scholarly journals Changes in soil fertility status of maize-wheat system due to long-term use of chemical fertilizers and amendments in an alfisol

2012 ◽  
Vol 58 (No. 12) ◽  
pp. 529-533 ◽  
Author(s):  
G. Verma ◽  
R.P. Sharma ◽  
S.P. Sharma ◽  
S.K. Subehia ◽  
S. Shambhavi
Keyword(s):  
Organic Carbon ◽  
Soil Fertility ◽  
Farmyard Manure ◽  
Continuous Cultivation ◽  
Nutrient Status ◽  
Crop Productivity ◽  
Western Himalayas ◽  
Available N ◽  
The Status ◽  
Soil Fertility Status

The present study was undertaken to quantify changes in the status of soil nutrients, their depletion and build-up after continuous long intensive cropping for last 36 years in a permanent manorial trial which has been in progress since 1972 in an alfisol of western Himalayas. The rotation was maize-wheat which included various combinations of N, P, K, Zn and FYM (farmyard manure). Continuous cultivation influenced pH, OC (organic carbon), available N (nitrogen), P (phosphorus) and K (potassium). An increase in the status of organic carbon was observed in 100% NPK + FYM treatments for more than three decades from initial value of 7.9 to 12.0 g/kg. The use of either FYM or lime alongwith 100% NPK sustained crop productivity or improved nutrient status. However, imbalanced use of nutrients i.e. NP or N alone is adversely affecting the fertility of soil by aggravating the problem of soil acidity. Application of S free P fertilizer DAP (diammonium phosphate) drastically reduced the yield of both the crops. Thus, continuous use of balanced fertilizers is necessary for sustaining soil fertility and productivity of crops.  

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.

Changes in soil fertility status as influenced by continuous cropping and fertilizer application

1984 ◽  
Vol 102 (1) ◽  
pp. 215-218 ◽  
Author(s):  
K. N. Sharma ◽  
Bijay Singh ◽  
D. S. Rana ◽  
M. L. Kapur ◽  
J. S. Sodhi
Keyword(s):  
Organic Carbon ◽  
Soil Fertility ◽  
Farmyard Manure ◽  
Fertilizer Application ◽  
Available P ◽  
Organic Carbon Content ◽  
Continuous Cropping ◽  
Fertility Status ◽  
Combined Application ◽  
Soil Fertility Status

SummaryChanges in soil fertility status brought about by the application of P and K fertilizers and farmyard manure (FYM) to a fixed wheat-maize rotation for 10 years in a calcic ustochrept are reported. The treatments comprised three rates of P (0, 30 and 60 kg P2O5/ha), two rates of K (0 and 30 kg K2O/ha) and two rates of FYM (0 and 15 t/ha) applied to maize or wheat alone or to both the crops. Organic carbon and available P and K contents of the soil increased significantly with the addition of FYM. P application at 60 kg P2O5/ha nearly maintained the original level of available P even after 10 years of continuous cropping. However, a considerable and highly significant increase in available P was obtained with the combined application of P and FYM. Available K status of the soil remained more or less unaffected by K application. Organic carbon content, and available P and K contents were significantly higher in the plots that received fertilizers and manure for both the crops than in those where the application was to maize or wheat alone.

scholarly journals Soil Fertility as Influenced by K Enriched Azolla

2019 ◽  
pp. 1-8
Author(s):  
S. Muruganayaki ◽  
A. Jayachitra ◽  
S. Jothimani
Keyword(s):  
Organic Carbon ◽  
Moisture Content ◽  
Soil Fertility ◽  
Nutrient Status ◽  
Organic Carbon Content ◽  
N Content ◽  
Moisture Condition ◽  
Available N ◽  
Main Plot ◽  
K Concentration

Biological Nitrogen Fixation (BNF) is a major source of fixed N for plant life and to sustain production and productivity of agricultural crops. An incubation experiment was conducted by growing Azollae filiculoides with 2 agriculturally important potassic fertilizers (Potassium Chloride, Potassium shulphate) as main plot in seven concentrations (0, 5, 10, 20, 30, 40 and 50 ppm of K) as sub-plots laid down in split plot design replicated  three times. The collected Azolla was incorporated with soil  at 10 t/ha and maintained at two moisture condition such as 60 and 100 percent and assessed soil fertility by estimating various available plant nutrients and organic carbon status..The mean organic carbon content of the soil was 0.657 and 0.525% at 60 and 100% moisture contents respectively. The available N content ranged from 216.2 to 327.3 and 191.1 to 285.3 kg/ha from 0 to 40 ppm of K concentration at 60 and 100% moisture respectively because the Azolla had a high N content which released into the soil after decomposition. Azolla also contributed to the supply of phosphorus, potassium, sulfur, zinc, iron and molybdenum in sufficient amounts in addition to other micronutrients besides addition of nitrogen. Among the various concentration, 40 and 50 ppm K were significantly maintained higher and equal soil available P status of 75.17 and 77.33 kg / ha respectively. The fertilizer, K2SO4 with 30, 40 and 50 ppm at 60% moisture content and 40 and 50 ppm of K2SO4 and 40 ppm of KCl produced statistically higher and equal available K at 100% moisture. The soil biological health, mineralization and consequent increase in nutrient status by the application of K enriched Azolla was more under 60% soil moisture content than fully saturated soil.

