scholarly journals Assessment of Soil Fertility Status Using Nutrient Index Approach in Cassava Farms of Rewa Province, Fiji

2021 ◽  
Author(s):  
H.K. Sachan ◽  
Deeksha Krishna
Keyword(s):  
Organic Carbon ◽  
Soil Fertility ◽  
Management Strategies ◽  
Available Phosphorus ◽  
Fertility Status ◽  
Index Approach ◽  
Nutrient Index ◽  
Calcium And Magnesium ◽  
Soil Fertility Status ◽  
Index Value

Background: Nutrient index methods and fertility indicators can be used to determine the fertility status of soils. The information can be used to develop soil management strategies for farmers. Methods: The research was conducted in the Rewa district of Fiji, with an aim to assess soil fertility status using the nutrient index approach. A total of 57 cassava-growing farms were selected from three sub-districts of Rewa province for the present investigation and collected soil samples were analyzed in accordance with standard procedures for evaluating chemical parameters and the status of available nutrients in the soil. Result: The study discovered that the soils of farms are acidic in reaction, have low levels of organic carbon, low to moderate levels of major primary nutrients, however, the soils had a high content of calcium and magnesium. The soil nutrient index value calculated of soil organic carbon and available phosphorus were recorded as low with 1.48 and 1.40 respectively. The NIV for nitrogen and potassium content was medium category values of 1.91 and 1.95, respectively. The nutrient index value calculated for exchangeable calcium and magnesium content was recorded as high with 2.75 and 2.35 values respectively.

scholarly journals Assessment of Soil Fertility Status Using Nutrient Index Approach of Ovu Sub-Clan, Delta State, Nigeria

2020 ◽  
Author(s):  
S.A. Ojobor ◽  
C.N. Egbuchua ◽  
R.A. Onoriasakpovwa
Keyword(s):  
Organic Carbon ◽  
Soil Fertility ◽  
Total Nitrogen ◽  
Soil Ph ◽  
Oil Palm ◽  
Phosphorus Content ◽  
Available Phosphorus ◽  
Fertility Status ◽  
Nutrient Index ◽  
Soil Fertility Status

Background: Amendment of soil fertility through regular nutrient assessment is a necessary intervention for sustainable crop production. Ovu, is a sub-clan in Delta State, Nigeria which comprised of: Ovu-Inland, Okoemaka, Ekpan, Urhodo, Okoroke and Oviorie that are mostly farmers without the knowledge of their soil fertility. The study investigated soil fertility status of Ovu Sub-Clan. Methods: Cassava, oil palm and plantain farms were randomly selected in the six community and 118 representative soil samples were taken. Soil pH, organic carbon, total nitrogen, available phosphorus content of soil and exchangeable bases were measured. Data were analyzed with descriptive statistics and Parker’s nutrient index was used to compare the fertility level. Result: The cassava, oil palm and plantain farms were slightly acidic mean values of 6.4±0.38, 6.5±0.31 and 6.4±0.30, respectively indicating slight acidity. Organic carbon was low to high while total nitrogen was high except at Okoemaka that was moderate (0.19±0.04%). Available phosphorus content was low to medium while exchangeable potassium and calcium were medium to high, exchangeable magnesium was low to medium. Nutrient index showed that soil pH was moderate and while total nitrogen was high. 

scholarly journals Soil fertility evaluation of rice soils of Lumbajong block of Karbi Anglong district under hill zone of Assam through nutrient indexing

2020 ◽  
Vol 15 (2) ◽  
pp. 81-85
Author(s):  
Nilim Kalita ◽  
Subal Maibangsa
Keyword(s):  
Organic Carbon ◽  
Soil Fertility ◽  
Available P ◽  
Chemical Fertilizers ◽  
Available Nitrogen ◽  
Rice Soils ◽  
Available N ◽  
Fertility Status ◽  
Nutrient Index ◽  
Soil Fertility Status

The Lumbajong block of Karbi Anglong district of Assam is characterized by undulating topography comprising of hillocks and lowland paddy fields. Cultivation of rice in traditional ways for years without adequate and balanced use of chemical fertilizers and with little or no use of organic manure have caused severe fertility deterioration resulting in stagnating or even declining productivity of the paddy field soils. Spatial distributions for organic carbon, available N, available P and available K were examined in the soil samples of selected rice fields in 102 different locations covering six villages in the block to evaluate the fertility status of the block. The study revealed that there is much variation in soil fertility status of soils developed on various land forms in the area as the soils were having low to high in organic carbon (0.42 to1.12 %), low to medium in available nitrogen (175.62 to 376 kg/ha) content; low in available P (3.86 to 28.29 kg/ha) and low to high in available K (71.68 – 439.04 kg/ha) contents. The soils of Lumbajong block were characterized as medium-medium-low-medium (MMLM) category based on the nutrient index calculated with respect to organic carbon, available N, available P and available K.

