scholarly journals Nutrient Status of Sugarcane Growing Soils of Nizamabad District of Telangana State

2020 ◽  
pp. 1-9
Author(s):  
J. Kamalakar ◽  
T. Prabhakar Reddy ◽  
K. Pavan Chandra Reddy ◽  
D. Vijaya Lakshmi ◽  
Firdoz Sahana ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Land Use Planning ◽  
Surface Soil ◽  
Nutrient Status ◽  
Soil Survey ◽  
Soil Reaction ◽  
Organic Carbon Content ◽  
Available N ◽  
Subsurface Soil ◽  
Telangana State

Sugarcane is a commercial crop predominantly grown in Nizamabad district. Investigating the fertility status of sugarcane growing soil is required to underpin future land use planning. A field soil survey was carried out in major sugar cane growing soils (5 mandals/taluk) of Nizamabad district of Telangana state. A total number of 94 samples were collected from 0-15 cm (surface soil) and 15-30 cm (subsurface soil) depths using global positioning system (GPS) co-ordinates. Collected soil samples were chemically analyzed for the important soil attributes viz., pH, electrical conductivity (EC), organic carbon (OC), nitrogen (N), phosphorus (P), potassium (K), sulphur (S), iron (Fe), zinc (Zn), manganese (Mn) and copper (Cu) using standard analytical procedures. Correlation analysis was performed to study the relationship between the different soil properties. The soil reaction (pH) showed wide variation at surface and subsurface depths showing that soils are slightly acidic to strongly alkaline in nature. Organic carbon content varied from low to high (0.25 to 1.41% and 0.22 to 0.75% at 0-15 and 15-30 cm depths respectively). Whereas available N content were low to high (136 to 310 kg ha-1 and 23 to 166 kg ha-1 at 0-15 cm and 15-30 cm depths respectively), medium to high in available P (12.05 to 103.6 kg ha-1 and 3.6 to 27.90 kg ha-1 at 0-15 cm and 15-30 cm depths respectively), high in available K (242 to 715 kg ha-1 and 108 to 466 kg ha-1 at 0-15 cm and 15-30 cm depths respectively). Further, the soils are deficient to sufficient in available S and Zn, Fe, Mn and Cu were sufficient. Nitrogen was positively correlated with the organic carbon (r=0.883, p<0.05) at surface soil and negatively related at subsurface soil. All the major nutrients viz., N, P, and K correlated positively with OC (r=0.883*, 0.768, and 0.267 respectively) at surface soil. Conclusively, the results of the study area showed in all the sugarcane growing mandals of Nizamabad district necessitating the need for refinement of fertilizer scheduling to sugarcane crop yield and productivity.

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.

Charge characteristics of soil in a lowland tropical moist forest in Panama in response to dry-season irrigation

Soil Research ◽  
2002 ◽  
Vol 40 (2) ◽  
pp. 269 ◽  
Author(s):  
Joseph B. Yavitt ◽  
S. Joseph Wright
Keyword(s):  
Surface Charge ◽  
Surface Soil ◽  
Soil Nutrient ◽  
Soil Surface ◽  
Nutrient Status ◽  
Dry Season ◽  
Soil Nutrient Status ◽  
Variable Charge ◽  
Subsurface Soil ◽  
Moist Forest

Although the hot, moist tropics in the Republic of Panama receive more than 2000 mm of rain per year, soils dry considerably during the 4-month dry season. We examined the effect of seasonal drought by irrigating two 2.25-ha plots of lowland tropical moist forest on Barro Colorado Island (BCI) for 5 consecutive dry seasons. Irrigation decreased soil permeability and improved soil nutrient status, which prompted this study of soil charge characteristics in the irrigated and control plots. Soil was an Alfisol, and thus it was not clear a prioriwhether variable-charge or permanent-charge components dominated. Surface soil (0–15 cm) had a pH(H2O) of 5.5 and pH(KCl) of 4.8. Subsurface soil (30–45 cm) had a pH(H2O) of 4.8 and a pH(KCl) of 3.5. The point of zero salt effect (PZSE), measured by titration, varied from 3.7 to 5.0 in surface soil and from 3.5 to 4.2 in subsurface soil. Variable charge of surface soil was 2.6 cmolc&sol;kg.pH unit after the dry season in April versus 3.2 cmolc&sol;kg.pH unit after the wet season in December in both control and dry-season irrigated plots, reflecting seasonal differences in pH and PZSE. The point of zero net charge (PZNC), measured by ion retention, was at pH &lt;2.0, indicating that permanent-charge components dominated the soil surface charge. Five years of dry-season irrigation resulted in pH(H2O) increasing by 0.6 units and pH(KCl) increasing by 0.2 units. As well, irrigation increased the amount of permanent charge and cation retention, leading to less sorption of phosphate and sulfate. The results have important ecological implications, showing mechanistically how wetter conditions affected soil surface charge leading to improved soil nutrient status. permanent charge, soil pH, tropical forest soil, variable charge, water regime.

