scholarly journals Effect of biofertilizers on soil microbial count, nutrient availability and uptake under november sown onion

2017 ◽  
Vol 9 (1) ◽  
pp. 55-59
Author(s):  
Dilpreet Talwar ◽  
Kulbir Singh ◽  
Jagdish Singh
Keyword(s):  
Nutrient Availability ◽  
Arbuscular Mycorrhizae ◽  
N Uptake ◽  
Nutrient Status ◽  
Recommended Dose ◽  
Available Phosphorus ◽  
Microbial Count ◽  
Available Nitrogen ◽  
Soil Microbial ◽  
The Impact

Biofertilizers improves the soil microbial content, Soil nutrient status and nutrient uptake by plant. In an experiment, fifteen treatments comprised of various combinations of biofertilizers, organic manures and chemical fertilizers were compared to access the impact of different sources of nutrient on performance of onion. The highest soil organic carbon (0.40%) was observed in the treatments T12 (Farm Yard Manure (FYM) @ 20 t/ha) and T11 (FYM myctes count (29.9 X 104) was recorded in T11 (FYM @ 20 t/ha + Azotobacter + VAM) treatment while highest fungal @ 20 t/ha + Azotobacter + Vesicular-Arbuscular Mycorrhizae (VAM)). Highest bacterial (24.5 X 106) and actino-count (17.5 X 103) was observed in T3 (Azospirillium+ Recommended dose of NPK) treatment. At the time of harvesting, available nitrogen (N), available phosphorus (P) and available potassium (K) were higher in treatment T3 (Azospirillium + Recommended dose of NPK), T9 (Azotobacter+ VAM + Recommended dose of NPK) and T13 (Poultry treatment (162.6 Kg ha-1) as compared to all other treatments except T1 and T9 treatments while P uptake (13.6 Kg ha-Manure @ 5t/ha) treatments respectively than that in other treatments. Azospirillum and Azotobacter application along with recommended dose of N, P and K improved the fertility status of soil. The N uptake was significantly higher in T3 treatments. The present study highlights the need of use of biofertilizers along with organic and inorganic 1) was significantly higher in T9 treatment than that in other treatments except T1, T3, T5 and T7 treatments. The K uptake was significantly higher in T3 treatment (126.9 Kg ha-1) as compare to all other treatments except T1 and T9 manures/fertilizer to enhance the nutrient availability and improve soil health.

scholarly journals Effect of different levels of customized fertilizer on soil nutrient availability, yield and economics of onion

2015 ◽  
Vol 7 (2) ◽  
pp. 817-821 ◽  
Author(s):  
B. M. Kamble ◽  
D. K. Kathmale
Keyword(s):  
Nutrient Availability ◽  
Soil Nutrient ◽  
Recommended Dose ◽  
Soil Nutrient Availability ◽  
Available Nitrogen ◽  
Fertilizer Use ◽  
Use Efficiency ◽  
Equal Split ◽  
Different Levels ◽  
Time Of Harvest

A field experiment was conducted to study the effect of different levels of customized fertilizer (CF) on soil nutrient availability, yield and economics of onion. The results revealed that the significantly highest plant height (57.77cm), stem diameter (6.03cm) and bulb diameter (15.13cm) at the time of harvest, fertilizer use efficiency,bulb yield (22.34 t ha-1) and benefit:cost ratio (2.56) of onion were recorded in 100 % recommended dose of NPK through CF in three equal split doses. The significantly highest available nitrogen (213 kg ha-1), phosphorus (14.42 kg ha-1) were recorded in 125 % recommended dose of NPK through CF in two equal split doses and available K (804 kg ha-1) in 100 % recommended dose of NPK through CF in three equal split doses over the rest of the other treatments. The application of 100% recommended dose of fertilizer (100:50:50 N:P2O5:K20 kg ha-1) either two or three splits through CF to onion appears to be improving soil fertility, yield and yield contributing character of onion and getting higher net monetary returns.

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 Quantifying and Mapping of Major, Secondary and Micronutrient Status of Tomato Growing Soils in Kolar District, Karnataka Using GIS and GPS Approach

2020 ◽  
pp. 14-27
Author(s):  
P. N. Siva Prasad ◽  
C. T. Subbarayappa ◽  
V. Ramamurthy ◽  
A. Sathish
Keyword(s):  
Spatial Variability ◽  
Soil Fertility ◽  
Crop Production ◽  
Nutrient Management ◽  
Nutrient Status ◽  
Available Nitrogen ◽  
Micronutrient Status ◽  
High Nutrient ◽  
Nutrient Index ◽  
The Impact