scholarly journals Soil Fertility Status and Nutrient Index in Different Tasar Silkworm Host Plants Growing Ecosystems of Purulia District, West Bengal, India

2020 ◽  
pp. 28-35
Author(s):  
T. Pandiaraj ◽  
Susmita Das ◽  
Manjappa . ◽  
Alok Sahay
Keyword(s):  
Soil Fertility ◽  
Host Plants ◽  
West Bengal ◽  
Soil Reaction ◽  
Available Phosphorus ◽  
Available Nitrogen ◽  
Fertility Status ◽  
Nutrient Index ◽  
Purulia District ◽  
Soil Fertility Status

This study was conducted to evaluate soil fertility status in the fourteen major tasar sericulture adopting villages in Purulia District, West Bengal. For this, a total of 160 surface soil samples (0-30 cm) were collected from dominant tasar sericulture villages along with the details regarding farmer’s name, soil type, host plants details, etc. The collected samples were air dried, sieved and analysed for various soil fertility parameters such as pH, EC, organic carbon, macro and micronutrients. The data on various parameters were categorized into low, medium and high classes based on soil fertility ratings and nutrient index was calculated. Results revealed that soil reaction in the study area varied from strongly acidic to moderately acidic with saline free soil. The available nitrogen was low level in all the tasar host plant growing regions. In all the study regions, medium range of available phosphorus, potassium and sulphur was observed. All the micronutrients were high in the study villages. Regard NIV, all the macronutrients except nitrogen showed medium nutrient index in most places. Fertility rate of available micro nutrients were high index in all the tasar growing villages.

scholarly journals Nutrient uptake and soil fertility status after harvest of Bt cotton as influenced by graded levels of NPK fertilizers in Alfisol

2017 ◽  
Vol 9 (4) ◽  
pp. 2315-2326
Author(s):  
T. V. Jyothi ◽  
N. S. Hebsur
Keyword(s):  
Soil Fertility ◽  
Field Studies ◽  
Available Phosphorus ◽  
Growth Stages ◽  
Bt Cotton ◽  
Available Nitrogen ◽  
Npk Fertilizers ◽  
Fertility Status ◽  
Soil Fertility Status ◽  
Cu Uptake

Field studies were conducted at farmer’s fields in Jodalli (Kalghatgi taluk) and Pale (Hubballi taluk) villages in 2012-13 and 2013-14, respectively to investigate the effect of NPK fertilizers on uptake of nutrients by Bt cotton and soil fertility status at harvest in Alfisol. Among the different treatment combinations, the application of 150:50:75 kg N:P2O5:K2O ha-1 (N3P1K2) recorded significantly (P=0.05) higher nitrogen (132.63 kg ha-1), phosphorus (31.26 kg ha-1) and potassium (128.94 kg ha-1) uptake by cotton. The interaction effect with respect to total micronutrients (Zn, Fe, Mn and Cu) uptake remained non significant at all the growth stages. Graded levels of fertilizers failed to exert significant impact on pH and electrical conductivity, soil organic carbon and available micronutrients during both the years of experimentation. The application of 100:50:50 kgN:P2O5:K2O ha-1 (N1P1K1) recorded significantly (P=0.05) highest available nitrogen (150.39 kg ha-1), available phosphorus (37.98 kg ha-1) and available potassium (230.99 kg ha-1) compared to rest of the treatments. The lowest available nitrogen (134.92 kg ha-1), available phosphorus (31.65 kg ha-1) and available potassium (217.63 kg ha-1) were recorded in treatment receiving 150:50:75 kg N:P2O5:K2O ha-1 (N3P1K2).

scholarly journals Influence of varied crop residues and green biomass composts to rabi sorghum growing soils on uptake of major nutrients, microbial biomass and soil fertility status