scholarly journals Long-term effect of inorganic fertilizers and amendments on productivity and root dynamics under maize-wheat intensive cropping in an acid Alfisol

2017 ◽  
Vol 9 (4) ◽  
pp. 2004-2012 ◽  
Author(s):  
Shweta Shambhavi ◽  
Rakesh Kumar ◽  
S. P. Sharma ◽  
Gayatri Verma ◽  
R. P. Sharma ◽  
...  
Keyword(s):  
Root Length Density ◽  
Mass Density ◽  
Farmyard Manure ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Crop Productivity ◽  
Root Surface Area ◽  
Root Dynamics ◽  
Inorganic Fertilizers ◽  
Available N

Study on the soil nutrient status and crop productivity under continuous use of inorganic fertilizers and amendments in an acid Alfisol after 36 years (1972-73 to 2008-09) was carried out at Palampur, HP. Results showed that application of Recommended Dose of Fertilizer (120:60:40 kg/ha to maize and 120:60:30 kg/ha to wheat) with 10 t farmyard manure/ha applied once a year for 36 years resulted in 786 and 515 per cent increase in maize and wheat yields, respectively over control. Soil acidity rose from 5.8 to 4.58 with the application of fertilizers over 36 years. Conjoint use of FYM with 100 per cent NPK substantially improved the Organic Carbon status by 4.95 g/kg as well as available P, K and S by 154.1, 14.5 and 12.5 kg/ha, respectively in soil over its initial values, thereby indicating significant contribution towards sustaining the soil health. On the other hand, there was a drastic decline in the available N status of soil in all the treatments as compared to the initial value. The various root parameters viz., root mass density (4.08 kg m-3), root volume density (10.84 m3 m-3x10-3), root length density (2.60 m m-3 x 10-4), root surface area (204.12 m2 x 10-4) and root cation exchange capacity (8.37 c mol (p+) kg-1) were found to be highest in the plots with the application of 100% NPK + FYM. Thus, balanced use of fertilizers continuously either alone or in combination with amendments is necessary for sustaining soil fertility and productivity of crops.

Soil Fertility Assessment of Sainamaina Municipality, Rupandehi, Nepal

2020 ◽  
Vol 7 ◽  
pp. 43-53
Author(s):  
Bishal Gnyawali ◽  
Umesh Kumar Mandal ◽  
Ishwor Aryal
Keyword(s):  
Soil Fertility ◽  
Soil Ph ◽  
Management Practices ◽  
Soil Test ◽  
Fertility Management ◽  
Fertility Index ◽  
Fertility Status ◽  
Sample Data ◽  
The Status ◽  
Soil Fertility Status

Soil fertility assessment is a very fundamental task for farmers and agricultural planners to adopt appropriate fertility management practices, to recommend applying lacking fertilizers, to make fertility-based agricultural plans,s and to produce a large number of crops in their land. This study assesses the soil fertility status of Sainamaina Municipality, ward no. 5-9, Rupandehi district based on soil sample data collected from the field. Soil test based fertility assessment, calculation of overall fertility of area using fertility index, and preparation of soil fertility map is carried out. As soil fertility, the status of total nitrogen (TN), phosphorus (P2 O5), potassium (K), organic matter (OM), and soil pH are measured. As a result, the status of TN, (K2 O), and OM is found low, the status of (P2 O5 ) is found high and soil pH is found in range of very strongly acidic to slightly alkaline.

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 Integrated Plant Nutrition System in Cotton – An Approach Towards Climate Change Mitigation

2021 ◽  
Vol 23 (10) ◽  
pp. 413-418
Author(s):  
S. Praveena Katharine ◽  
◽  
M. Suguna Devakumari ◽  
S. Sumaiya Parveen ◽  
◽  
...  
Keyword(s):  
Climate Change ◽  
Soil Fertility ◽  
Plant Nutrition ◽  
Crop Productivity ◽  
Nitrous Oxide Emissions ◽  
Optimum Level ◽  
Cotton Production ◽  
Nitrogen Levels ◽  
Improvement Programme ◽  
Soil Fertility Status

