 Apr 2024 00:00:00 +0000

Abstract : this study aims to determine the distribution of Cation Exchange Capacity (CEC) and Acidity (pH) values of soil. This research was conducted in December 2021 - January 2022. The location for taking soil samples was in Sakra District, East Lombok Regency, West Nusa Tenggara. Soil analysis was carried out in January 2021 at the Soil Chemistry Laboratory, Faculty of Agriculture, University of Mataram. The approach used in this study is the land unit (land unit). Soil samples in this study were taken by random sampling technique. The random sampling method is the process of taking samples using a random method. The sample points that will be used are 35 points representing vertisol soils in Sakra District. Soil sample data from the field is analyzed or tested in the laboratory. This laboratory test aims to determine the value of Cation Exchange Capacity (CEC) and Soil Acidity (pH). Utilization of Geographic Information Systems (GIS) in this research is by using the Arcgis application which is used to make maps. Maps are made by processing data that has been analyzed so that it can be entered and overlaid in the application. The results of the study showed that the CEC content analysis of this soil was classified as high, with medium to very high categories. Soil CEC at the study site ranged from 19.73 me/100gr to 69.62 me/100gr. Meanwhile, the results of the analysis of soil pH levels were classified as neutral, with a slightly acidic to slightly alkaline category. The pH level at the study site ranged from 6 to 8.4. Based on the results of research that has been done, this soil has a fairly good level of fertility, but it is necessary to add organic matter as a soil conditioner in order to maintain and increase soil fertility.

PENETAPAN EVAPOTRANSPIRASI POTENSIAL BERDASARKAN METODE HOLDRIDGE DAN BLANEY-CRIDDLE DI PULAU LOMBOK

K Shadiqul W , Bambang Hari Kusumo, Sukartono, Fahrudin — Sat, 30 Mar 2024 00:00:00 +0000

Pulau Lombok termasuk kategori pulau kecil dengan luas sekitar 4.738,7 km² (Iskandar, 2008), sehingga tingkat kerentanannya terhadap perubahan iklim lebih besar dibandingkan pulau-pulau besar. Salah satu metode dalam mencari ETo yang sering digunakan adalah metode Blaney Criddle dan Holdridge. Penelitian ini menggunakan metode deskriptif. Data penelitian ini merupakan data sekunder, didapatkan melalui WEB Global Solar Atlas yang di peroleh data Suhu, Ketinggian tempat dan Radiasi melalui titik koordinat daerah penelitian yang sudah di tentukan dengan aplikasi ArcGIS. Hasil analisis menunjukkan penetapan ETo menggunakan metode Holdridge lebih rendah sebesar 25% dibanding penetapan menggunakan metode Blaney-Criddle

PENGEMBANGAN BIBIT PORANG DARI BEBERAPA SUMBER DENGAN BERBAGAI MEDIA TUMBUH MELALUI TEKNIK POTTING MIX PADA TANAH ENTISOL

Risma Ardianti, Suwardji, Baharuddin AB — Mon, 18 Mar 2024 00:00:00 +0000

Porang plants (Amorphophallus muelleri Blume) are herbaceous plants that are commonly found growing wild in forested areas, under bamboo clumps, along riverbanks, on mountain slopes, amidst dense and humid vegetation. Porang propagation from corms and cormels requires a considerable amount of time, around 7-9 months. Therefore, there is a need for the development of porang seedlings through easy vegetative propagation methods that can be implemented at the farmer level. This research utilized Entisol soil originating from Andalan Village, Bayan Subdistrict, North Lombok Regency. The research was conducted using an experimental method. The treatments were arranged using a Completely Randomized Design (CRD) involving 4 seed sources (porang cormels/bulbils, split corms, porang leaves, and porang stems) with 3 treatments, namely no treatment, biochar, liquid organic fertilizer, PGPR, and Trubus plant growth regulator. The analysis of variance results showed that the application of various growing media (biochar, liquid organic fertilizer, and PGPR) influenced changes in soil properties and the growth of porang seedlings. The growth of porang seedlings was influenced in the split corm and cormel techniques. Further tests indicated that the cormel technique, specifically in terms of plant height and stem diameter, was affected by the addition of organic materials compared to the absence of organic material application