2018 ◽  
Vol 10 (1) ◽  
pp. 185-189
Author(s):  
Ashwini Ambadi ◽  
D. Krishnamurty ◽  
Sathyanaran Rao ◽  
B. K. Desai ◽  
M.V. Ravi ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Organic Carbon ◽  
Soil Fertility ◽  
Crop Residues ◽  
C:N Ratio ◽  
Fertility Status ◽  
Combined Application ◽  
Cotton Stalks ◽  
Major Nutrients ◽  
Soil Fertility Status

A field experiment was conducted on vertisols (pH of 7.56 with organic carbon content of 0.55%) at Re- search Institute on Organic Farming, University of Agricultural Sciences, Raichur coming under northern Karnataka during rabi season of 2015-16 to study the Influence of varied crop residues and green biomass composts to rabi sorghum growing soils on uptake of major nutrients, organic carbon and soil fertility status. In general application of Cotton stalks, Redgram stalks, Glyricidia, combination of cotton and redgram stalks composts, FYM and combina- tion of organic and inorganic fertilizers helped to buildup soil nutrients with respect to organic carbon, available nitro- gen and phosphorus. Significantly higher nitrogen (227.3 kg ha-1), phosphorous (75.7 kg ha-1) and potassium (141.7 kg ha-1) uptake by rabi sorghum was recorded with combined application of recommended FYM (3 t ha-1) and NP fertilizers (50:25 kg N, P2O5 ha-1) (T14) followed by Cotton stalks +Redgram stalks + Glyricidia sp. with C:N ratio of 30:1 compost @ 50 kg N equivalent (T12: 222.0, 74.0 and 132.3 kg ha-1). The least uptake was recorded with abso- lute control (T15: 127.0, 42.0 and 71.7 kg ha-1). Similar trend was observed with organic carbon, available nitrogen and phosphorus. Combined application of recommended FYM (3 t ha-1) and NP fertilizers (50:25 kg N, P2O5 ha-1) followed by Cotton stalks +Redgram stalks + Glyricidia sp. with C:N ratio of 30:1 compost @ 50 kg N equivalent at the time of sowing recorded higher major nutrients uptake, microbial biomass and soil fertility status.

scholarly journals Soil fertility status of agricultural land in mid-hill of Gorkha District, Nepal

2018 ◽  
Vol 6 ◽  
pp. 9-16
Author(s):  
Ashok Kumar Shrestha ◽  
Binod Dawadi ◽  
Sabitri Shrestha ◽  
Kishor Kumar Maharjan ◽  
Rabin Malla
Keyword(s):  
Soil Fertility ◽  
Environmental Science ◽  
Agricultural Land ◽  
Organic Fertilizer ◽  
Growth And Yield ◽  
Available Phosphorus ◽  
Soil Fertility Management ◽  
Fertility Status ◽  
Significant Difference ◽  
Soil Fertility Status

Soil fertility management in agricultural land is challenging in hilly areas of Nepal. The study assesses the soil fertility status of Bari (upland) and Khet (lowland) agriculture land in Mid-hill of Gorkha district. Altogether 30 samples were collected from soil surface (0 to 20 cm) by using hand shovel in January, 2017. The soil fertility parameters like pH, organic matter (OM), total nitrogen (TN), available phosphorus (P) and available potassium (K) were analyzed using standard methods in the laboratory of Central Department of Environmental Science, Tribhuvan University. Results revealed that an average pH in upland (6.62) was higher than the lowland (5.94). Similarly, OM (3.95%) and K (36.49 kgha-1) were relatively high in upland. In addition, pH, OM and available K were significantly varied at p<0.05 in upland and lowland soils, however, there is no significant difference in TN and available P. In addition, soil nutrient index showed that status of available K in both types of land is low, while OM and TN are medium soil quality in upland and lowland soil. The use of organic fertilizer and improved farming system can maintain and sustain soil fertility for crop growth and yield. Understanding distribution of soil nutrients in the study area might be useful for planners to make effective soil fertilizer management strategies.

scholarly journals Assessment of soil fertility status of Agriculture Research Station, Belachapi, Dhanusha, Nepal

2016 ◽  
Vol 2 (1) ◽  
pp. 43-57 ◽  
Author(s):  
Dinesh Khadka ◽  
Sushil Lamichhane ◽  
Shahabuddin Khan ◽  
Sushila Joshi ◽  
Buddhi Bahadur Pant
Keyword(s):  
Organic Matter ◽  
Soil Fertility ◽  
Research Strategy ◽  
Soil Samples ◽  
Soil Sampling ◽  
Future Research ◽  
Available Phosphorus ◽  
Research Station ◽  
Fertility Status ◽  
Soil Fertility Status

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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