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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Journal of Tropical Soils Journal of Degraded and Mining Lands Management Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat BIOVALENTIA: Biological Research Journal
Indriyati, Lilik Tri
Department Of Soil Science And Land Resources, Bogor Agricultural University, Jl. Meranti, Kampus Dramaga, Bogor, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Medicine & Pharmacology

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Effectivity of Soil Amelioration on Peat Soil and Rice Productivity Septiyana, .; Sutandi, Atang; Indriyati, Lilik Tri
JOURNAL OF TROPICAL SOILS Vol 22, No 1: January 2017
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2017.v22i1.11-20

Abstract

Peat soil amelioration has important role on improvement of soil peat fertility such as  on increasing soil pH,  reducing organic acid and toxic ions, and also increasing nutrients availability.  Soil amelioration with polyvalent cations (Fe Al Cu Zn) namely slag, lateritic soils, and river mud are effectively reducing harmful effect of phenolic acid. The objectives of the study were to determine the effect of soil amelioration on peat soil chemical properties, optimum temperature amelioran tras and dolomite to increase Si concentration in peat soil, also to determine the effect of soil amelioration on increasing crop productivity (both biomass and yield).  The study was consisted of two sets of experiments, namely soil incubation in the laboratory and greenhouse experiment with 4 replications of CRD (complete randomized design) plot design.  The result of the study showed that  the application of slag and dolomite are significantly different to increase pH, base saturation, and (Ca, Mg) content, meanwhile slag application was more complex and stable on improving chemical properties of peat soil.  Slag was also improving pH, KB, and Ca, Fe content  as well as silica and ash.  Tras and dolomite burning were not significantly different on increasing silica in peat soil. Slag application was significantly increased both dried crop biomass and yield on rice.  The best ameliorant was slag compared to tras, dolomite, and mixed tras dolomit with slag.Keywords: Ameliorant, organic acids, paddy, peat soil
Efektivitas Pupuk Organik dan Anorganik pada Pertumbuhan dan Hasil Brokoli (Brassica oleracea var. italica) Lilik Tri Indriyati
Jurnal Ilmu Pertanian Indonesia Vol. 23 No. 3 (2018): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (354.36 KB) | DOI: 10.18343/jipi.23.3.196

Abstract

Broccoli (Brassica oleracea var. italica) is one of exotic vegetables having a high value, highly nutritious, rich source of vitamins, and also it contains the glucoraphanin compound which have anticancerous properties. Integrated nutrient management between organic and inorganic fertilizers is an important demand of the present era to increase broccoli yield and to cultivate a land in such a way that the soil productivity should remain sustainable. This research was conducted to study the effectiveness of organic and inorganic fertilizers on the growth and yield of broccoli. There were eight treatments which consisted of organic and inorganic fertilizers with different applications, single or in combination, and control (without fertilizer). Plant of broccoli as an indicator plant was measured for its height and number of leaves for variables of plant growth parameter, and head weight and head diameter for variables of yield. Application of organic and/or inorganic fertilizers significantly increased the growth of broccoli plant compared with control, but they did not show a significant difference with standard NPK treatment. Combination of organic fertilizer at a rate of 4 tons ha-1 and 50% the standard NPK fertilizer showed the highest diameter and yield of broccoli head. The sole application of organic fertilizer at a rate of 4 tons/ha showed the similargrowth and yield of broccoli with standard NPK treatment.
Uji Aktivitas Lakase dan Selulase pada Lignoselulosa Gambut dengan Berbagai Kadar Air Ronny Mulyawan; Lilik Tri Indriyati; Happy Widiastuti; Supiandi Sabiham
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 1 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (493.74 KB) | DOI: 10.18343/jipi.24.1.20