RESPON PERTUMBUHAN TANAMAN SORGUM (SORGHUM BICOLOR (L.) MOENCH) TERHADAP PENGGUNAAN COCOPEAT, PUPUK KANDANG SAPI DAN PUPUK SILIKAT DI LAHAN KERING LOMBOK UTARA

Muhammad Alkhairi, Suwardji, Lalu Arifin Aryabakti — Fri, 21 Jun 2024 00:00:00 +0000

Problems with Entisol soil fertility in the Dry Land of North Lombok Regency, which is dominated by sandy soil. This is a major factor in carrying out agricultural production activities on dry land in the North Lombok region. One of the efforts that must be made to increase soil fertility is by modifying the root area through the addition of soil amendments such as manure and cocopeat. The purpose of this study was to determine the growth response of sorghum plants to the application of cocopeat combined with cow manure in dry land. The method used in this research is an experimental method with field experiments. The experimental design in this study used a randomized block design (RBD) with 5 treatments, P0 (soil/control), P1 (100 kg/ha silicate fertilizer), P2 (10 tonnes/ha manure + 100 kg/ha silicate fertilizer), P3 (10 tons/ha cocopeat + 100 kg/ha silicate fertilizer), P4 (10 tons/ha manure + 10 tons/ha cocopeat + 200 kg/ha silicate fertilizer). Each treatment was repeated 4 times to obtain 20 experimental units. The effect of giving a combination of manure and cocopeat on sorghum plants showed significant results on plant height and plant stem diameter at each observation, namely at plant ages 25, 32, 39 and 46 HST.

KARAKTERISTIK TANAH PADA LAHAN AGROFORESTRI TANAMAN RAJUMAS (Duabanga moluccana), KLOKOS (Eugenia sp) DAN JUKUT (Eugenia polyantha) DI KAWASAN RARUNG LOMBOK TENGAH

Sri Eviani, Suwardji, Joko Priyono — Fri, 21 Jun 2024 00:00:00 +0000

During the 28 years of implementing agroforestry in Rarung Forest, Lombok Tengah, a research study was conducted to examine the soil characterization in the agroforestry plots of Rajumas (Duabanga moluccana), Klokos (Eugenia sp), and Jukut (Eugenia polyantha). The research method used was a descriptive method with survey techniques. Three agroforestry systems were studied: Rajumas agroforestry, Klokos agroforestry, and Jukut agroforestry. Soil samples were taken from each soil profile layer beneath the respective land uses.The research was conducted in July-August 2022, at the Rarung Forest area in Central Lombok, and the soil analysis was performed at the Soil Physics and Conservation Laboratory and the Soil Chemistry and Biology Laboratory, Faculty of Agriculture, Mataram University. Three parameters were tested: soil physical properties (soil bulk density, soil particle density, porosity, and soil texture), soil chemical properties (soil pH, organic carbon, total nitrogen, and cation exchange capacity), and soil biological properties (CO2 evolution).The results of the study showed that the soil properties varied among all land use systems. Over the 28-year period, the Rajumas agroforestry system had the best soil quality in terms of physical and chemical properties, while the Klokos agroforestry system exhibited rapid soil CO2 evolution in terms of biological properties

PENGARUH APLIKASI PUPUK KOMPOS DAN BIOCHAR TERHADAP POPULASI BAKTERI DI RIZOSFER DAN PERTUMBUHAN TANAMAN PADI GOGO (Oryza Sativa L.)

