Sudjono Utomo
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PEMETAAN KUALITAS TANAH PADA BEBERAPA PENGGUNAAN LAHAN DI KECAMATAN JATIPURO KABUPATEN KARANGANYAR Primadani, Prasti; Utomo, Sudjono; Supriyadi, Supriyadi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 7, No 2 (2010)
Publisher : Faculty of Agriculture, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v7i2.40

Abstract

This research was conducted on January-August 2008. Used Randomized Completely Block Design (RCBD) that arranged in factorial with two factors. The first factor was 3 levels of inorganic fertilizer dosage i.e.: without inorganic fertilizer (A1), urea dosage 150 kg.ha-1, SP-36 dosage 75 kg.ha-1, KCl dosage 50 kg.ha-1, and ZA dosage 50 kg.ha-1 (A2), urea dosage 300 kg.ha-1, SP-36 dosage 150 kg.ha-1, KCl dosage 100 kg.ha-1, and ZA dosage 100 kg.ha-1 (A3). And second factor were 3 levels of quail manure dosage i.e.: without quail manure (O1), quail manure dosage 3 Mg.ha-1 (O2); quail manure dosage 6 Mg.ha-1 (O3). Statistical analysis that used was F test or Kruskal-Wallis test, Duncan Multiple Range (DMR) test at 5% in level, and Correlation test. The research result showed that the highest P uptake efficiency, agronomy efficiency, and the grain dry weight was achieved on 50% of inorganic fertilizer recommendation dosage (urea dosage 150 kg.ha-1, SP-36 dosage 75 kg.ha-1, KCl dosage 50 kg.ha-1, and ZA dosage 50 kg.ha-1) and 6 Mg.ha-1of quail manure treatment (A2O3) in mount of 38.83%, 30.40%, and 6.22 Mg.ha-1 respectively. P uptake efficiency in that treatment was increased as much 13.83% than the same treatment in session I. Generally, the grain dry weight on season II lower than season I. The significant decrease in mount of 2,33 Mg/ha-1 found on treatment of inorganic fertilizer present in 50% of recommendation dosage (urea dosage 150 kg.ha-1, SP-36 dosage 75 kg.ha-1, KCl dosage 50 kg. ha-1, and ZA dosage 50 kg.ha-1) and 3 Mg.ha-1 of quail manure treatment (A2O2). Keywords: quail manure, inorganic fertilizer, uptake efficiency, the dry grain weight paddy
MODEL PENGELOLAAN N, P DAN K PADA TANAH SAWAH DI KECAMATAN JATISRONO, WONOGIRI Amini, Aisyiyah; Utomo, Sudjono; Mujiyo, Mujiyo
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 7, No 2 (2010)
Publisher : Faculty of Agriculture, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v7i2.37

Abstract

Available of N, P and K nutrient at paddy soil of Sub district Jatisrono, Regency Wonogiri very low cause farmer fertilizer application, land morphology, and climate. The purpose of this research is to prove that relationship model endogen and exogenous variable can be used as reference in N, P and K management for paddy soil. This research was conducted in Sub district Jatisrono, Regency Wonogiri at February until June 2008. This research is descriptive explorative and functional relationship research. The variables approach by field survey and supported laboratory analysis of the soil chemical and physical properties, use statistical analysis stepwise regression, simple Correlation test and regression analysis. The result of this research show that model which have been tested can be use as reference in N, P and K management for paddy soil in Sub district Jatisrono, Regency Wonogiri, while its model is total soil N is = 0.939 + 0.424 KPK + 0.006 Fertilizer Type, Soil Available P = 45.9 – 3.9 pH + 2.38 fertilizer Dose, Soil Available K = - 0.016 + 0.0482 pH – 0.0010 organic substance. Keywords: N, P, and K Management Model, Paddy Soils
PENDUGAAN PERKEMBANGAN ALFISOLS DI KECAMATAN JATIPURO, KARANGANYAR DENGAN MODEL KESTABILAN GENETIK Kurniawan, Raditia Eka; Utomo, Sudjono; Mujiyo, Mujiyo
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 8, No 1 (2011)
Publisher : Faculty of Agriculture, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v8i1.35

