scholarly journals Nutrients Status in Arabica Coffee (Coffea Arabica L) Soils of Non-Traditional Area (NTA)

2021 ◽  
pp. 17-22
Author(s):  
S. A. Nadaf ◽  
A. R. Bora
Keyword(s):  
Organic Carbon ◽  
Soil Ph ◽  
Andhra Pradesh ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Eastern Ghats ◽  
Research Station ◽  
Arabica Coffee ◽  
Phosphorous Content ◽  
Traditional Area

Coffee growing areas in Andhra Pradesh and Orissa (non-traditional area - NTA) are characterized by undulating topography with terraced slopes having narrow valleys with scattered coffee farms across the elevation of the Eastern Ghats of Vishakhapatnam (Andhra Pradesh) and Koraput (Orissa) districts. Under this situation plant available nutrients will become non-available and the nutrients are stored in several pools as inorganic and organic forms in soil exchange complex are very much essential for coffee plants for its growth and development. Hence, a study was conducted to know the soil nutrient status of coffee growing region of NTA. A total of 693 surface soil samples were collected at depth of 22cm randomly from each coffee growing mandals of NTA and assessed the nutrient status (soil pH, OC, available P and K) at Regional Coffee Research Station, Narsipatnam. Results of the soil test results indicated that most of the Arabica coffee soils of NTA are acidic in reaction (72 %) and soil pH > 6.0 in these soils was 28 % in the tested soils. Plant available phosphorous (P) in the soil is low with 33 % soils and 46 % of the soils are medium in range. However, only 21 % of the soils tested are high in available phosphorous content in these soils. The majority of the soils of this region are high in available potassium about 54 % and 31 % of the soils are medium in range but only 15 % of the soils are low in available K status. Coffee soils of NTA are rich in organic carbon status and almost 47 %. 33 % of the tested soils are medium in range but 19 % of soils were low in organic carbon status. Soils are slightly acidic in reaction and were rich in organic carbon and available potassium status.

Anaerobic Digestate Fraction and Nutrient Stoichiometry Significantly Influence the Carbon Cycle in Grassland Soils

2020 ◽  
Author(s):  
Marta Cattin ◽  
Marc Stutter ◽  
Alfonso Lag-Brotons ◽  
Phil Wadley ◽  
Kirk T. Semple ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Soil Ph ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Microbial Biomass C ◽  
Grassland Soils ◽  
Soil Nutrient Status ◽  
Soil C ◽  
C Cycle ◽  
Soil C Cycle

<p>The application of digestate from anaerobic digestion to grassland soils is of growing interest as an agricultural practice. However, significant uncertainties surrounding the potential impacts of digestate application on processes associated with the soil microbial community remain, particularly for processes governing Carbon Use Efficiency (CUE) and the broader soil C cycle. In this research, we examined how the C:N stoichiometry of digestate and the nutrient status of soil influenced the impact of digestate application on the soil C cycle.  </p><p>Three fractions of digestate (whole [WD], solid [SD] and liquid [LD]), spanning a range of C:N, were each applied to two soils of contrasting starting nutrient status (high and low) and compared to unamended controls (Ctr). Two short-term incubations, each lasting seven days, were undertaken. In the first, applications of WD, SD and LD each achieved the same total N input to soils. In the second, digestate applications were adjusted to provide consistent total C input to soils. In each incubation, CO<sub>2</sub>-C efflux, microbial biomass C (C<sub>micro</sub>) and pH were determined.  </p><p>In each of the two incubations, the application of digestate significantly increased cumulative CO<sub>2</sub>-C efflux compared to control soils. However, the precise effect of digestate application varied between the two incubations and with both soil nutrient status and digestate fraction. Microbial biomass C was largely unchanged by the treatments in both incubations. During the first incubation, soil pH decreased substantially following each digestate treatment in both soil types. A similar pattern was observed within the second incubation in the high nutrient soil. However, in contrast, soil pH increased substantially following LD and WD application to the low nutrient soil in the second incubation. Varying CUE responses are likely to be observed following the application of digestate to agricultural soils, dependent on digestate fraction, C:N ratio of the digestate, and the initial soil nutrient status. Therefore, digestate application rates and soil management must be carefully planned in order to avoid adverse impacts of digestate application to land. </p><p> </p>

scholarly journals Fertility Status of Groundnut Growing Calcareous Vertisols of Dharwad District, Karnataka