Mifatun Rahmawati, Lolita Endang S, Zaenal Arifin — Fri, 21 Jun 2024 00:00:00 +0000

This reasearch to describe the effect of the application of compost and biochar on bacterial population in rhizosphere and growth of upland rice (Oryza sativa L.) This research was conducted in November-January 2021. The method used in this study was experimental by conducting experiments in greenhouse of the Faculty of Agriculture, University of Mataram. Meanwhile, the analysis of chemical and biological properties was carried out at the Chemistry and Soil Fertility Laboratory, Faculty of Agriculture, University of Mataram. The results showed that the soil used before planting was relatively less fertile (chemically). The soil used in this study had a pH value of 5.0 and available-P had 0.95 ppm, total N was 0.19%, K-exchanged was 0.22 meq/100g. In addition, the organic matter content as reflected by the C-organic value is only 1.2% which is in the low category. And the value of cation exchange capacity is in the medium category (17.43 meq/100 g of soil). administration of doses of urea and phonska fertilizer combined with the provision of compost and biochar had an effect on the variables of plant height, number of tillers and leaf width where the P1 treatment gave a significant value compared to the P0 and P2 treatments. In the parameters of root weight and stem weight, treatment P1 was more significant than treatment P0 and P2. In the total variable of microorganisms the number of bacterial colonies was significant in the P1 treatment with an average value of 7.14, in the P1 phosphate solubilizing fungus parameter it had a significant value with an average value of 3.17, in the P1 phosphate solubilizing bacteria parameter it had a significant value with an average value of 3.61 while for the respiration parameter of microorganisms p1 has a significant value with an average value of 4.36 mg C-CO2 / g soil.

EFEK ASUPAN BAHAN ORGANIK TERHADAP PERTUMBUHAN DAN HASIL UBI JALAR (Ipomoea batatas) BUDIDAYA VERTIKAL KULTUR

sulis putri, R Sri Tejowulan, Zaenal Arifin — Fri, 21 Jun 2024 00:00:00 +0000

Abstrak: Penyediaan pangan di Indonesia saat ini mempunyai berbagai tantangan, seperti (1) alih fungsi lahan pertanian menjadi lahan non-pertanian, (2) jumlah lahan garapan yang terus menyusut, (3) meningkatnya degradasi dan pencemaran lahan, (4) krisis pangan. meningkatnya jumlah penduduk. meningkat, (5) tingginya ketergantungan terhadap pangan pokok beras, (6) kegagalan program pembukaan lahan sawah baru, dan (7) kegagalan program diversifikasi pangan di Indonesia (Setyoko 2013). Data observasi dianalisis menggunakan analisis Sidik Ragam (ANOVA) dengan menggunakan Program Miniteb. Apabila hasil ANOVA berbeda nyata maka dilanjutkan dengan uji beda nyata jujur (BNJ) pada taraf 5%. Untuk mengetahui keeratan hubungan dan keeratan hubungan antara kesuburan tanah dengan hasil panen, dilakukan analisis regresi dan korelasi. Berdasarkan penelitian yang telah dilakukan dapat diartikan bahwa: Penambahan berbagai jenis bahan organik pada media tanam buatan meningkatkan kesuburan tanah N-tersedia, penambahan berbagai jenis bahan organik mempengaruhi tinggi tanaman, jumlah daun, jumlah ikan tongkol, bobot badan basah, bobot badan kering dan ubi bobo tumbi, penambahan kompos (P5) memberikan pertumbuhan panjang tanaman (197,4 cm dan 196,0 cm), jumlah daun (82,7 helai dan 78,0 helai), jumlah ikan tuna (24,5 helai daun dan 23,5 helai), bobot kelapa basah (1845,25 g dan 1788,05 g) dan bobot kelapa kering (156,81 g dan 177,23 g) serta rendemen ubi jalar (554,13 g dan 529,17 g) merupakan yang terbaik. Terdapat hubungan regresi dan korelasi antara N tersedia media tanam dengan bobot umbi ubi jalar dengan koefisien determinasi R2 = 0,49 dan korelasi r = 0,70 termasuk dalam kategori korelasi sangat kuat.

