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Soil REns
Published by Universitas Padjadjaran
ISSN : 14114224     EISSN : 26854058     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
SoilREns merupakan jurnal ilmiah ilmu tanah pertanian dan lingkungan. Berisi kumpulan hasil penelitian terkini mengenai isu-isu ilmu tanah pertanian dan lingkungan. Diterbitkan atas kerjasama antara Departemen Ilmu Tanah dan Sumberdaya Lahan Fakultas Pertanian UNPAD, bekerjasama dengan Himpunan Ilmu Tanah Indonesia (HITI).
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Articles 7 Documents
 1 
Search results for , issue "Vol 20, No 1 (2022)" : 7 Documents clear
Aplikasi Pupuk Hayati Bakteri Endofitik Penambat N2 dan Pupuk N untuk Meningkatkan Pertumbuhan Tanaman Jagung (zea mays l.) Pada Ultisols Kentrong Mieke Rochimi Setiawati; Pujawati Suryatmana
Soilrens Vol 20, No 1 (2022)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v20i1.41355

Abstract

Corn cultivation on Ultisols is limited due to low nitrogen content of the soil. Efforts to increase the N content in the soil include the use of biofertilizers by symbiotic nitrogen-fixing endophytic bacteria. This study assesed various combination of nitrogen fertilizer doses and N2-fixing endophytic biofertilizer to increase the growth of maize in Ultisols Kentrong. The experiment was conducted at the Ciparanje Experimental Greenhouse, Faculty of Agriculture, Universitas Padjadjaran, Jatinangor. A randomized block design was used which consisted of 16 treatments with 3 replications, with a combination of doses of urea fertilizer and endophytic biofertilizer applied to seeds or planting holes. The experimental results showed that the combination of urea fertilizer and biofertilizer doses had a significant effect on the population of endophytic bacteria in the roots and leaves of corn plants, plant wet weight, root dry weight and shoot dry weight, plant height, stem diameter, plant nitrogen uptake and content of plants but was not significantly affected on the number of corn leaves. Combination of 80 kg ha-1 urea fertilizer and 3.6 kg ha-1 of biofertilizer was the best combination which increased the dry weight of the corn plant and reduced the dose of urea fertilizer
Evaluasi Kesesuaian Lahan untuk Tanaman Mulato (Brachiaria hybrid cv. Mulato) pada Tiga Lokasi yang Berbeda Ferdy Firmansyah; Rija Sudirja; Apong Sandrawati; Mahfud Arifin; Iin Susilawati
Soilrens Vol 20, No 1 (2022)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v20i1.41351

Abstract

The objective of this research is to evaluate actual and potential land suitability of mulato grass (Brachiaria hybrid cv. Mulato) as forage crop at Dago Dairy Lembang, UPBS Pangalengan and UPBS’s field at Cipunagara. The research is qualitative descriptive research with survey that the data taken from the field and supported by laboratory analysis. Soil sampling carried out by composite sampling method with diagonal systhematic pattern. Land quality obtained from land observation and laboratory analysis compared with mulato’s land suitability criteria to obtain the land suitability level. The actual land suitability level of mulato grass were about S2 (moderately suitable) to S3 (marginally suitable) at Dago Dairy’s field, S2 and S3 at UPBS Pangalengan’s field, S2, S3 and N (non-suitable) at UPBS’s field at Cipunagara. Limiting factors found were oxygen availability (oa), nutrient retention ability (nr), nutrient availability (na) and erosion hazard (eh). Each limiting factor fixed by soil drainage, calcium carbonate or sulfur application, fertilization and cover crop cultivation. Potential suitability of mulato grass after improvement were S1 to S2 at Dago Dairy, S1 to S2 at UPBS Pangalengan and S1, S2 to S3 at UPBS’s land at Cipunagara.
Efektifitas Azotobacter sp. dan Pseudomonas sp. sebagai Plant Growth promoting Rhizobacteria (PGPR) terhadap tanaman Tomat (Lycopersicum esculentum Mill.) pada Andisol-Lembang Pujawati Suryatmana; Nadia Nuraniya Kamaluddin; Mieke Rochimi Setiawati
Soilrens Vol 20, No 1 (2022)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v20i1.41364