Abstract

The degradation of lignocellulose as the main constituents of peat is catalyzed by enzymes such as laccase or cellulase. The purpose of this research was to study the pattern of laccase and cellulase activities on sterile and non-sterile peat materials at three different water contents (125-175, 225-275, and 325-375%). The peat soil used was collected from oil palm rhizosphere in Riau Province. This research used the descriptive method by comparing the mean values between treatments. The results showed that enzymes activities on sterile and non-sterile peat added with laccase or cellulase were higher compared to those without enzyme addition. The highest laccase activity was at the first day of incubation, while that for selulase was at the 10th days of incubation. The activity of enzyme then decreased with the increase in the respected incubation time. The difference in decreasing of lignin and cellulose content at 125-175% water content was higher than at the other water contents. The decreases in lignin and cellulose contents were higher by addition of respected enzymes both in sterile and non-sterile peat. It could be concluded that at higher water content, laccase and cellulase activities were depressed both on sterile and non sterile peat, especially after the addition of enzyme.
Fraksionasi Fosfor pada Profil Tanah Hutan, Wanatani, dan Tegalan di Jawa Barat Parjono Parjono; Syaiful Anwar; Kukuh Murtilaksono; Lilik Tri Indriyati
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 4 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (394.688 KB) | DOI: 10.18343/jipi.24.4.319

Abstract

This study aims to evaluate the distribution of phosphorus (P) fractions within the soil horizons or profile of forest, agroforestry, and dryland in West Java and their correlations with soil chemical properties. Evaluation was based on the analytical results of soil samples taken from four soil horizons (Ao or Ap, A1 or A2, B1, and, B2) in each land use types. Fractionation of soil P was carried out using a sequential extraction method to get readily available-P (NaHCO3-P-inorganic (i)-P-organic (o)), rather available-P (NaOH-Pi-Po), slowly available-P (HCl-Pi), not available-P (residual-P), and total-P (HCl25%-P) fractions. The results showed that the average concentration of soil residual-P fraction in all land use types reached >99% of the total-P. The highest average concentration of residual-P fraction was measured in dryland, followed by forest and agroforestry. This indicated that soil P adsorption capacity was very high and resulted in a very low concentrations of the soil available-P fractions. The high concentrations of soil residual-P and total-P fractions were most probably related to P fertilizer application, particularly in dryland soil. Distributions of P fractions within the soil horizons at all land use types were significantly correlated with the concentration of soil organic matter content. It is therefore the concentration of soil NaOH-Po fraction was decreasing with the soil depths. The highest concentration was found at Ao or Ap horizon, although it was not the case for NaOH-Po fractions that was relatively constant.
PENGARUH BAHAN ORGANIK (Puerariajavanica) DAN FOSFAT ALAM TERHADAP PERTUMBUHAN DAN SERAPAN P TANAMAN JAGUNG (Zea mays) PADA ANDISOL PASIR SARONGGE Sri Djuniwati; Arief Hartono; Lilik Tri Indriyati
Jurnal Ilmu Tanah dan Lingkungan Vol 5 No 1 (2003): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (454.041 KB) | DOI: 10.29244/jitl.5.1.17-22

Abstract

Phosphor (P) is the second esensial element after nitrogen which is needed by plants, however, its avaiiability is a problem in vulcanic ash soils such as Andisol. The objective of the research was to study the effect of organic matter (Pueraria javanica) and rock phosphate to the growth and P-uptake of corn plant in Andisol Pasir Sarongge. The experiment was conducted in the greenhouse of Soil Department, Faculty of Agriculture, Bogor Agriculture University. The design of the experiment was completely randomized design with two factors and three replications. The first factor was the rates of organic matter (0, 2.5%, and 5%) and the second factor was the rates of rock phosphate (0, 40 mg Plkg, and 80 mg Plkg), therefore there were 27 of treatments of experiment. Three kilogram of soil samples were put in the plastic bag and mixed with combination of organic matter and rock phosphate based on the treatments and then incubatedfor 4 week periods. After incubation, five seeds of corn were planted, and then were selected and left three plants after one week period. The soil moisture was maintained to water holding capacity. The results of the study showed that after 4 weeks of planting (4WAP), addition of organic matter increased plant height, dry matter and P- uptake of corn plant. However, the effect between the rate of 2.5% and 5% of organic matter to those variables above were not significantly different. The increased of plant height (4WAP), dry matter, and P-uptake due to addition of organic matter were in the range of 32-41%, 68-105%, and 84-92%, respectively. Meanwhile. addition of rock phosphate. and combination of organic matter and rock phosphate did not affect those variables. Keywords: Andisol, organic matter, Puerariajavanifa, P-uptake, rock phosphate
RASIO DAN KEJENUHAN HARA K, Ca, Mg DI DALAM TANAH UNTUK TANAMAN KELAPA SAWIT (Elaeis guineensis Jacq) Eko Noviandi Ginting; Atang Sutandi; Budi Nugroho; Lilik Tri Indriyati
Jurnal Ilmu Tanah dan Lingkungan Vol 15 No 2 (2013): Jurnal Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (608.561 KB) | DOI: 10.29244/jitl.15.2.60-65