Kata Kunci: Bahan organic, Pertumbuhan, Kentang Mansi, Budidaya, Budidaya vertikal

Abstract: Food supply in Indonesia today has various challenges, such as (1) conversion of agricultural land into non-agricultural land, (2) the amount of arable land that continues to shrink, (3) increasing land degradation and pollution, (4) an increasing population. increased, (5) high dependence on the staple food rice, (6) the failure of the program to create new rice fields, and (7) the failure of the food diversification program in Indonesia (Setyoko 2013). Observational data were analyzed using Sidik Ragam analysis (ANOVA) using the Miniteb Program. If the ANOVA results are significantly different, then proceed with the honest significant difference test (BNJ) at the 5% level. To determine the closeness of the relationship and the closeness of the relationship between soil fertility and crop yields, regression and correlation analysis was carried out. Based on the research that has been done, it can be interpreted that: The addition of various types of organic matter into artificial planting media increases soil fertility N-available, the addition of various kinds of organic matter affects plant height, number of leaves, number of tuna, wet body weight, dry body weight and bobo tumbi sweet potato, the addition of compost (P5) gave growth in plant length (197.4 cm and 196.0 cm), number of leaves (82.7 leaves and 78.0 leaves), number of tuna (24.5 leaves and 23.5 strands), wet coconut weight (1845.25 g and 1788.05 g) and dry coconut weight (156.81 g and 177.23 g) and sweet potato yield (554.13 g and 529.17 g) the best. There is a regression relationship and correlation between N-available planting medium and the weight of sweet potato tubers with a coefficient of determination of R2 = 0.49 and a correlation of r = 0.70 which is included in the very strong correlation category.

Keywords: Organic Matter, Growth, Sweet Potato, Cultivation, Vertical Culture

ANALISIS TIPE IKLIM BERDASARKAN CURAH HUJAN PADA BEBERAPA KECAMATAN DI KABUPATEN LOMBOK BARAT

Lindri Anas Tasiyah, Raden Sutriono, I Putu Silawibawa — Fri, 21 Jun 2024 00:00:00 +0000

Permasalahan perubahan iklim dipulau Lombok khususnya di Kabupaten Lombok Barat, hal ini menjadi faktor utama dalam melaksanakan kegiatan produksi pertanian di wilayah Kabupaten Lombok Barat. Salah satu upaya yang harus dilakukan dengan analisis tipe iklim dengan menggunakan metode Oldeman agar dapat mengetahui kebutuhan air tanaman serta curah hujan pada wilayah tersebut. Tujuan dari penelitian ini yaitu, untuk mengetahui mengetahui tipe iklim di beberapa Kecamatan di Lombok Barat berdasarkan klasifikasi iklim menurut Oldeman. Metode yang digunakan dalam peneltian ini adalah metode deskriptif, yang dimulai dengan pengumpulan data dari badan meteorologi, klimatologi dan geofisika., menganalisis data dan menginterpetasi data. Analisis tipe menurut Oldeman pada dasarnya menentukan jumlah bulan basah, bulan kering dan bulan lembab yang dimana jumlah bulan basah > 200 mm, bulan kering < 100 mm dan bulan lembab 100-200 mm. Hasil yang diperoleh dari penentuan tipe iklim pada beberapa Kecamatan yaitu pada Kecamatan Kediri bertipe iklim C3, pada Kecamatan Narmada D3, pada Kecamatan Lembar D3 dan pada Kecamatan Gerung bertipe iklim E3.

STATUS RESIDU BAHAN AKTIF IMIDAKLOPRID DAN PENDIMETALIN DI LAHAN SAWAH PETANI TEMBAKAU VIRGINIA DI PULAU LOMBOK

Lu'luil Mir'ah, Padusung Padusung, I Putu Silawibawa — Fri, 21 Jun 2024 00:00:00 +0000

Abstrak: Tanaman tembakau Virginia (Nicotiana tabacum L) merupakan salah satu komoditas tanaman pertanian yang banyak dibudidayakan di Pulau Lombok. Pestisida dengan bahan aktif Imidakloprid dan Pendimetalin merupakan salah satu jenis pestisida yang banyak digunakan oleh petani tembakau di Pulau Lombok. Penggunaan pestisida yang berlebihan dan tidak tepat dapat mengakibatkan pencemaran lingkungan, salah satunya dapat meninggalkan residu di dalam tanah, tanaman, dan air. Tujuan dari penelitian ini adalah untuk mengetahui status residu insektisida berbahan aktif Imidakloprid dan herbisida berbahan aktif Pendimetalin di lahan sawah petani tembakau Virginia di Pulau Lombok. Hasil analisis laboratorium menunjukkan bahwa residu insektisida berbahan aktif Imidakloprid dan herbisida berbahan aktif Pendimetalin di lahan sawah petani tembakau Virginia di Pulau Lombok tidak terdeteksi adanya residu pada alat kromatografi dengan batas minimum deteksi 0,10 ppm.

