Soil fertility status under shifting cultivation in East Kalimantan with special reference to mineralization patterns of labile organic matter

Soil test-based fertility management is important for sustainable soil management. This study was carried out to determine the soil fertility status of the Agriculture Research Station, Belachapi, Dhanusha, Nepal. Using soil sampling auger 25 soil samples were collected randomly from a depth of 0-20 cm. Soil sampling points were identified using GPS device. Following standard methods adopted by Soil Science Division laboratory, Khumaltar, the collected soil samples were analyzed to find out their texture, pH, N, P2O5, K2O, Ca, Mg, S, B, Fe, Zn, Cu, Mn and organic matter status. The soil fertility status maps were made using Arc-GIS 10.1 software. The observed data revealed that soil was grayish brown in colour and sub-angular blocky in structure. The sand, silt and clay content were 36.03±3.66%, 50.32±2.52% and 25.42±2.25%, respectively and categorized as eight different classes of texture. The soil was acidic in pH (5.61±0.14). The available sulphur (0.73±0.09 ppm) status was very low, whereas organic matter (1.34±0.07%), available boron (0.56±0.10 ppm), available zinc (0.54±0.22 ppm) and available copper (0.30±0.01 ppm) were low in status. The extractable potassium (95.52±13.37 ppm) and extractable calcium (1264.8±92.80ppm) exhibited medium in status. In addition, available phosphorus (33.25±6.97 ppm), available magnesium (223.20±23.65 ppm) and available manganese (20.50±2.43 ppm) were high in status. Furthermore, available iron (55.80±8.89 ppm) status was very high. To improve the potentiality of crops (maize, rice, wheat etc.) for studied area, future research strategy should be made based on its soil fertility status.

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Availibility of P, K in paddy Land Under Organic application

Jurnal Pertanian Tropik ◽

10.32734/jpt.v5i3.3117 ◽

2018 ◽

Vol 5 (3) ◽

pp. 434-440

Author(s):

Fitra Syawal Harahap ◽

Abdul Rauf ◽

Benny Hidayat ◽

Hilwa Walida ◽

Jamidi ◽

...

Keyword(s):

Organic Matter ◽

Soil Fertility ◽

Chemical Properties ◽

Soil Samples ◽

Paddy Fields ◽

Soil Chemical Properties ◽

Phosphorus Fertilization ◽

Fertility Status ◽

Review Management ◽

Soil Fertility Status

Organic materials in situ remaining paddy crops in paddy fields are much abandoned by farmers. Most of the remaining harvested are burned, stacked in the cultivated, or used for animal feed or as a fungus. Straw compost is source of Potassium (K) and Silica (Si). About 80% of K absorbed by plants is in the straw. The return of straw to the soil may slow the impoverishment of Potassium (K) in the soil. This study aims to find out how the availability of phosphorus (P) and potassium (K) nutrients by giving organic matter as soil fertility status in paddy fields in Beringin Subdistrict, Deli Serdang Regency and to review management alternatives that are in accordance with the soil fertility status in the Central Land Rice fields in Beringin Subdistrict, Deli Serdang Regency. This research was carried out in the Central Rice Field in Beringin Subdistrict, Deli Serdang Regency ± 11 meters above sea level. The taking of soil samples was taken in the upper layer at the top soil depth of 0-20 cm, 20-40 cm and the coordinates were recorded using GPS (Global Positioning System). While information on land management is obtained by direct observation in the field and in-depth interviews with farmers in snow ball which aims to obtain complete information from farmers. Soil samples that have been taken in the field are then analyzed in the laboratory. Soil chemical properties analyzed in laboratory soil chemical properties analyzed at P2O5 Bray II (ppm) laboratory K2O Hcl 25% (mg / 100g). To determine the chemical properties of soil with certain criteria that have been determined. Based on Technical Guidelines for Evaluation of Soil Fertility The direction of management of soil fertility needs to be added to organic matter and phosphorus fertilization regularly so that soil fertility can be sustainable. Further research is needed in order to find out the addition of phosphorus fertilizer and organic matter in each unit of land.