2020 ◽  
pp. 7-19
Author(s):  
V. Manasa ◽  
N. S. Hebsur ◽  
P. L. Patil ◽  
M. Hebbara ◽  
B. N. Aravind Kumar ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Ph ◽  
Calcareous Soils ◽  
Chemical Properties ◽  
Nutrient Status ◽  
Soil Survey ◽  
Available Phosphorus ◽  
Available Nitrogen ◽  
Caco3 Content ◽  
Nutrient Index

A soil survey was carried out in different groundnut growing calcareous Vertisols of Dharwad district, Karnataka, India. One hundred surface composite soil samples were collected from five talukas (mandal) of Dharwad district and analyzed for soil chemical properties and nutrient status. The results showed that soil pH, electrical conductivity, organic carbon, free CaCO3 content ranged from 6.9-8.9, 0.15-1.79 dS m-1, 2.40-9.10 g kg-1, 5.8 -22.2 respectively across the regions. Available nitrogen, phosphorus (P2O5), potassium (K2O) and sulphur contents widely varied from 107-268, 18.5 - 56.0 and 386- 876, 14.8- 41.0 kg ha-1, respectively. On the basis of nutrient index values, groundnut growing calcareous soils of Dharwad were categorized as deficient in available nitrogen, medium in available phosphorus and high in available potassium. Most of the samples were deficient in available Fe and Zn whereas DTPA-extractable Cu and Mn were above the critical limits. A significant and positive correlation was found between organic carbon and available nitrogen (r=0.730**). However, a negative correlation was observed between Soil pH and micro nutrients while CaCO3 was negatively correlated with available iron (r=-0.31**).

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.

Influence of phosphorus and bio-fertilizers on growth and yield of cowpea [Vigna unguiculata (L.) Walp.] in acidic soil of NEH region of India

2017 ◽  
Author(s):  
M. A. Nadeem ◽  
Vikas Singh ◽  
R. K. Dubey ◽  
A. K. Pandey ◽  
Barun Singh ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Vigna Unguiculata ◽  
Dry Matter ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Growth And Yield ◽  
Soil Nutrient Status ◽  
Area Index ◽  
Available N ◽  
Pod Yield

A field experiment was carried out on cowpea (Vigna unguiculata (L.) variety Kashi Kanchan during summer season at the experimental farm, department of Vegetable Science, College of Horticulture and Forestry, Central Agricultural University, Pasighat, Arunachal Pradesh. The experiment was laid out in factorial complete randomized block design with 12 treatments i.e. three levels of phosphorus [control 0 kg(P0), 20 kg (P1) and 40 kg (P2) /ha] and four levels of bio-fertilizer [control (B0), Rhizobium10 ml/kg seed(B1), PSB 10 ml/kg seed (B2) and Rhizobium + PSB both 10 ml/kg seed (B3)] with three replications. The uniform dose of nitrogen (N) and potassium (K) @ 20 kg/ha along with 10 t/ha FYM (Farm Yard Manure) were applied to all the treatments. Result indicated that the application of P2 (40 kg P/ha) significantly increased the plant height, leaf area index, stem girth, number of nodules per plant, number of branches per plant , total dry matter, pod yield, available soil nutrient status viz., pH, N, P, K, organic carbon and NPK content in plant after harvesting. Similarly, seed inoculation with B3 (Rhizobium + PSB) significantly enhanced the growth, yield, soil nutrient status and nutrient content in plant over single inoculation of Rhizobium and PSB. Combined inoculation of seed with Rhizobium + PSB (B3) along with 40 kg P/ha (P2) significantly increased the stem girth (1.84 cm), total dry matter (13.91g/plant), green pod yield (196.37g/plant and 120.90q/ha), soil nutrient status viz., pH(6.20), available N (370.89 kg/ha), available P (38.57 kg/ha), available K (168.77 kg/ha), organic carbon (2.80%) and N, P and K (0.17%, 0.16% and 0.39%) content over rest of treatment combination.