Kata Kunci: Imidakloprid, Pendimetalin dan Residu

Abstract: Virginia tobacco plant (Nicotiana tabacum L) is one of the most widely cultivated agricultural commodities on Lombok Island. Pesticides with the active ingredients Imidacloprid and Pendimetalin are a type of pesticide that is widely used by tobacco farmers on Lombok Island. Excessive and inappropriate use of pesticides can lead to environmental pollution, one of which can leave residues in soil, plants and water. The purpose of this study was to determine the residual status of the insecticide with the active ingredient Imidacloprid and the herbicide with the active ingredient Pendimetalin in the paddy fields of Virginia tobacco farmers on Lombok Island. The results of laboratory analysis showed that residues of the insecticide with the active ingredient Imidacloprid and the herbicide with the active ingredient Pendimetalin in the paddy fields of Virginia tobacco farmers on Lombok Island were not detected by the chromatography tool with a minimum detection limit of 0.10 ppm.

Keyword: Imidacloprid, Pendimethalin and Residue

Efek Kandungan Bahan Organik terhadap Pertumbuhan dan Hasil Tanaman Cabai pada Kondisi Stres Air

Salma Ranesa, R Sri Tejowulan, Padusung — Fri, 21 Jun 2024 00:00:00 +0000

Abstrak: Pertanian lahan kering sering menghadapi kendala terutama masalah kurangnya ketersediaan air. Hal tersebut dapat menyebabkan terganggunya pertumbuhan, menurunnya produksi, kegagalan panen, hingga kematian bagi tanaman. Salah satu strategi dalam meningkatkan ketersediaan air di dalam tanah yaitu dengan cara menambahkan bahan organik ke dalam tanah. Keberadaan bahan organik di dalam tanah dapat memperbaiki kemampuan tanah dalam menyimpan air, sehingga dapat mendukung produktivitas tanaman. Tujuan penelitian ini yaitu untuk mengetahui pengaruh penambahan dosis bahan organik terhadap pertumbuhan dan hasil tanaman cabai pada kondisi stres air, mengetahui dosis kandungan bahan organik yang memberikan pertumbuhan dan hasil terbaik, dan mengetahui hubungan regresi korelasi antara C-organik, N-tersedia, dan P-tersedia tanah dengan hasil tanaman cabai. Metode penelitian yang digunakan yaitu metode eksperimental, dengan rancangan percobaan Rancangan Acak Lengkap (RAL) 8 perlakuan sebagai berikut: P0= 6 kg tanah, P1= 6 kg tanah + 1% pupuk kandang sapi (60 gr), P2= 6 kg tanah + 2% pupuk kandang sapi (120 gr), P3= 6 kg tanah + 3% pupuk kandang sapi (180 gr), P4= 6 kg tanah + 4% pupuk kandang sapi (240 gr), P5= 6 kg tanah + 5% pupuk kandang sapi (300 gr), P6= 6 kg tanah + 6% pupuk kandang sapi (360 gr), P7= 6 kg tanah + 7% pupuk kandang sapi (420 gr). Masing-masing perlakuan diulang sebanyak 3 kali sehingga diperoleh 24 unit percobaan. Hasil penelitian ini menunjukkan bahwa penambahan pupuk kandang memberikan pengaruh terhadap pertumbuhan dan hasil tanaman cabai pada kondisi stres air. Penambahan pupuk kandang sapi sebanyak 4% menghasilkan kondisi ketersediaan air dan unsur hara yang optimal, memicu pertumbuhan dan hasil tanaman cabai terbaik. Hasil regresi korelasi antara C-organik, N-tersedia, dan P-tersedia dengan hasil tanaman cabai memberikan pengaruh sebesar 21%-89% dan keeratan hubungan 0,46-0,95.