Sorption of Metribuzin and Metolachlor in Alaskan Subarctic Agricultural Soils

Weed Science ◽  
1992 ◽  
Vol 40 (1) ◽  
pp. 155-160 ◽  
Author(s):  
Jeff S. Graham ◽  
Jeffery S. Conn
Keyword(s):  
Organic Carbon ◽  
Carbon Content ◽  
Soil Type ◽  
Surface Soil ◽  
Agricultural Soils ◽  
Freundlich Isotherm ◽  
Organic Carbon Content ◽  
Surface Soils ◽  
Adsorption And Desorption ◽  
Equilibration Temperature

Adsorption and desorption of metribuzin and metolachlor were studied for 0- to 15- and 30- to 45-cm soil depths and at 5 and 28 C temperatures for two subarctic Alaskan agricultural soils. Surface soils had five to eight times the organic carbon content of deeper soils and had lower Freundlich isotherm slopes (1/n) for both herbicides. Surface soil Freundlich coefficients (Kf) were affected by both soil type and equilibration temperature, with soil type accounting for greater than 80% of the variation in Kf. Surface soil mean Kfvalues ranged from 1.5 to 2.4 for metribuzin and 4.4 to 9.2 for metolachlor. For soils from the 30- to 45-cm depth, neither soil type nor temperature affected Kf. Isotherm slopes for desorption were less than adsorption, indicating hysteresis. Regressions between desorption Kfand maximum herbicide adsorbed prior to desorption were highly significant with coefficients of determination (r2) between 0.50 and 0.99.

Response of labile organic carbon content in surface soil aggregates to short-term nitrogen addition in artificial Pinus tabulaeformis forests

2017 ◽  
Vol 37 (20) ◽  
Author(s):  
姚旭 YAO Xu ◽  
景航 JING Hang ◽  
梁楚涛 LIANG Chutao ◽  
谷利茶 GU Licha ◽  
王国梁 WANG Guoliang ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Carbon Content ◽  
Surface Soil ◽  
Soil Aggregates ◽  
Nitrogen Addition ◽  
Pinus Tabulaeformis ◽  
Organic Carbon Content ◽  
Short Term ◽  
Labile Organic Carbon

scholarly journals Characterization and Classification of Soils of Harve-1 Microwatershed of Chamarajanagar District, Karnataka, India

2020 ◽  
pp. 43-54
Author(s):  
Rajendra Hegde ◽  
M. B. Mahendra Kumar ◽  
K. V. Niranjana ◽  
K. V. Seema ◽  
B. A. Dhanorkar
Keyword(s):  
Soil Samples ◽  
Soil Survey ◽  
Soil Reaction ◽  
Soil Profiles ◽  
National Bureau ◽  
Organic Carbon Content ◽  
Clay Loam ◽  
Soil Series ◽  
Sandy Clay Loam ◽  
Sandy Clay

Aims: The detailed survey of the microwatershed was carried out by using digitized cadastral map as a base. The objective of the investigation was undertaken to characterize and classify the soils of Harve-1 microwatershed of Chamarajanagar district, Karnataka. Place and Duration of Study: soil survey was done and soil samples were collected from Harve-1 microwatershed of Chamarajanagar district in the year 2016. The laboratory characterization and soil classification work was done at National Bureau of soil survey and land use planning, Regional centre Hebbal, Bangalore, Karnataka. Methodology: Using Cartosat-1 and LISS-IV merged satellite data at the scale of 1:7920 were used in conjunction with the cadastral map as a base. Soil profiles were exposed and location of soil profiles was recorded using GPS and studied from each landform for describing morphological characteristic as per the guidelines given in USDA soil survey manual (Soil Survey Staff 2014). Based on the soil-site characteristics, ten soil series were identified using the method employed by Reddy (2006). Horizon wise soil samples were collected, processed and analysed for various properties by adopting standard procedure. Results: The study showed that, the soils were moderately shallow to moderately deep in depth. The colour of the soils varied from dark red to dark reddish brown. Texture of the soil varied from sandy loam to sandy clay loam in surface and sandy clay loam to sandy clay in subsurface. The structure was weak medium sub-angular blocky to moderate medium sub-angular blocky throughout the profile in all series. The consistency of majority of the soils were friable, slightly sticky and slightly plastic in surface and friable, moderately sticky and moderately plastic in subsurface. Soil reaction varied from slightly acidic to alkaline (5.70 to 8.18) in nature. Organic carbon content of the soils was low to high (0.20 to 1.24 per cent). Calcium and magnesium are dominant exchangeable cations followed by sodium and potassium. The CEC of the soils ranged from 3.17 to 25.76 cmol (p+) kg-1. Major proportion of soil series in the microwatershed belonged to the order of Alfisols (Paralitic Rhodustalfs, Typic Rhodustalfs, Typic Haplustalfs and Rhodic Paleustalfs) except Honnenahalli (HNH) series belong to the order of Inceptisols (Typic Haplustepts). Conclusion: The soils of the microwatershed were comes under the order of alfisols and inceptisols. This generated information can help the researchers, farmers and planners to manage the natural resources for future planning and also to achieve sustainable productivity.