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Soil fertility status for wheat crop production based on its soil organic matter and nitrogen contents

ZANCO Journal of Pure and Applied Sciences ◽

10.21271/zjpas.30.5.4 ◽

2018 ◽

Vol 30 (5) ◽

Keyword(s):

Organic Matter ◽

Soil Organic Matter ◽

Soil Fertility ◽

Crop Production ◽

Wheat Crop ◽

Fertility Status ◽

Soil Fertility Status ◽

Nitrogen Contents

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Soil Fertility Status under Different Tree Cropping System in a Southwestern Zone of Nigeria

Notulae Scientia Biologicae ◽

10.15835/nsb326050 ◽

2011 ◽

Vol 3 (2) ◽

pp. 123-128 ◽

Cited By ~ 6

Author(s):

Clement O. OGUNKUNLE ◽

Olusegun O. AWOTOYE

Keyword(s):

Organic Matter ◽

Soil Fertility ◽

Organic Matter Content ◽

Matter Content ◽

High Rate ◽

Soil Parameters ◽

Forest Site ◽

Fertility Status ◽

Sole Cropping ◽

Soil Fertility Status

Tree cropping has been known to bring about changes in edaphic component among other components of the ecosystem through their interactions with the soil and soil faunas. Premised on this, this study assessed the effects of sole cropping of teak and intercropping of cocoa and kola on the soil fertility status. The study was carried out using stratified-randomed sampling technique for the study plots in all the sampling sites. Three sampling sites consisting of four (4)-4oo m2 sampling plots each were established in which vegetation and some soil parameters were assessed. Results analysis showed that the synergistic interaction of leaves decomposition of cocoa and kola improved the organic matter content of the soil under the cocoa/kola site. Considerable improvement in soil fertility was enjoyed in the cocoa/kola site due to the large girth sizes and basal area of trees present in the cocoa/kola site while soil under the sole cropping of teak was impoverished. The degradation effects was due to the high rate of nutrient uptake of the teak, organic matter content was high in the forest site (9.12%) and cocoa/kola site (7.34) while the least was in the teak site (3.04%). A very strong correlation existed between organic matter content and some vegetation parameters.

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ANALISIS TANAH UNTUK REKOMENDASI PEMUPUKAN PADA BUDIDAYA JAGUNG, PADI DAN KETELA POHON

Caraka Tani Journal of Sustainable Agriculture ◽

10.20961/carakatani.v30i2.11924 ◽

2015 ◽

Vol 30 (2) ◽

pp. 91

Author(s):

Bagus Sri Mulyanto ◽

Supriyadi Supriyadi ◽

Djoko Purnomo

Keyword(s):

Organic Matter ◽

Plant Growth ◽

Soil Fertility ◽

Survey Method ◽

High Dose ◽

Nutrient Elements ◽

Fertility Status ◽

Chemical Content ◽

Soil Fertility Status ◽

Macro Nutrients

The application of fertilization and giving organic matter of different causes differences in soil fertility status, with the availability of macro nutrients on a farm, then to know the action proper fertilization. The purpose of this study is to determine the dose fertilization fertility status of the local potential. The research was conducted using a survey method, ie by observing and sampling the soil directly in the field, followed by laboratory analysis to determine the chemical content of the soil. The results showed the level of soil fertility in Wonogiri low fertilizer needs are different in each district in Wonogiri. Areas with low nutrient availability will provide a high dose of fertilizer, and conversely a low fertilization results indicate the availability of nutrient elements in the soil are sufficient for plant growth, although it should still be nurtured to backup next season.

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Soil Fertility Mapping of Different VDCs of Sunsari District, Nepal Using GIS

International Journal of Applied Sciences and Biotechnology ◽

10.3126/ijasbt.v6i2.20424 ◽

2018 ◽

Vol 6 (2) ◽

pp. 142-151

Author(s):

Nabin Rawal ◽

Keshav Kumar Acharya ◽

Chet Raj Bam ◽

Kamal Acharya

Keyword(s):

Organic Matter ◽

Soil Fertility ◽

Total Nitrogen ◽

Hot Water ◽

Available Phosphorus ◽

Silty Clay ◽

Clay Loam ◽

Fertility Status ◽

The Mean ◽

Soil Fertility Status

Soil fertility degradation has become a major problem for agricultural management in Nepal. A detailed soil fertility status of different VDCs of Sunsari district was investigated during 2015 and soil related crop production constraints were identified for proper utilization of agricultural land. Total 131 numbers of geo-referenced (GPS based) composite surface soil samples (0-15 cm) were collected from eleven Village Development Committees of Sunsari District. The sample points were recorded with a differential global position system and mapped using Geographic Information System (GIS). Soils were analyzed for mechanical composition, pH, organic matter, total nitrogen, available phosphorus, potassium and micronutrients like Boron, Zinc, Copper and Iron. About 38.9% soils were found to be silty clay loam, 20.6% were silty clay, 19.1% were clay loam and 21.4% were of other textural classes. Most of the soils were acidic and only few were neutral and slightly alkaline in nature. Soil Organic matter varies from 3.57% to 0.28% with a mean value of 1.53 %. The mean total nitrogen, available phosphorus, potassium was found to be 0.08%, 44.37 kg/ha and 128.04 kg/ha respectively. The mean hot water extractable Boron, DTPA extractable Copper, Zinc and Iron was found to be 0.14, 0.06, 0.15 and 10.71 mg/kg respectively. Thematic maps were prepared for each soil parameters using ArcGis10.1 software and ordinary Kriging interpolation was used in order to predict values for not sampled locations. The fertility maps provide the readymade source of information about soil fertility status and serve as the decision making tool for successful raising and development of crops. It can be concluded from the above study that GPS and GIS based soil fertility maps helps farmers, scientists, planners and students in providing soil test based fertilizer recommendation for intensive and sustainable site specific crop production.Int. J. Appl. Sci. Biotechnol. Vol 6(2): 142-151