Abstract

The concept of balanced fertilization application is appropriate for tomato plant cultivation. However, most farmers still apply inorganic fertilizers excessively, which negatively impacts the environment and plant productivity. Alternative efforts can be made to reduce the usage for inorganic fertilizers through effective plant growth-promoting rhizobacteria (PGPR) application. This research studied the characteristics of the PGPR inoculants effectiveness (Azotobacter sp. and Pseudomonassp.) combined with NPK towards tomato in Lembang Andisol. The experimental design used was randomized block design, with three replications: A (Control), B (1 PGPR + 0 NPK), C (1 PGPR + NPK), D (1 PGPR + NPK), E (1 PGPR + NPK), F (1 PGPR + 1 NPK), G (1 PGPR + 1 NPK), H (2 PGPR + 1 NPK), I (0 PGPR + 1 NPK), J (½ PGPR +1 NPK). The results showed the treatments of C, F, and J resulted in higher total soil N content than the control treatment. Meanwhile, C and D treatment increased plant N uptake compared to control. Nitrogen uptake increased with the decrease of NPK dose application. All of the PGPR inoculation treatments with NPK combination did not increase Azotobacter sp. population and tomato yield. The yield of tomatoes per hectare showed that the PGPR inoculation at a dose of 3 l/ha (1 PGPR + NPK) increased yield by 28.7% compared to 1 NPK (150 kg/ha of Urea, 100 kg SP-36 and 50 kg/ha KCl) dose. Application of 3 l/ha of PGPR inoculant can save up to 75% of NPK usage
Karakterisasi Media Tanam dari Kombinasi Cocopeat dan Pupuk Kandang Ayam Nadia Nuraniya Kamaluddin; Reginawanti Hindersah; Diana Nafitri Cahayaningrum; Putri Sri Judiani Purba; Diky Indra Wibawa; Mieke Rochimi Setiawati
Soilrens Vol 20, No 1 (2022)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v20i1.41352

Abstract

Indonesia is one of the largest coconut (Coconus nucifera L.) producing country in the world. Cocopeat can be mixed with chicken manure because of its relatively higher nutrient content compared to other manures. Cocopeat and chicken manure mixture can be an alternative to soilless planting media to support sustainable agriculture. In this study, the chemical and biological characters of cocopeat and chicken manure mixture were analyzed. Five different of combinations of cocopeat and chicken manure mixture: A (1: 1), B (2: 1), C (1: 2), D (2: 3), E (3: 2) were used as treatment. A Completely Randomize Design (CRD) with two replications were used. Data were analyzed with Independent T-test methods. The lowest C/N (33,39) was from D treatment (2:3), highest P2O5 content (0,08%) by C treatment (2:1), highest K2O content (0,03%) from A treatment (1:1) as control, the highest Ca-dd content (31,3%) was E treatment (3:2), and the highest Mg-dd content (1,45%) was obtained from control. All treatments reached the minimum moisture content limit for planting media. The total number of highest bacteria (161 x 107 cfu/g) is showed by D treatment (2:3), and the highest fungi level (58 x104 cfu/g) shown by C treatment (2:1).
Effect of Organic-Based Humic Acid on Yield of Rice Grown in Heavy Metal Contaminated Soil Reginawanti Hindersah; Antonio Yusuf; Betty Natalie Fitriatin; Triani Dewi; Dedi Nursyamsi; Mulyadi Mulyadi
Soilrens Vol 20, No 1 (2022)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v20i1.41353

