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PENGARUH MACAM DAN DOSIS AMELIORAN TERHADAP TITIK MUATAN NOL DAN RETENSI FOSFAT Sri Hartati; Slamet Minardi; Woro Wulandari
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 3, No 2 (2003)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v3i2.111

TITTLE : THE EFFECT OF AMELIORAN KINDS AND DOSAGES TO OXISOL’S ZERO CHARGE POINT AND PHOSPHATE RETENTION. Abstract : N/A

KAJIAN EFEKTIFITAS PENGHAMBATAN NITRIFIKASI PADA RHIZOSPHERE BERBAGAI SPESIES TANAMAN Brachiaria DI ALFISOLS Anastasia Intan Sawitri; Purwanto Purwanto; Slamet Minardi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 10, No 2 (2013)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v10i2.197

Title : Study on Effectiveness of Nitrification Inhibition in Rhizosphere of Brachiaria species on Ultisol. It has been known for some plant species Brachiaria (Brachiaraia decumbens, Brachiaria humidicola , and Brachiaria brizantha ) that have been studied has been hoen to effectively inhibit nitrification from that rhizosphere activity. Therefore it is necessary to further resarch the cultivation of other plant Brachiaria species such as Brachiaria mutica , Brachiaria decumbens and Brachiaria humidicola, to determine the effectiveness as a barrier to the rate of nitification that carried out by the method of pot experiments with functional relationship variables approach based on sampling and nondestructif Completely Randomized Design ( CRD ) consisting of plant species Brachiaria factor . and various doses of N fertilizer is 100 kg / ha , 150 kg / ha , 200 kg / ha . Results of this study indicate that 1 ) Brachiaria mutica , Brachiaria decumbens and Brachiaria humidicola , very significant on nitrification potential , but the treatment of a wide range of doses of fertilizer N is not a real effect on nitrification potential . 2 ) Highest nitrification potential value in the treatment Brachiaria mutica in the amount of 5,114 mg NO2- / g soil /5hour , while the lowest value of the potential nitrification in plants Brachiaria humidicola is equal to 0,414 mg NO2- / g soil /5hour . 3 ) Of the three treatment plants Brachiaria sp . in that the treatment plant can Brachiaria humidicola considered the most effective in inhibiting nitrification.

EFISIENSI SERAPAN P DAN HASIL TANAMAN PADI (Oryza sativa L.) PADA BERBAGAI IMBANGAN PUPUK KANDANG PUYUH DAN PUPUK ANORGANIK DI LAHAN SAWAH PALUR SUKOHARJO (MUSIM TANAM II) Jauhari Syamsiyah; Slamet Minardi; Bayu Winoto
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 7, No 2 (2010)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v7i2.38

Title : Efficiency of P Up Take and The Yield of Rice Plant (Oryza sativa L.) with Quail Manure and Inorganic Fertilizer at Paddy Soil, Palur, Sukoharjo (Season II). 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

KAJIAN KOMPOSISI PUPUK NPK TERHADAP HASIL BEBERAPA VARIETAS TANAMAN BUNCIS TEGAK (Phaseolus vulgaris L.) DI TANAH ALFISOL Slamet Minardi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 2, No 1 (2002)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v2i1.103

An experiment concerning the study o/NPK fertilizer composition to the yield of varieties ofbeans (Phaseolus vulgaris L.) had been carried out in Sukosari, Jumantono, Karanganayr. The kind of soil is Alfisol. The experiment was arranged with split plot design basically with randomized Completely Block Design (RCBD), consist of two factors and three replications. Varieties (V) as main plot, consist of 3 levels : Strike, Tendergreen, and Richgreen, NPK composition treatment (P) as subplot, consist of 4 levels: (0:0:0), (15:10:15), (15:15:15), and (10:15:10). The result of the experiment showed that NPK fertilizer composition increases the height of plant; the number of pods per plant, the weight of pods per plant, the dry weight of straw and length of pods. There wasn't an interaction effect of between NPK fertilizer composition and variety of all parameters.

EFEK PERIMBANGAN PUPUK ORGANIK DAN PUPUK ANORGANIK TERHADAP SIFAT KIMIA TANAH ANDISOL TAWANGMANGU DAN HASIL TANAMAN WORTEL (Daucus carota L.) Slamet Minardi; Joko Winarno; Abror Hanif Nur Abdillah
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 6, No 2 (2009)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v6i2.59