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PENGARUH BATUAN INDUK DAN KIMIA TANAH TERHADAP POTENSI KESUBURAN TANAH DI KABUPATEN KEPULAUAN SULA, PROVINSI MALUKU UTARA

Jurnal Pengkajian dan Pengembangan Teknologi Pertanian ◽

10.21082/jpptp.v22n3.2019.p342-352 ◽

2020 ◽

Vol 22 (3) ◽

pp. 342

Author(s):

Himawan Bayu Aji ◽

Amiruddin Teapon

Keyword(s):

Organic Matter ◽

Soil Fertility ◽

Organic Matter Content ◽

Matter Content ◽

Source Rocks ◽

Soil Reaction ◽

Organic C ◽

Fertility Status ◽

Fertility Potential ◽

Soil Fertility Status

ABSTRACT Effect of Source Rocks and Soil Chemical Towards Land Fertility Potential in Sula Kepulauan District, North Maluku Province. The study aimed to determine the condition of soil fertility potential. Parameters used as the basis of assessment of potential fertility of the soil were the type of main rock, weathering processes and mineral content of the native rock while chemically research was emphased on organic matter content, soil pH, CEC, base saturity and essential nutrients (N, P, K). General lithology in the study area were grouped into rocks and rock volkan sediman. Aluvio-marine sedimentary rocks and aluvio-collovium were deposition materials from a variety of rocks in the study contained a number of nutrients and organic matter. Meanhile volkan rocks included basalt and andesite-granidiorit neutral to alkaline. Contained elements that produced fertile lands both physically and chemically. Based on the analysis, the average soil was classified as slightly acid (pH 5.6). The lower layers of soil reaction on average relatively was acidic (pH 5.1). Soil organic matter in the form of organic-C showed the top layer of a low average (1.58%), whilst the layer below average was very low (0.83%). CEC soil layers above and below the average were moderate (20.66 me/100 g) and (19.6 me/100 g). Base saturations (KB) to these two layers of soil on top and below the average were classified as moderate (55%) and (51%). Levels of nitrogen (N-total) topsoil with layers below average are low valued (0.18%) and (0.11%). Classified as very low, phosporus level in both layers were above the average which were 5.40 ppm and 3.10 ppm respectively. Potassiums were very low in the second layer of 5.13 mg/100 g and 3.81 mg/100 g. The parameters used to assess soil fertility status were CEC, KB, P2O5 which were extracted with HCl 25%, and K2O was extracted with HCl 25% and C-organic soil. Potential assessment of soil fertility status based on lithology and soil chemistry acquired the status of soil fertility was low.Keywords: potential soil fertility, maint rock, chemical ABSTRAK Kajian ini bertujuan untuk mengetahui kondisi kesuburan tanah potensial. Parameter yang dijadikan dasar penilaian potensi kesuburan tanah adalah jenis, proses pelapukan, dan kandungan mineral batuan induk sedangkan secara kimia penelitian ditekankan pada kandungan bahan organik, pH tanah, KTK, KB, dan unsur hara esensial (N, P, K). Secara umum litologi di wilayah studi dikelompokan ke dalam batuan sediman dan batuan volkan. Batuan sedimen aluvio-marine dan aluvio-koluvium merupakan bahan-bahan endapan dari berbagai batuan di wilayah studi yang banyak mengandung unsur hara dan bahan organik. Batuan volkan meliputi andesit-basal dan granidiorit bersifat netral sampai basa, mengandung unsur-unsur yang menghasilkan tanah-tanah subur baik secara fisik maupun kimia. Berdasarkan hasil analisis tanah pH rata-rata tergolong agak masam (pH 5,6). Lapisan bawah reaksi tanah rata-rata tergolong masam (pH 5,1). Bahan organik tanah dalam bentuk C-organik menunjukkan pada lapisan atas rata-rata rendah (1,58%), sementara lapisan bawah rata-rata sangat rendah (0,83%). KTK tanah lapisan atas maupun bawah rata-rata tergolong sedang (20,7 me/100 gram) dan (19,6 me/100 gram). Kejenuhan basa (KB) tanah pada keduan lapisan atas dan bawah rata-rata tergolong sedang yaitu (55%) dan (51%). Kadar nitrogen (N-total) tanah lapisan atas sama dengan lapisan bawah rata-rata tergolong rendah (0,18%) dan (0,11%). Kadar fosor (P2O5) tergolong sangat rendah, di kedua lapisan atas rata-rata sebesar 5,40 dan 3,10 me/100g. Unsur hara kalium (K2O) sangat rendah pada kedua lapisan 5,13 mg/100 gram dan 3,81 mg/100 gram. Parameter yang digunakan untuk menilai status kesuburan tanah yaitu KTK, KB, P2O5 yang diesktrak dengan HCl 25%, sedangkan K2O diekstrak dengan HCl 25% dan C-organik tanah. Penilaian potensi status kesuburan tanah berdasarkan litologi dan kimia tanah diperoleh status kesuburan tanah tergolong rendah.Kata kunci: kesuburan tanah potensial, batuan induk, kimia