Agriculture is both affected by climate change but also contributes to it. As a sector, agriculture must therefore both adapt to changes and offers options for mitigation ie reducing greenhouse gas emissions and store carbon. The objective of the study is to explore the optimum level of plant nutrient for sustaining the desired crop productivity in hybrid cotton through optimization of benefit from all possible resources of plant nutrients in an integrated manner and to mitigate the green house gas emission through the adoption of Integrated Plant Nutrition System. The experiment was carried out in three locations with different soil fertility status with special emphasis to nitrogen levels in the soils. The fertilizer doses were fixed based on the soil test values and fertility grouping / indexing by International soil fertility evaluation and improvement programme. As part of organics, FYM was applied at two different levels, and the fertilizers were reduced accordingly. The results proved that application of organic manure @ 12.5 t ha-1 along with the recommended doses of nutrients proved superior in seed cotton production as well reduced nitrous oxide emissions.

scholarly journals Soil Nutritional Status of Tea Plantations in Plains of Sub Himalayan West Bengal, India

2020 ◽  
Vol 8 (3) ◽  
pp. 239-246
Author(s):  
Mainak Mukherjee ◽  
Sourav Chakraborty ◽  
Sahadeb Sarkar ◽  
Sumedha Saha ◽  
Soumya Majumder ◽  
...  
Keyword(s):  
Organic Carbon ◽  
West Bengal ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Crop Productivity ◽  
Soil Samples ◽  
Garden Soil ◽  
High Potassium ◽  
Tea Plantations ◽  
Almost All

Tea is the most consumed beverages after water. In Terai and Dooars region of sub Himalayan West Bengal, India, tea plantations are around 150 years. Exploitation of tea garden soil over centuries has led to decline in soil fertility and crop productivity after all initiatives of external inputs. As nutrients play a crucial role in quality and quantity of manufactured tea, the present initiative has been designed to quantify the soil nutrient status of tea growing Terai and Dooars region. 79.62% (Terai) and 84.72% (Dooars) of the soil samples were found to have normal pH. 47.21% (Terai) and 49.3% (Dooars) of soil samples was found to have normal organic carbon. 12.03% and 20.82% of soil from Terai and Dooars showed low total nitrogen. Both the organic carbon and nitrogen in soil are positively correlated. Phosphorus (as P2O5) content of soil is extremely site and depth specific. Almost all samples of the study area showed high potassium (as K2O) content. Monoculture, change in rainfall pattern and inorganic additives have contributed enormous stress to soil but despite of all these odds the overall nutritional richness of these tea growing regions seems to be satisfactory.

scholarly journals Effect of altitude and seabuckthorn (Hippophae rhamnoides) on soil properties in dry temperate region of Himachal Pradesh

2017 ◽  
Vol 9 (4) ◽  
pp. 2228-2234 ◽  
Author(s):  
Abhay Sharma ◽  
Virendra Singh
Keyword(s):  
Organic Carbon ◽  
Soil Fertility ◽  
Soil Properties ◽  
Soil Nutrients ◽  
Soil Depth ◽  
Nutrient Status ◽  
Himachal Pradesh ◽  
Hippophae Rhamnoides ◽  
Land Use Pattern ◽  
Hippophaë Rhamnoides

Seabuckthorn (Hippophae rhamnoides) is an ecologically and economically important plant species used for the enhancement of soil fertility, prevention of soil erosion and production of food and medicinal products in mountain ecosystem. Altitude and landuse are the major factors which conditions the nutrient status of soil. In the study six different altitudes (3390 m, 3520 m, 3560 m, 3615 m, 3790 m and 4040 m) above sea level in dry temper-ate region of Himachal Pradesh and three land use pattern viz., (seabuckthorn forest, willow forest and wasteland) were selected for the study and their impact was investigated on soil fertility. Soil properties such (pH, organic car-bon, available macronutrients N, P, K, S and exchangeable cations Ca, Mg) were determined following the standard procedures. The values of soil available nutrients under seabuckthorn varied as pH (8.2 to 7.8), organic carbon (1.05 to 2.35 per cent) N (125 to 205 kg ha-1), P (15 to 31 kg ha-1), K (94 to 284 kg ha-1), S (28 to 53 kg ha-1), ex-changeable Ca (8.56 to 10.20 cmol (p+) kg-1) and Mg (2.3 to 3.6 cmol (p+) kg-1), respectively. The soil nutrients in seabuckthorn forest were found much higher than willow forest and wasteland, especially organic carbon and availa-ble N contents. Soil nutrients were found to increase with increasing altitude and decrease with increasing soil depth. The results concluded that Hippophae rhamnoides had significant effects (p < 0.05) on soil nutrient conditions. Hence our study indicates that seabuckthorn has a big potential for soil conservation, ecological sustainability and restoration of Himalayan ecosystem.

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