scholarly journals The accumulation of Mn and Cu in the morphological parts of Solidago canadensis under different soil conditions

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e8175 ◽  
Author(s):  
Aleksandra Bielecka ◽  
Elżbieta Królak
Keyword(s):  
Organic Carbon ◽  
Carbon Content ◽  
Soil Ph ◽  
Invasive Plant ◽  
Soil Condition ◽  
Soil Conditions ◽  
Soil Reaction ◽  
Organic Carbon Content ◽  
Solidago Canadensis ◽  
Alkaline Soils

Solidago canadensis L. is a drought-tolerant, invasive plant, characterized by a large biomass of underground and aboveground parts. The aim of this study was to assess the accumulation of manganese (Mn) and copper (Cu) in the roots and rhizomes and the stems, leaves, and inflorescence parts in S. canadensis from two locations that differed in soil pH, organic carbon, and Mn and Cu concentrations. The concentration of the metals in the samples was determined by the AAS method; the pH was determined by the potentiometric method; and the content of organic carbon was determined using Tiurin’s method. The concentration of Mn and Cu in the roots of S. candensis correlated with the concentrations of the metals in the soil without regard to the soil condition or its organic carbon content. With a low soil pH and organic carbon content, Mn accumulation per 1 ramet in the aboveground parts of S. canadensis consisted over 50% of the total Mn content in the plant. In neutral or alkaline soils, the amount of Mn per 1 ramet accumulated in underground parts was over 60%. Regardless of the soil conditions, about 35% of Mn accumulated in rhizomes. Approximately 60% of copper accumulated in the underground parts of S. candensis (45% in rhizomes) without regard to the soil reaction or organic carbon content. The ability of the plant to accumulate large amounts of metals disposes Solidago canadensis as a candidate for the phytoremediation of soils contaminated with heavy metals.

scholarly journals Analysis of Selected Environmental Indicators in the Cultivation System of Energy Crops

2017 ◽  
Vol 14 (2) ◽  
pp. 64-69
Author(s):  
Božena Š Šoltysová ◽  
Martin Danilovič
Keyword(s):  
Organic Carbon ◽  
Nitrogen Fertilization ◽  
Energy Crops ◽  
Environmental Indicators ◽  
Soil Reaction ◽  
Available Phosphorus ◽  
Organic Carbon Content ◽  
Chemical Parameters ◽  
Miscanthus Giganteus ◽  
Phosphorus And Potassium

Abstract The changes of selected chemical parameters were observed in Gleyic Fluvisols. The field experiment was established as a twofactor experiment with four energy crops (Arundo donax L., Miscanthus × giganteus, Elymus elongatus Gaertner, Sida hermafrodita) and two variants of fertilization (nitrogen fertilization in rate 60 kg ha-1, without nitrogen fertilization). Soil samples were taken from the depth of 0 to 0.3 m at the beginning of the experiment in the autumn 2012 and at the end of reference period in the autumn 2015. Land management conversion from market crops to perennial energy crops cultivation has influenced changes of selected soil chemical parameters. The contents of soil organic carbon were affected by cultivated energy crops differently. It was found out that Arundo increased the organic carbon content and Miscanthus, Elymus and Sida decreased its content. At the same time, the same impact of the crops on content of available phosphorus and potassium and soil reaction was found. It was recorded that each cultivated crop decreased the soil reaction and available phosphorus content and increased the content of available potassium.

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 Availability of N, P, K and Their Relationship between Organic Carbon under Sugarcane-Ratoon- Wheat Cropping System in Western Uttar Pradesh Provinces, India

2021 ◽  
pp. 170-175
Author(s):  
Vipin Kumar ◽  
Satendra Kumar ◽  
R. I. Navsare ◽  
Akansha Singh ◽  
Pragati Kumar Maurya ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Sandy Loam ◽  
Soil Depth ◽  
Uttar Pradesh ◽  
Cropping System ◽  
Nutrient Status ◽  
Organic Carbon Content ◽  
Available Nitrogen ◽  
The Status ◽  
Sugarcane Ratoon

A study was conducted in the Meerut district of western Uttar Pradesh to evaluate the Soil characterization of sugarcane- ratoon- wheat cropping system. The soil samples were analyzed for various parameters in the laboratory. The status of available NPK in soils and other soil properties like pH, electrical conductivity (EC) and organic carbon (OC) content were assessed. Results reveal that the soils of the study area were sandy loam in texture, slightly alkaline in reaction and non-saline in nature. Nutrient status regarding available nitrogen is low in surface (0-15 cm) and subsurface (15-30 cm) soil while phosphorous and potassium low to medium in ranged at surface and subsurface also show that the availability of nutrient is decline gradually with increasing soil depth. A positively significant correlation of N, P, and K with organic carbon content was found.

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