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Soil Fertility Status and Potential Organic Inputs for Improving Small Holder Crop Production in the Interior Savanna Zone of Ghana

Journal of Sustainable Agriculture ◽

10.1300/j064v25n04_07 ◽

2005 ◽

Vol 25 (4) ◽

pp. 69-92 ◽

Cited By ~ 8

Author(s):

J. O. Fening ◽

T. Adjei-Gyapong ◽

E. Yeboah ◽

E. O. Ampontuah ◽

G. Quansah ◽

...

Keyword(s):

Soil Fertility ◽

Crop Production ◽

Fertility Status ◽

Soil Fertility Status ◽

Small Holder ◽

Savanna Zone

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Soil fertility status of some of the intensive crop growing areas under major agroecological zones of Bangladesh

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v41i4.30705 ◽

2016 ◽

Vol 41 (4) ◽

pp. 735-757 ◽

Cited By ~ 3

Author(s):

NC Shil ◽

MA Saleque ◽

MR Islam ◽

M Jahiruddin

Keyword(s):

Organic Matter ◽

Soil Fertility ◽

Calcareous Soils ◽

Clay Content ◽

Soil Samples ◽

Exchangeable K ◽

Low Level ◽

Fertility Status ◽

Agroecological Zones ◽

High Level

Laboratory studies on soil fertility evaluation was carried out across major agroecological zones (AEZs) of Bangladesh to know the nutrient status of soils and to relate those with soil properties like pH, organic matter, CEC, and clay content. Thirty five composite soil samples were collected from intensive crop growing sites, which covered 17 AEZs of Bangladesh. After proper processing, the samples were analyzed for texture, pH, organic carbon, CEC, exchangeable cations (K, Ca, Mg and Na), total N, available P and S following standard methods. The textural class of the soils collected from AEZ 12 and 13 appeared to be mostly clay. Clay loam soil was found in AEZ 4, 8, 9, 11, 25 and 28. Loamy soil was seen in AEZ 1 while AEZ 22, 23 and 29 were mostly sandy textured. The results revealed that 65.7% of the tested soil was acidic while 25.7% was alkaline in nature. All the tested soils showed lower pHKCl compared to pHH2O thus possessed negative charge. About 68.6% of the collected soils contained low (1.10-1.70%) level of organic matter, 25.7% soils retained it at medium level (1.71-2.40) and 5.7% soils at very low level (<1.0%). All the tested soils appeared to be deficient (< 0.12%) in nitrogen content. 68.6% soil samples had the low level of available P while only 8.6% retained it an optimum amount. About 80% of the tested soils contained low level of available S (7.9- 14.7 mg kg -1) although coastal regions soils hold higher amount of available S. High CEC (20-38 cmol kg-1) was found in clay rich soils of AEZ 10, 11, 12, and 13. Study revealed that 40% of the collected soils were very low, 31.4% were low, 8.6% each of medium and optimum, and 11.4% contained high level of exchangeable K. The calcareous soils (AEZ 10, 11, 12 and 13) contained very high level of Ca. Non calcareous soils also showed fairly good level of Ca content except AEZ 1, 3, 23 and 29. Sandy textured soils of greater Dinajpur, Rangpur, Moulvibazar showed lower level of exchangeable Mg. About 86% of the tested soils had the lower (< 2%) potassium saturation percentage (KSP), which needs K application for sustainable crop production. Estimate showed that 44% variability for CEC may be attributed by clay content and the relationship was significant (p = 0.05). Again, 50.4 and 65.6% variability in exchangeable K and Mg, respectively may be governed by clay content of the soils, while such relationship for Ca was non-significant. CEC may contribute 62.2, 92.3 and 83.9% variability for exchangeable K, Ca and Mg content in soils, respectively. The fertility status of most of the studied soils (except AEZ 10, 12, 13 and to some extent 11) appeared to be low to very low, which demand judicious management in order to achieve food security and to conserve the soil fertility.Bangladesh J. Agril. Res. 41(4): 735-757, December 2016

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