Assessment of land use-induced changes in soil properties is essential for addressing issues of spatial variability in soil fertility and sustainable land productivity. In view of this, a study was conducted to assess the impact of spatial variability on physicochemical properties, macro and micro nutrient status of 75 farmers fields of tomato growing areas of Kolar district, Karnataka. Arc Map with spatial analyst function of Arc GIS software was used to prepare soil fertility maps, which would act as an important tool for soil as well as nutrient management for sustainable crop production by using Global Positioning System coordinates. The results revealed that the soils under investigation were acidic to alkaline in reaction (pH 4.41 to 8.13), mostly non saline and low to high in organic carbon status (0.53 to 1.95%). Available nitrogen, phosphorus, potassium and sulphur content varied from 150.53-348.10, 6.4 - 111.44, 147.18 - 916.61 and 12.29 - 103.8 kg ha-1. Exchangeable Ca, Mg are in the range of 2.5 – 14.2 and 1.2 – 6.6 C mol (p+) kg. The GIS-aided thematic maps with respect to available zinc, 6.67 (low), 21.33 (medium) and 72 (high) per cent samples were categorized, based on the existing critical limits. All the studied samples i.e., 100 per cent were high in copper content, 65.33, 30.67 and 4 per cent samples of Mn, 25.33, 32 and 42.67 per cent samples of Fe, were categorized as low, medium and high in nutrient status respectively. With respect to available boron 16.67 per cent was under low, 38.09 per cent was under medium and 45.24 per cent was under high nutrient status. The nutrient index (NI) of tomato growing areas of Kolar district revealed that N (1.19), manganese (1.39) and iron (1.29) were categorized as low, available boron (2.17) as medium and P (2.65), K (2.71), S (2.65) zinc (2.75), copper (3.0) as high nutrient index category.

scholarly journals The Relationship between Winter Temperature Rise and Soil Fertility properties

2012 ◽  
Vol 5 ◽  
pp. ASWR.S8599 ◽  
Author(s):  
Xiao Guoju ◽  
Zhang Qiang ◽  
Bi Jiangtao ◽  
Zhang Fengju ◽  
Luo Chengke
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Microbial Activity ◽  
Soil Ph ◽  
Salt Content ◽  
Soil Microbial Activity ◽  
Winter Temperature ◽  
Available Phosphorus ◽  
Available Nitrogen ◽  
Soil Microbial

The effects of winter temperature rises on soil microbial activity, nutrient and salinity in Ningxia Plain were studied in a field experiment using an infrared radiator to raise temperatures. Winter temperature rises led to increases in soil organic matter, available phosphorus, soil pH and total salt content, but decreased the available nitrogen in soil and the activities of soil catalase, urease and phosphatase. With a winter temperature of 0.5 °C-2.0 °C, the activities of soil catalase, urease and phosphatase were respectively decreased by 0.08-1.20 mL g-1, 0.004-0.019 mg g-1, and 0.10-0.25 mg kg-1; soil organic matter was increased by 0.01-0.62 g kg-1, available nitrogen decreased by 2.45-4.66 g kg-1, available phosphorus increased by 2.92-5.74 g kg-1; soil pH increased by 0.42-0.67, and total salt increased by 0.39-0.50 g kg-1. Winter temperature rises decreased soil microbial activity, accelerated the decomposition of soil nutrients, and intensified soil salinization.

scholarly journals Effect of Integrated Phosphorus Management on Macro and Micronutrient Status of Soil in Bt-Cotton

2021 ◽  
pp. 73-83
Author(s):  
K. V. S. L. Raj Rushi ◽  
P. Prasuna Rani ◽  
P. R. K. Prasad ◽  
P. Anil Kumar
Keyword(s):  
Block Design ◽  
Farmyard Manure ◽  
Soil Health ◽  
Crop Growth ◽  
Available Phosphorus ◽  
Growth Stages ◽  
Bt Cotton ◽  
Available Nitrogen ◽  
Randomized Block Design ◽  
The Impact

Aim: To evaluate the impact of integrated use of phosphorus on soil fertility in Bt-Cotton. Study Design: The experiment was laid out in randomized block design with three replications. Place of Study: At College Farm, Agricultural College, Bapatla, Guntur district. Methodology: After the preliminary layout, Tulasi-BG II hybrid of cotton was used as a test crop, with a spacing of 90 cm x 60 cm in the experimental site. Farmyard Manure @ 10 t ha-1 was applied 10 days prior to sowing while phosphorus solubilising bacteria @ 5 kg ha-1 was applied one day before sowing. Phosphorus was applied as per the treatments basally at sowing whereas, the recommended dose of nitrogen and potassium (120 and 60 kg ha-1, respectively) were applied in four equal splits at 20, 40, 60, and 80. Results: The treatments showed no significant influence on available nitrogen and potassium but, comparatively higher values of nitrogen and potassium were observed in organic treated plots. The available phosphorus content was markedly influenced by level of phosphorus as well as components of integration at all the crop growth stages. Highest available phosphorus was recorded on integration of maximum dose of phosphorus with Phosphorus solubilising bacteria (PSB) and Farmyard manure (FYM). The available micronutrient contents in soil did not show any marked difference among the treatments at all the stages of crop growth. Conclusion: Application of phosphorus along with Phosphorus solubilising bacteria (PSB) and Farmyard manure (FYM) can reduce the phosphorus requirement to crops as well as improves soil health.