Abstract

Pemupukan merupakan salah satu komponen kegiatan pemeliharaan yang menghabiskan biaya yang cukup tinggi sekaligus memiliki pengaruh yang cukup besar terhadap pencapaian produksi tanaman kelapa sawit. Penambahan salah satu unsur hara melalui pemupukan akan menyebabkan terjadinya pergeseran keseimbangan hara di dalam tanah, oleh sebab itu kegiatan pemupukan perlu memperhatikan keseimbangan hara agar pemupukan yang dilakukan dapat lebih efisien dan efektif. Penelitian ini bertujuan untuk mencari nilai kisaran keseimbangan K, Ca, Mg di dalam tanah untuk tanaman kelapa sawit. Penelitian dilakukan dengan metode survei lapangan dengan menggunakan data hasil analisis tanah dan data produksi yang dikumpulkan dari perkebunan kelapa sawit yang tersebar di beberapa provinsi di Indonesia. Hasil penelitian menunjukkan bahwa dengan asumsi nilai sekat produktivitas 25.96 ton TBS ha-1tahun-1 kisaran nilai rasio hara yang seimbang untuk tanaman kelapa sawit masing-masing 5.6 – 10.1 untuk rasio Ca/K, 2.1 – 2.5 untuk rasio Ca/Mg dan 2.1 – 4.5 untuk rasio Mg/K. Sementara nilai kecukupan kejenuhan K, Ca, Mg masing-masing sebesar 2.5%; 11.8% dan 3.7%.
JERAPAN NITROGEN-URINE OLEH ZEOLIT DAN PENGARUHNYA TERHADAP PERTUMBUHAN TANAMAN JAGUNG (Zea mays L.) Lilik Tri Indriyati; Iswandi Anas
Jurnal Ilmu Tanah dan Lingkungan Vol 15 No 2 (2013): Jurnal Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (392.786 KB) | DOI: 10.29244/jitl.15.2.84-90

Abstract

Urine umumnya mengandung unsur hara, terutama nitrogen (N) yang tinggi, mudah larut dan tersedia bagi tanaman, tetapi mudah hilang dalam bentuk gas amonia. Nitrogen merupakan unsur hara yang sangat dibutuhkan oleh tanaman. Zeolit merupakan mineral yang memiliki mempunyai afinitas yang tinggi terhadap ion amonium. Zeolit yang mengandung amonium dapat digunakan sebagai pupuk lambat tersedia. Tujuan percobaan ini adalah untuk melihat hubungan antara ukuran zeolit dengan kemampuannya menjerap nitrogen yang terkandung dalam urine sapi, dan mengamati pengaruh ukuran dan takaran zeolit yang telah dicampur dengan urine sapi terhadap pertumbuhan tanaman jagung. Penelitian ini dilakukan dengan percobaan pot di rumah kaca yang disusun secara acak lengkap dengan tiga ulangan. Perlakuan yang diberikan adalah empat taraf takaran zeolit: 1000, 2000, 4000, dan 8000 ppm dengan dua taraf ukuran zeolit, yaitu kurang dari 60 mesh dan 32-60 mesh. Parameter tanaman dan tanah yang diukur adalah tinggi tanaman, bobot kering bagian atas dan akar tanaman, serapan N bagian atas dan akar tanaman, serta KTK tanah. Hasil percobaan menunjukkan bahwa jerapan N-urine semakin besar dengan semakin halus ukuran zeolit. Tetapi pengaruh pemberian zeolit-urine dengan ukuran 60 mesh terhadap tinggi tanaman, bobot kering bagian atas dan akar tanaman jagung umur 21 hari, serapan N akar serta KTK tanah nyata lebih tinggi daripada pemberian zeolit-urine dengan ukuran yang lebih halus (< 32 mesh). Zeolit-urine dengan takaran 2000 ppm nyata meningkatkan tinggi tanaman, bobot kering bagian atas tanaman, serapan N akar, dan KTK tanah, tetapi interaksi antara ukuran dan takaran zeolit-urine tidak berpengaruh nyata terhadap parameter yang diamati. Pada takaran zeolit-urine lebih dari 2000 ppm, semua parameter pertumbuhan tanaman cenderung menurun.
Perubahan Sifat Kimia dan Pola Pelepasan Amonium dan Nitrat pada Ultisol Darmaga yang Diberi Pupuk Pelet Berbahan Dasar Lumpur Kolam Ikan: Chemical Properties Changes and Releasing Pattern of Ammonium and Nitrate on Ultisol Darmaga Fertilized by Fishpond Sediment-Based Pellet Fertilizer Arief Hartono; Lilik Tri Indriyati; Putri Tria Santari; Neng Elin Novianti
Jurnal Ilmu Tanah dan Lingkungan Vol 21 No 2 (2019): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (663.3 KB) | DOI: 10.29244/jitl.21.2.78-86