Soil nutrient status mapping of Nagenahalli micro-watershed underEastern Dry Zone of Karnataka by Remote Sensing,Detailed Soil Survey and GIS Techniques

2016 ◽  
Author(s):  
K.S Anil Kumar ◽  
C. N. Nalina ◽  
M. Chandrakala ◽  
S. Sheela Rani ◽  
K. Sujata ◽  
...  
Keyword(s):  
Spatial Variability ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Soil Survey ◽  
Small Scale ◽  
Available Nitrogen ◽  
Gis Techniques ◽  
Dry Zone ◽  
Phosphorous Content ◽  
Crop Parameters

Soil nutrients are essential for crop growth. Spatial variability of nutrients can occur in various scales, between regions, between fields or within the field. RS and GIS techniques enables farm management based on small-scale spatial variability of soil and crop parameters in the field. The present study was carried out in Nagenahalli microwatershed, Doddaballapur taluk, Bangalore rural district with the objective to determine and map the macronutrient status of soils in the watershed using GIS technique. The NPK was analyzed and mapped using Arc GIS to quantify the level of spatial nutrients availability. Results indicated that NPK ranged from 31.36 to 376.32 kg ha-1(N), 21.29 to 390.62 kg ha-1 (P2O5) and 55.10 to 521.47 kg ha-1 (K2O) respectively in the surface soils. Nutrient map showed that the soils were poor in available nitrogen and available potassium whereas sufficient in available phosphorous content. Furthermore NPK map can be used to identify deficient or sufficient areas for efficient fertilizer management.

scholarly journals Testing the accuracy of Soil Testing Kit® Transchem

Agro-Science ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 114-116
Author(s):  
S. Idris ◽  
A. Rilwan ◽  
S.A. Abubakar ◽  
M. Adamu ◽  
Y. Sadiq ◽  
...  
Keyword(s):  
Soil Nutrients ◽  
Soil Ph ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Fertilizer Application ◽  
Soil Testing ◽  
Soil Fertility Management ◽  
Soc Estimation ◽  
Significant Difference ◽  
Test Soil

Soil testing is key to soil fertility management as it serves as a fertilizer application guide to farmers, scientists and consultants. It gives information on soil nutrient status and its supplying capacity. Laboratory (LB) procedures have been the most reliable approach for soil nutrients analyses. However, it is costly and nonpoint. Thus, the use of in–situ testing kit emerges and becomes prominent. Notwithstanding, applicability of soil testing kit must be validated by laboratory test. This work aimed to examine the reliability/suitability of Soil Testing Kit® Transchem (SK) in determining selected soil nutrients in Sahel Savannah, Nigeria. Twentyfive replicate soil samples were collected from 12°47’86’’-12°20’96’’N and 4°38’37’’-4°188’02’’E, Kebbi State Nigeria and used to test soil pH, N, P, K and soil organic carbon (SOC) by SK and LB. The SK uses colour chart and comparator for rating nutrients status qualitatively into; low, medium and high and up to very high for P. The LB results were transformed to qualitative data by corresponding the values with soil rating standardinto low, medium and high. To perform statistics, weighting was done by assigning weight load to each category; low = 1, medium = 2 and high = 3. The two methods were compared using t-test, regression and descriptive analyses. Results showed non-significant difference between the two methods for soil contents of N, P and K. However, SK poorly estimated soil pH and SOC. Correlation and regression coefficients (r = 0.915 and R2 = 0.838, respectively) indicated reliability of the SK. It is concluded that SK can be reliably used for N, P, and K but not soil pH and SOC estimation for soils in Sahel savannah of Nigeria.