Title : Effects of Balance Organic and Inorganic Fertilizer on the Andisols Soil Chemistry at Tawangmangu to Yield of Carrot (Daucus carota L.). This research was carried out from August 2008 to February 2009. The purpose of this research were to know the effect of litter quality of Gliricidia maculata and Salacca edulis to inhibition of nitrification and efficiency N benefit in Alfisols. This research were conducted in Blumbang, Sub district Tawangmangu, Karanganyar Regency. The aim of this research to know the effect of balance organic fertilizer and inorganic fertilizer to Andisols soil chemistry at Tawangmangu. This research was experimental research which is used RCBD (Randomized Complete Block Design) with single factor: trial pattern P1 (0% organic fertilizer + 0% inorganic fertilizer), P2 (50% inorganic fertilizer), P3 (100% inorganic fertilizer), P4 (50% organic fertilizer), P5 (50% organic fertilizer + 50% inorganic fertilizer), P6 (50% organic fertilizer + 100% inorganic fertilizer), P7 (100% organic fertilizer), P8 (100% organic fertilizer + 50% inorganic fertilizer), P9 (100% organic fertilizer + 100% inorganic fertilizer). Statistical analysis to test about treatment influence used F-test and Kruskal-wallis test, for comparing inter-treatment used Duncan Multiple Range Test (DMRT) and Mood Median, for finding out of the relation inter-variable it is used correlation test. The result of the research shows that the balance of organic fertilizer and inorganic fertilizer give significant effect to increase total N soil, available N soil, Cation Exchange Capacity (CEC), and pH H2O, but it has not significant effect to total P soil, available P soil, total K soil, available K soil, pH NaF, Base Saturation (BS), and Organic Matter. The Highest total N soil was 0,56% with increased percentage 38.8% from control and CEC was 28.08 me%, increased 4.87 me% from control in balanced 100% organic fertilizer and 100% inorganic fertilizer, affected to yield of carrot was 138.5 g increased 27.3 g (24.5%) from control. Keywords: Organic fertilizer, Inorganic Fertilizer, Andisols, Soil Chemistry, Carrot

PENGARUH PEMBERIAN JERAMI PADI TERHADAP PELEPASAN FOSFAT TERJERAP PADA ANDISOL (Typic Hapludant) TAWANGMANGU DENGAN INDIKATOR TANAMAN JAGUNG (Zea mays L.) Slamet Minardi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 1, No 2 (2002)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v1i2.95

N/A

The Use of Banana Corm Extract and Phosphate Rock to Increase Available-P in Alfisol Slamet Minardi; Sri Hartati; Hery Widijanto; Defi Wulandari
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 12, No 2 (2015)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v12i2.240

The aim of this research is to study the approprite formula and applied method of banana corm and phosphate rock on available-P in Alfisols. The research was arranged in factorial completely randomized design with 3 factors. The first factor is the dosage of banana corm extract, which is consisted of: E1 = 100 ml of banana corm extract, E2 = 200 ml of banana corm extract, and E3 = 300 ml of banana corm extract. The second factor is the dosage of the phosphate rock which is consisted of B1 = 100 gr of phosphate rock, B2 = 200 gr phosphate rock, and B3 = 300 gr of phosphate rock. The third factor is application method, which is consisted of M1 = directly applied into the soil. M2 = incubated before applied into the soil. The observation of soil includes: soil pH, soil organic matter content, cation exchange capacity, total-N, total-P, available-P and the population of phosphate solubilizing bacteria. Result shows that available-P in the Alfisols is very low. The interaction amongs the treatment significantly affect the population of phosphate solubilizing bacteria. Banana corm extract and phosphate rock applied directly into the soil increase soil pH.

Pengeloloan Kesuburan Pada Tanah yang Dipersawahkan dengan Sistem Pertanian Organik Slamet Minardi; Hery Widijanto
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 4, No 1 (2004)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v4i1.121

N/A

PENGARUH BAHAN ORGANIK DAN PUPUK FOSFOR TERHADAP KETERSEDIAAN DAN SERAPAN FOSFOR PADA ANDISOLS DENGAN INDIKATOR TANAMAN JAGUNG MANIS (Zea mays saccharata strurt) Slamet Minardi; Jauhari Syamsiyah; Sukoco Sukoco
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 8, No 1 (2011)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v8i1.25

Title : The Effect of Organic Matter and Phosphor Fertilizer to Availability and Absorption of Phosphor with Sweet Corn Plant (Zea mays saccharata strurt) Indicator. This research purposes was to find out the effect of the kinds of organic sources and P fertilizer to the availability and absorption of phosphor in Andisols and to find out kinds of organic sources and P fertilizer dosage that can give the highest of availability and absorption of phosphor in Andisols. This research was conducted in Green House and Chemistry and Soil fertility Laboratory of Agriculture Faculty of Sebelas Maret University from June 2005 until January 2006. This research used Factorial Randomized Complete Design with two factors. The first factor was P0 (without P fertilizer), P1 (100 kg/ha P2O5) and P2 (100 kg/ha P2O5), the second factor consist of B0 (without organic matter), B1 (Gliricida sepium 10 ton/ha), B2 (rice stalk 12 ton/ha) and B3 (manure 14.25 ton/ha). They are 12 treatments that be repeated three times. Data were analyzed with F-test or Kruskal-Wallis test 1% and 5% was used to know the effect of treatment on experimental result. Duncan multiple range test 5% is used for comparing inter-treatment. For finding out the relation between primary dependent variable and secondary dependent one it is used correlation test. The result of research shows that the organic matter and P fertilizer appliances have very significant effects to the availability of phosphor in Andisols and the absorption of P by the plant. The rice stalk appliance 12 ton/ha with P fertilizer 100 kg/ha P2O5 (P2B2) gives the highest availability of phosphor; that is 24.67 mg/kg. The highest absorption of P can be found at the manure appliance 14.25 ton/ha and P fertilizer 100 kg/ha P2O5 (P2B3); that is 2.24 mg. Keywords: Andisols, available-P, organic matter, P fertilizer

KAJIAN TERHADAP PENGATURAN PEMBERIAN AIR DAN DOSIS TSP DALAM MEMPENGARUHI KERAGAAN TANAMAN JAGUNG (Zea mays. L.) DI TANAH VERTISOL Slamet Minardi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 2, No 1 (2002)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v2i1.105

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