Abstract

Fishpond sediment-based pellet fertilizer enriched with fishpond water and goat manure was made to decrease load of nitrate contamination in water bodies. The objective of this research was to evaluate the changes of some soil chemical properties and the releasing pattern of nitrogen (N)-ammonium (N-NH4+) and N-nitrate (N-NO3-) in Ultisol Darmaga which was fertilized by pellet fertilizer. The rate of pellet fertilizer which was applied to the soil was 6.10 g of pellets/300 g of soil or equivalent to 40.8 ton of pellets ha-1. This rate was based on the amount of N fertilizer for sweet corn that was 200 kg N ha-1. The pots were incubated in 1 week, 2 weeks, 3 weeks, 4 weeks, 5 weeks, 6 weeks, 7 weeks, 8 weeks, 10 weeks, and 15 weeks at field capacity condition. Soil analyses were conducted after the end of each incubation period. The results showed that in the end of incubation period, the application of pellet fertilizer increased soil pH, organic carbon, cation exchange capacity, exchangeable bases, N-NH4+, and N-NO3- and total available N which is the total amount of N-NH4+, and N-NO3- compared to those of control soil. As for the releasing pattern of N-NH4+ and N-NO3-, in the 1 week to 7 weeks of incubation N-NH4+ was dominant and decreased after that. The decrease of N-NH4+ was followed by the increase of N-NO3-. The N-NO3- was dominant from 8 weeks to 15 weeks of incubation. The results recommended that fishpond sediment-based pellet fertilizer improved the soil properties and provided available N.
Ketahanan Tanaman Bunga Matahari (Helianthus annuus L.) terhadap Cekaman Air dengan Aplikasi Hidrogel dan Waktu Penyiraman pada Regosol: Resistance of Sunflower (Helianthus annuus L.) on Water Stress by Application of Hydrogel and Watering Time in Regosol Lilik Tri Indriyati; Wahyu Purwakusuma; Septi Ichwani
Jurnal Ilmu Tanah dan Lingkungan Vol 23 No 2 (2021): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.23.2.72-77