scholarly journals Influence of Seed Invigouration Treatments on Nutrient Uptake and Soil Nutrient Status of Grain Cowpea [Vigna unguiculata (L.) Walp]

2021 ◽  
Author(s):  
Anju B. Raj ◽  
Sheeja K. Raj ◽  
K. Prathapan ◽  
N.V. Radhakrishnan
Keyword(s):  
Nutrient Uptake ◽  
Vigna Unguiculata ◽  
Trichoderma Viride ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Research Station ◽  
Organic Carbon Content ◽  
Micronutrient Deficiencies ◽  
Soil Nutrient Status ◽  
Available N

Background: Cowpea [Vigna unguiculata (L.) Walp] is the most widely cultivated pulse crop of Kerala. Deficiencies of micronutrients viz., Zn and B are a common problem in cowpea. Foliar nutrition is very effective to correct the micronutrient deficiencies in pulses but it is too laborious. Seed pelleting and priming are two simple cost-effective methods to overcome the micronutrient deficiencies. The present study aimed to study the effect of seed invigouration with zinc sulphate and borax and to evaluate its effect along with Trichoderma viride on nutrient uptake and soil nutrient status of grain cowpea.Methods: The experiment was conducted at Coconut Research Station, Balaramapuram, Thiruvananthapuram, Kerala. The experiment was conducted in RBD with 8 seed invigouration treatments and a control during Rabi 2018.Result: Seed invigouration treatments had significant effect on nutrient uptake and nutrient availability. Seeds primed in ZnSO4 0.05 per cent for 4h recorded the highest NPK uptake by crop, the highest soil organic carbon content, available N and Zn status. Zinc uptake by crop and available soil K status were recorded the highest in seed primed in ZnSO4 0.05 per cent for 4h + Trichoderma viride seed treatment 10 g kg-1 seed. Boron uptake by crop and available soil B and P status were recorded the highest in seeds pelleted with borax 100 mg kg-1 seed. Hence it can be concluded that seed primed in ZnSO4 with 0.05 per cent for 4 h improved the Zn availability and uptake and seed pelleting with borax 100 mg kg-1 improved the B availability and uptake of grain cowpea.

scholarly journals Nutrient Status and Root Density of Huanglongbing-Affected Trees: Consequences of Irrigation Water Bicarbonate and Soil pH Mitigation with Acidification

Agronomy ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 746 ◽  
Author(s):  
Kelly T. Morgan ◽  
James H. Graham
Keyword(s):  
Soil Ph ◽  
Irrigation Water ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Root Density ◽  
Soluble Solids ◽  
Fibrous Root ◽  
South Central ◽  
Citrus Production ◽  
Root Health

The Candidatus Liberibacter asiaticus bacterium, associated with Huanglongbing (HLB) disease of citrus trees, moves downward in the phloem and infects the roots soon after transmission by the Asian Citrus Psyllid (Diaphorina citri) vector into shoots. Before canopy symptoms appear, 30–50% of the roots are damaged. Without aggressive management to reduce abiotic and biotic stress, root loss increases to 70–80%. An extensive survey of HLB-affected groves in central and south-central Florida indicated that a greater decline in fibrous root health as well as a greater expression of HLB symptoms is observed where irrigation water is high in bicarbonates (>100 mg L−1) and soil pH is >6.5. Over three seasons of survey, acidification of irrigation water in the central and south-central citrus growing regions of Florida reduced the decline in root density associated with HLB. Irrigation water treatment with sulfuric acid and soil amendment with elemental sulfur for 36 months to establish a soil pH range from 4.0 to 7.0 increased root growth, soil nutrient availability, and the uptake of Ca, Mg, Mn, and Zn in response to a gradual reduction in soil pH in young and mature Valencia orange groves on Swingle citrumelo rootstock. The reduction in soil pH increased yield and soluble solids in fruit and so would improve citrus production.

Sign in / Sign up

Export Citation Format

Share Document