scholarly journals Different Cropping System’s Effect on Available NPK Post-harvest and their Uptake on Sandy Loam Soil of Southern Telangana Zone, India

2020 ◽  
pp. 56-65
Author(s):  
Ch. Pragathi Kumari ◽  
M. Goverdhan ◽  
G. Kiran Reddy ◽  
Knight Nthebere ◽  
S. H. K. Sharma ◽  
...  
Keyword(s):  
Sandy Loam ◽  
Cropping Systems ◽  
Cropping System ◽  
Farming Systems ◽  
Nutrient Status ◽  
Pigeon Pea ◽  
Positive Influence ◽  
Available Phosphorus ◽  
Available Nitrogen ◽  
Available N

The present study was undertaken in the ongoing long-term experiment initiated during 2017 at experimental farm, College of Agriculture, Rajendranagar, Hyderabad. Soil samples collected from a depth of 0–15 cm was analysed for soil fertility parameters namely: available N, P and K. The results indicated that the different cropping systems had positive influence on improving the nutrient status (i.e., available N, P and K) significantly over the initial soil values (N: 112.20, P: 23.40 and K: 170.30 kg ha-1, respectively). These ten cropping systems were grouped in to five categories viz., pre-dominant cropping systems of the zone, ecological cropping systems, household nutritional security giving cropping systems, fodder security giving cropping systems and cropping systems involving high value crops. So that from each category, best cropping system can be identified and can be suggested to different integrated farming systems models. The maximum (221.60 and 221.57 kg ha-1) soil available nitrogen was obtained in Pigeon pea + Greengram (1:3) – Sesame after harvest of kharif and rabi, available phosphorus builds up was profound in Fodder maize – Lucerne (48.27 kg ha-1) and available K (207.63 kg ha-1) was higher in Rice –Maize cropping system after harvest. Fodder crops recorded significantly higher NPK uptake over other cropping systems.

scholarly journals The response of soil physicochemical properties and soil microbial respiration to different land use types: A case of areas in Central-North Hungary region

2021 ◽  
Author(s):  
Tsedekech Gebremeskel Weldmichael ◽  
Erika Michéli ◽  
Barbara Simon
Keyword(s):  
Land Use ◽  
Soil Moisture ◽  
Soil Properties ◽  
Microbial Respiration ◽  
Arable Land ◽  
Available Nitrogen ◽  
Soil Microbial ◽  
Soil Microbial Respiration ◽  
Land Use Types ◽  
The Impact

Land use change may modify key soil attributes, influencing the capacity of soil to maintain ecological functions. Understanding the effects of land use types (LUTs) on soil properties is, therefore, crucial for the sustainable utilization of soil resources. This study aims to investigate the impact of LUT on primary soil properties. Composite soil samples from eight sampling points per LUT (forest, grassland, and arable land) were taken from the top 25 cm of the soil in October 2019. The following soil physicochemical parameters were investigated according to standard protocols: soil organic matter (SOM), pH, soil moisture, NH4+–N, NO3––N, AL-K2O, AL-P2O5, CaCO3, E4/E6, cation exchange capacity (CEC), base saturation (BS), and exchangeable bases (Ca2+, Mg2+, K+, and Na+). Furthermore, soil microbial respiration (SMR) was determined based on basal respiration method. The results indicated that most of the investigated soil properties showed significant difference across LUTs, among which NO3––N, total N, and K2O were profoundly affected by LUT (p ≤ 0.001). On the other hand, CEC, soil moisture, and Na+ did not greatly change among the LUTs (p ≥ 0.05). Arable soils showed the lowest SOM content and available nitrogen but the highest content of P2O5 and CaCO3. SMR was considerably higher in grassland compared to arable land and forest, respectively. The study found a positive correlation between soil moisture (r = 0.67; p < 0.01), Mg2+ (r = 0.61; p < 0.01), and K2O (r = 0.58; p < 0.05) with SMR. Overall, the study highlighted that agricultural practices in the study area induced SOM and available nitrogen reduction. Grassland soils were more favorable for microbial activity.