Abstract

Application of hydrogel as soil conditioner can increase water and/or nutrient of coursed textured soil, with a possible reduction of irrigation frequency, and in turn increase plant growth. This research was aimed to investigate application of type of hydrogel and time of watering interval on the growth of sunflower plant, soil water availability, and plant resistance to water stress, and to verify the effect of combination of hydrogel type and watering time interval on sunflower growth on Regosol from Dramaga, Bogor. The experiment was arranged in completely randomized factorial design with two factors, that were hydrogel type which was consisted of no hydrogel application as control (H0), hydrogel of Terracottemâ (H1), and hydrogel of synthetic super absorbent (H2); and watering time interval which was consisted of once in 5 days of watering (P1), once in 10 days of watering (P2), and once in 15 days of watering (P3). Hydrogels application was conducted shortly before two weeks old seeds of IPB BM1 genotype sunflower were transplanted in pot containing Regosol which was equivalent to 10 kg of oven- dry weight. Variables observed were soil moisture (soil water content), soil water retention in some soil-water matric suction (pF), leaf area, stem diameter, and root length. Results of experiment showed that hydrogel application significantly increased the water availability for plants in dried soil condition as a result of long time interval of watering, stem diameter of plant, and root length of sunflower compared with no hydrogel application (control). Soil moisture, stem diameter, and root length of treatment with hydrogel of H1 were not significantly different with that of H2. Time interval of watering significantly affected leaf area, stem diameter, and soil moisture. The leaf area, stem diameter of plant, and soil moisture in once watering in 15 days (P3) were significantly lower than P1. Combination between hydrogel of Terracotem (H1) and time interval of once a five days of watering (P1) was the best treatment combination in improving the growth of sunflower plant in Regosol from Dramaga, Bogor.
Pembinaan Produksi Kompos Limbah Pertanian dan Pemanfaatannya di Kecamatan Tamansari, Kabupaten Bogor Asdar Iswati; Lilik Tri Indriyati
Agrokreatif: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 1 No. 1 (2015): Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrokreatif.1.1.52-61

Abstract

Most of agricultural lands in Pasir Eurih Village are paddy field simple irrigation system, while most of them in Sukajadi Village are upland. Farmers in both villages are used to composting organic residues, but the composts was not used maximally. The aim of the IbM activities was: (1) To guide our partners to produce better quality of composts sustainable; and(2) To motivate the community of peasant  using composts for their farm. The best compost resulted by IbM-3 guidance was made from rice straw, leaf litter, and chicken manure mixed with rice husk as their bedding by ratio of 3:2:1:1. This compost contained macronutrients (N, 0.56%, P2O5  1.09%, K2O 1.44%, Ca 5.72%, Mg 0.43%, and Na 0.08% respectively), micronutrients Fe 5.309 ppm, Mn 342 ppm, Cu 42 ppm, Zn 69 ppm, and B 33 ppm respectively), and heavy metals of Pb was 4.8 ppm and Cd 0.04 ppm. The addition of 3-4 ton/ha of this compost into paddy soil could reduce chemical fertilizers up to 50%. The addition of 3 ton/ha of this compost to upland soil planted by sweet corn produce same with application of chicken manure bedding or goat manure. Socialization of the benefit of using compost in increasing the soil fertility and crop yield have raised the peasant’s knowledge. It was showed by the mean value of this post test raised 19.67 points for fertilizer and soil fertility matter and 16.63 points for organic materials or natural fertilizers matter. 
Co-Authors . Sudarsono Ajang Christrianto Asdar Iswati Atang Sutandi Bandung Sahari BANDUNG SAHARI Budi Nugroho Budi Nugroho Budi Nugroho Darmawan Eko Noviandi Ginting Erlina Rahmayuni Erlina Rahmayuni, Erlina Fahrizal Hazra Ginting, Ina Febria Gunawan Djajakirana Gunawan Sutio Hadi, Muhammad Nurul HAPPY WIDIASTUTI Happy Widiastuti Hartono, Arif Heru Bagus Pulunggono I Nyoman Sujana Irianti, Enjeline Iskandar Iskandar Iswandi Anas Kukuh Murtilaksono Latifah Kosim Darusman LATIFAH KOSIM DARUSMAN Mulyawan, Ronny Neng Elin Novianti Parjono Parjono Purwakusuma, Wahyu Putri Tria Santari Rika Andriati Sukma Dewi Rykson Situmorang Rykson Situmorang Septi Ichwani Septiyana, . Sisworo, Widjang Herry Sri Djuniwati Sudarsono Sugeng Santoso Supiandi Sabiham Syaiful Anwar Widjang Herry Sisworo Yusra, Arwani Maulida Zahran, Marsya Muthya Zulfajrin, Moh