cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota adm. jakarta selatan,
Dki jakarta
INDONESIA
Jurnal Sumberdaya Lahan
Published by Kementerian Pertanian
ISSN : 19070799     EISSN : 27227731     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences
diterbitkan oleh Balai Besar Litbang Sumberdaya Lahan Pertanian, Jurnal Sumberdaya lahan terbit 2 kali setahun memuat suatu tinjauan terhadap hasil-hasil penelitian atau terhadap suatu topik yang berkaitan dengan aspek tanah, air, iklim, dan lingkungan pertanian
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue "Vol 5, No 2 (2011)" : 5 Documents clear
Opportunity for the Implementation of Conservation Farming for Cropping Gambier in West Sumatra . WINARDI
Jurnal Sumberdaya Lahan Vol 5, No 2 (2011)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v5n2.2011.%p

Abstract

Gambier is one of the leading commodity from West Sumatra of plantation subsector. Total area gambier cultivation in West Sumatra, currently covers 18,204 ha with a production of 10,114 tons/year. Gambier planting areas are concentrated in two regions, namely District of Limapuluh Kota and District of Pesisir Selatan. Gambier is generally cultivated by traditional farmers in the forest, both protected forest and community forest. Areas with steep slopes are usually not intended as an area of cultivation. Classes of land capability in this area range from Class V to Class VIII. The low ability of farmers, whether in farming or the economic causing of gambier cultivation technology will be potluck. Such circumstances likely causing land degradation on gambier plantation. Conservation farming with agroforestry practices have an opportunity to be developped because of low cost potentially increase income and welfare. The conservation farming has been practiced by some gambier farmer
Environment Friendly Open Pit Mining Systems and Reclamation Post-Mining Efforts to Improve the Quality of Land Resources and Soil Biodiversity SUBOWO GITOSUWONDO
Jurnal Sumberdaya Lahan Vol 5, No 2 (2011)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v5n2.2011.%p

Abstract

Conventional open pit mining systems can changing the landscape and soil surface ecosystem balance, reducing soil productivity and environmental quality. On the other hand the good mining activities can increase national income, reduce pollution, decrease land slope, improve the thickness of topsoil, decrease soil density, increase infiltration- percolation and reduce soil erosion. Good implementation control of the open pit mining with the preservation of land resources and soil biodiversity can be achieved by: (1) mining blocks done from the bottom area, (2) reclamation carried out directly after the completion of mining, (3) formation of land surface with a wide terrace bench >5 m, vertical-interval bench terraces <2 m, the percentage of slope ± 60%, (4) removing the top layer of soil (topsoil) was placed back on the top layer with a thickness >20 cm and enriched with lime, organic matter, fertilizer or biofertilizer (5) biorehabilitation with endogeic earthworms and planting of legume cover crops as pioneer plants to accelerate the natural succession, and (6) maintenance up to a climax ecosystem as expected
The Dynamics Surface Adsorption of Fe Oxide-Humic Substance Complexes ARIFIN FAHMI
Jurnal Sumberdaya Lahan Vol 5, No 2 (2011)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v5n2.2011.%p

Abstract

Iron (Fe) oxide is the most abundant metallic oxides in the soils, it is highly reactive so that it has a huge influence on the dynamics of chemical balance in the soil both in terms soil fertility and environmental decontamination from toxic metal. Naturally, the surface of Fe oxide is coated with organic substances in the form of complexes compound, this condition may influence on its reactivity and retention capacity to ions in the soil solution. The presence of humic substances may increase or decrease the adsorption capacity of Fe oxide in which the complexes adsorption capacity is highly dependent on some environmental factors. Complexes formation of Fe oxide – humic substances increase cation adsorption esspecially in very acid condition. Ionic strength tends to influence on cation adsorption only at basic pH condition and the increasing of ionic strength is increased cation adsorption by complexes. Adsoption processes is also influenced by concentration, molecule weight dan type of adsorbent and adsorbate material. The presence of competition between ions and blocking process on adsorption process decreases a number of sorbed ion.
Mechanisms of Releasing Fixed Potassium as Available Nutrient for Plant Growth on Smectitic Soils DEDI NUSYAMSI
Jurnal Sumberdaya Lahan Vol 5, No 2 (2011)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v5n2.2011.%p