Abstract

Application of certain fertilizer during long-term food crops production, might increase the heavy metal (HM) level in soil. An inexpensive and easy method to decrease this contaminant uptake by plants is application of humic acid (HA) which has the capacity to bind toxic substances. Pot experiment had been conducted to observe the influence of organic-based HA on the growth and yield of rice grown in soil contaminated with Cadmium and Lead. The experiment laid in Randomized Block Design with four treatments and six replications. Rice was grown in Inceptisols and treated with HA extracted from various organic matter. Control plants did not receive any HA. All plants had not shown any HM toxicity symptoms. The plant height as well as straw dry weight in HA-treated soil was no different with control plant. Various HA decreased available Cadmium and Lead in soil and in unhusked grain but did not affect yield traits. However, the reduced content of HM was also caused by soil acidity that shift to neutral during puddling. This experiment suggested that HA have a role to control HM availability in paddy soil and hence reduced their uptake by rice plants.
Aplikasi Pupuk Organik terhadap Diversitas Arthropoda Akuatik serta Performa Tanaman Padi Hitam pada Ekosistem Sawah Vira Kusuma Dewi; Tiara Febricyanti Putri Senjaya; Fitri Widiantini; Agus Susanto; Sri Hartati; Lindung Tri Puspasari; Rika Meliansyah
Soilrens Vol 20, No 1 (2022)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v20i1.41354

Abstract

The aquatic ecosystems in rice fields has macroorganisms such as aquatic arthropods which have an important function in the food web. The siam weed and neem cake can be utilized as organic fertilizer to support the productivity and biodiversity of the paddy field, This research aims to understand application of organic fertilizer on diversity of aquatic arthropods and black rice performance in the field ecosystem. The experiment was carried out in paddy field at Jatinangor from January to June 2020. The method used was an experimental method with a Randomized Complete Block Design consisted of five treatments (neem cake, siam weed compost, cow manure, synthetic fertilizer and control) with six replications. The result showed that the abundances of aquatic arthropods have tendency to be higher in neem cake at 1104 individuals and siam weed compost treatments at 905 individuals compared to the cow manure, NPK and control. Furthermore, the diversity index of the aquatic arthropods in all treatments were categorized as moderate with details as follow neem cake (H’=1,726), cow manure (H’=1,450); synthetic fertilizer (H’=1,458); siam weed compost (H’=1,450) and control (H’=1,502). In addition, the evenness index (E) of aquatic arthropods was higher in neem cake treatment (E=0,623) compared to other treatments. Whereas, the dominance index (C) and richness index (R) in all treatments showed no dominant species and it classified as low category. The results also showed that the siam weed compost were not significantly different with all treaments except NPK (synthetic fertilizer) in plant hight, tiller number and SPAD value.
Pengaruh Pupuk Hayati Berbasis Hidrogel dan Pupuk P terhadap Pertumbuhan dan Hasil Jagung pada Inceptisols asal Jatinangor Betty Natalie Fitriatin; Nabila Syifa Ariani; Haryo Probo Kusumo; Mieke Rochimi Setiawati
Soilrens Vol 20, No 1 (2022)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v20i1.41350

Abstract

Inceptisols are soils that have problems with fertility. Inorganic P fertilizer is a quick choice to restore nutrient availability for plants, but long-term use may harm soil and plants. Another alternative to this problem by using a biofertilizer. Biofertilizer contains microbes that can promote plant growth by increasing the supply of nutrients through their biological activities in the soil. Some microbes are known to have to dissolve phosphate ability through secretion of organic acids and enzymes mechanism. This experiment was conducted to examine the effect of hydrogel-based biofertilizer combined with inorganic P fertilizer (SP-36) on the growth and maize yields on Inceptisols Jatinangor. The biofertilizers were a consortium of phosphate solubilizing microbes (PSM) consisting of Bacillus subtilis, Pseudomonas mallei, Burkholderia cepacia, and Trichoderma asperellum. The pot experiment using a Randomized Block Design (RBD) consisted of 9 treatments with 3 replications. The treatments consisted of control, recommended dose of inorganic P fertilizer (100 kg Ha-1), biofertilizer dose of 50 kg Ha-1, and a combination of biofertilizer and inorganic P fertilizer. The results showed that the combination of ½ dose of hydrogel-based biofertilizer and ¾ dose of P fertilizer increased maize yield. In addition, the application of biofertilizer can reduce inorganic P fertilizer needs up to ¾ recommended dose.

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