scholarly journals Influence of different rice establishment methods and nutrient levels on soil enzyme activity, nutrient status and grain yield of rice in North Coastal Zone of Andhra Pradesh

2019 ◽  
Vol 56 (4) ◽  
pp. 380-387
Author(s):  
Ch S Rama Lakshmi ◽  
MBGS Kumari ◽  
T Sreelatha ◽  
A Sireesha
Keyword(s):  
Enzyme Activity ◽  
Foliar Spray ◽  
Nutrient Status ◽  
Crop Productivity ◽  
Potassium Nitrate ◽  
Soil Enzyme ◽  
Soil Enzyme Activity ◽  
Organic Carbon Content ◽  
Available Nitrogen ◽  
The Impact

To enhance productivity, alleviate environmental and management constraints and enhance farmers' income in the rice, new approaches that are labour-saving, more productive and sustainable need to be developed. Experiment was formulated to know the impact/influence of different rice establishment methods and different levels of nitrogen application on soil and crop productivity of rice. Results revealed that, among different rice establishment systems, machine transplanting recorded significantly higher yields followed by SRI method. Lowest yields were recorded in dry seed broadcasting method. With increasing nitrogen levels, yields were increased in all the systems and further enhancement of rice yields were observed with potassium nitrate foliar spray along with chemical fertilizers. Soil enzyme activity particularly urease and dehydrogenase was significantly high under normal planting and SRI method of planting, respectively and lowest enzyme activities were recorded in broadcasting of dry seed. Soil organic carbon content also followed the same trend as like enzyme activity. With regard to soil nutrient status, significant differences were not observed in phosphorus and potassium, however available nitrogen status was increased with increasing fertilizer levels and among different methods, drum seeding recorded highest status (286 kg ha-1).

scholarly journals Effect of Organic and Inorganic Sources of Nitrogen on Yield, Microbial Load and Soil Nutrient Status of Pearl Millet

2021 ◽  
pp. 67-75
Author(s):  
Tharapureddi Bhargavi ◽  
K. Mosha ◽  
M. Martin Luther ◽  
P. Venkata Subbaiah ◽  
N. Swetha
Keyword(s):  
Pearl Millet ◽  
Inorganic Nitrogen ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Microbial Load ◽  
Soil Nutrient Status ◽  
Similar Treatment ◽  
Soil Microbial ◽  
Soil Microbial Population ◽  
The Impact

Soil microbial population and soil nutrient status are important criteria for improving the yields. So this study is conducted with an objective to know the impact of organic and inorganic sources of nitrogen on yield, soil microbial load and nutrient status of the soil in pearl millet. A field experiment was conducted during kharif, 2019 at Agricultural College Farm, Bapatla on sandy soils with eight treatments consisting combined organic and inorganic nitrogen sources. The highest grain yield (2955 kg ha-1), straw (5867 kg ha-1) yield and soil nitrogen status (164.10 kg ha -1) were recorded with 75% Soil Test Based Nitrogen (STBN) + 25% vermicompost + Azospirillum @ 5 kg ha-1 and was followed by statistically similar treatment 100% STBN + Azospirillum @ 5 kg ha-1. Significantly higher microbial load (Bacteria, Fungi and Actinomycetes), P and K status in soil recorded with the treatments where 50% of STBN applied through FYM (50% STBN + 50% FYM + Azospirillum @ 5 kg ha-1), whereas lowest was recorded with chemical fertilizer alone. The combined sources of nitrogen both organic and inorganic fertilizers would be able to improve soil fertility and soil microbial load and finally improve the yields.

scholarly journals Nutrient status of wheat growing soils in Meerut district of Uttar Pradesh

2020 ◽  
Vol 15 (1) ◽  
pp. 65-67
Author(s):  
Rakesh Tiwari ◽  
Prabha Shankar Tiwari ◽  
Ashok Singh
Keyword(s):  
Nutrient Management ◽  
Uttar Pradesh ◽  
Nutrient Status ◽  
Soil Samples ◽  
Soil Testing ◽  
Available Phosphorus ◽  
Close Monitoring ◽  
Testing Laboratory ◽  
Available Nitrogen ◽  
Fertilizer Recommendations

A study was conducted on nutrient status of wheat growing soils in district Meerut Uttar Pradesh. The study was conducted in soil testing laboratory of Krishi Vigyan Kendra Meerut and soils were collected from farmer’s field in the year 2017-18 and 2018-19. The analysis of soil samples shows that most of the soils of Meerut district are low to medium in organic carbon (0.41%), low in available nitrogen (210 kg/ha), medium in available phosphorus (13.55 kg/ha) and potash (195 kg/ha) and there is a need for a close monitoring of nutrient management and application of the fertilizer recommendations on the basic of STB (soil testing based) to enhance the wheat productivity.

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