Abstract

Smectitic soils have considerable prospects to be developed into agricultural land. The distribution of these soils is quite large, i.e. more than 2.12 million ha (approximately 2:12 million of Vertisols as well as Alfisols and Inceptisols which have vertic subgroup). Smectite mineral contributed significantly to the amount of soil negative charge and controled soil buffering capacity and soil K maximum sorption. Top soil (0-20 cm) of smectitic soils are generally clay-textured, neutral to alkaline in soil reaction, moderate to high in potential K, low to high in exchangeable K, and moderate to high in cation exchange capacity. Although soil total K was high, but most of the soil K was in an unexchangeable form so that it was not immediately available to plants. While soil buffering capacity and maximum sorption on K were high. One important aspect in the management of soil K is the use of K contained in the soil. This method is quite effective, particularly for smectitic soils. The use of contained K in soil can be through the mechanism of release from unexchangeable soil K pool to exchangeable soil K pool as well as desorption from exchangeable soil K pool to soluble soil K pool. After both rection take place then, the plants will easily absorb K for their growth.
The Role of Land Conservation in Plantation Management A ABAS IDJUDIN
Jurnal Sumberdaya Lahan Vol 5, No 2 (2011)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v5n2.2011.%p

Abstract

The main problem of agricultural activities in the steep slope upland area if without adequate soil conservation practices is that it will results in soil erosion. Soil erosion causes agricultural land degradation which reduces the physical, chemical, and biological soil roperties and decreases land productivities. Soil erosion is very harmful to agricultural land productivities, because loss of the fertile topsoil in a relatively short time causes decrease of fertility and productivity of the soils. The role of conservation techniques are the way of soil conservation, which have three principles of definitions, i.e. a) to protect the soil against soil degradation, b) to improve the degraded soil, and c) to make the soil more fertile. Soil conservation practice in the field have used two methods i.e. mechanical conservation methods and vegetative conservation methods. Mechanical conservation method is the earth embankments constructed across the slope to intercept surface run off and to protect soil erosion (soil cultivation along the contour, terraces constructed, contour bank, waterways ditch, drop structure, silt pit, checkdam, gully plug, etc). While the vegetative methode are reducing the kinetic energy of the raindrops on the soil surface, reducing the run off velocity, increasing infiltration rate and reducing soil water contents. The effectiveness of soil conservation techniques in uplands area on the the soil erosion and the land productivity is different in each location. This is because of the difference of the land capability (site specific, soil behavior and properties, and the climate). Farmers’ motivation as the user of the soil conservation technologies is included as one on the determinant factors of the successfulness in improving degraded upland and in increasing land productivity.

Page 1 of 1 | Total Record : 5

 1 

Filter by Year

2011 2011


Reset
Filter By Issues
All Issue Vol 16, No 1 (2022): Akan Terbit Resmi Pada Bulan Juli Vol 15, No 2 (2021) Vol 15, No 1 (2021) Vol 14, No 2 (2020) Vol 14, No 1 (2020) Vol 13, No 2 (2019) Vol 13, No 1 (2019) Vol 12, No 2 (2018) Vol 12, No 1 (2018) Vol 11, No 2 (2017) Vol 11, No 1 (2017) Vol 10, No 3 (2016): (Edisi Khusus) Vol 10, No 2 (2016) Vol 10, No 1 (2016) Vol 9, No 2 (2015) Vol 9, No 1 (2015) Vol 8, No 3 (2014): Edisi Khusus Vol 8, No 2 (2014) Vol 8, No 1 (2014) Vol 7, No 2 (2013) Vol 7, No 1 (2013) Vol 6, No 2 (2012) Vol 6, No 1 (2012) Vol 5, No 02 (2011): Desember 2011 Vol 5, No 01 (2011): Juli 2011 Vol 5, No 2 (2011) Vol 5, No 1 (2011) Vol 4, No 02 (2010): Desember 2010 Vol 4, No 01 (2010): Juli 2010 Vol 4, No 2 (2010) Vol 4, No 1 (2010) Vol 3, No 02 (2009): Desember 2009 Vol 3, No 01 (2009): Juli 2009 Vol 3, No 2 (2009) Vol 3, No 1 (2009) Vol 2, No 02 (2008): Desember 2008 Vol 2, No 01 (2008): Juli 2008 Vol 2, No 2 (2008) Vol 2, No 1 (2008) More Issue