Abstract

This research had been conducted at Jatipuro, Sub district of Karanganyar from July until September, 2007. The aim of this research are to know and comparing the development of Alfisols with genetic stability model. This research was descriptive‐explorative research, and the variables approached by field’s survey and supported by laboratory analysis. The site sampling on the fields determined with soil mapping unit. Samples for physical, chemicals and sand mineralogy properties was take from representative pedon or profile from each soil mapping unit. This research uses statistical analysis stepwise regression to know which the most variable can explain the soil development, and the Eberhart‐Russell’s genetic stability model to determine the degree of soil stability for any soil mapping unit. The result of this research can be concluded that the 3rd soil mapping unit (NGEPUNGSARI series, Ultic Hapludalfs, very fine, kaolinitic, active, non acid, isohyperthermic family) was the most’s stable in soil development, and followed by 1st soil mapping unit (JATISOBO series, Vertic Hapludalfs, very fine, kaolinitic, active, non acid, isohyperthermic family). Even though, the 2nd soil mapping unit (JATISUKO series, Typic Hapludalfs, very fine, kaolinitic, active, non acid, isohyperthermic family) was the most’s unstable in soil development. Each soil mapping unit also showed the difference of soil development, that looking from the endogen and exogen’s factors can be explained. Keywords: Alfisolfs, development, differentiated, Genetic Stability Model
KAJIAN VOLUME DAN FREKUENSI PEMBERIAN AIR TERHADAP IKLIM MIKRO PADA TANAMAN JAGUNG BAYI (Zea mays L.) DI TANAH ENTISOL Noorhadi, Noorhadi; Utomo, Sudjono
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 2, No 1 (2002)
Publisher : Fakultas Pertanian Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

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PENYUSUNAN MODEL PENGELOLAAN KUALITAS TANAH SAWAH DI KECAMATAN JATIPURO KABUPATEN KARANGANYAR Nugroho, Wahyu Adi; Utomo, Sudjono; Dewi, Widyatmani Sih
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 8, No 1 (2011)
Publisher : Faculty of Agriculture, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v8i1.33

Abstract

The intensive paddy soil management were known caused the soil degradation, thus the proper paddy soil quality management was needed to maintain the sustainability of soil function. The aim of the research was built a model that can be used as the reference of paddy soil quality management in district of Jatipuro, Karanganyar regency. The research was executed on October 2008 until February 2009. The research was descriptive explorative, carried out by collecting secondary data for model building and getting sample based on random sampling method at paddy soil in each Soil Map Unit (SMU), laboratory analysis for each selected soil quality indicator, and field observation for model validation. The results showed that the builded model: SQi = 0,414 + 0,363 pH, can be used as the reference of paddy soil quality management in district of Jatipuro. Based on the model then the recommendation of paddy soil quality management could be determined, through increasing pH by submerged the soil and delay the rice planting about 2 weeks after flooding. Keywords: model, paddy soil quality, district of Jatipuro
Kajian Volume Pemberian Air dan Dosis Pengapuran Terhadap Ketersediaan P pada Tanaman Jagung Bayi (Zea mays L) di Tanah Alfisol Supriyadi, Supriyadi; Utomo, Sudjono
Caraka Tani: Journal of Sustainable Agriculture Vol 18, No 1 (2003): March
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v18i1.20362

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh volume air dan dosis pengapuran terhadap ketersediaan P di tanah Alfisols dengan indikator dan jagung bayi (Zea mays L), dan interaksi antara kedua faktor perlakuan tersebut, dilakukan di rumah kaca Fakultas Pertanian UNS.Rancangan yang digunakan adalah RAL Faktoral 3 x 4 yang terdiri atas 2 faktor dengan 3 kali ulangan, sehingga diperolah 12 kombinasi perlakuan. Faktor I adalah volume pemberian air (V) terdiri dari 3 taraf, yaitu volume pemberian air hingga kadar air 28%, 35%, dan 42%. Faktor II adalah dosis pengapuran (K) terdiri dari 4 taraf yaitu 0, 1, 2, 3 ton/ha. Analisis statistik digunakan Uji F dan Uji kontras orthogonal polinomial.Kesimpulan dari penelitian ini bahwa peningkatan volume pemberian air dan dosis pengapuran berpengaruh meningkatkan ketersediaan P di tanah Alfisols, interaksi antara keduanya adalah prinsip.