scholarly journals Effect of different irrigation period and potassium humate on some soil properties and carrot productivity under saline soil conditions

2019 ◽  
Keyword(s):  
Soil Properties ◽  
Saline Soil ◽  
Soil Conditions ◽  
Potassium Humate ◽  
Irrigation Period

scholarly journals Biochar, Bentonite and Potassium Humate Effects on Saline Soil Properties and Nitrogen Loss

2020 ◽  
pp. 45-55
Author(s):  
S. A. Abdeen
Keyword(s):  
Soil Properties ◽  
Saline Soil ◽  
Nitrogen Loss ◽  
Winter Season ◽  
Nitrogen Retention ◽  
Column Experiment ◽  
Available Nitrogen ◽  
Potassium Humate ◽  
Nutrients Uptake ◽  
Leachate Solution

Aim: In order to study the effect of biochar, bentonite and potassium humate on saline soil characteristics, barley growth and nitrogen loss, a column experiment was conducted. Addition of the above mention materials was hypothesized to improve the characteristics of saline soil and decrease nitrogen loss in the leachate solution. Place and Duration of Study: Farm of Soils and Water Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt during the winter season of 2019. Methodology: Biochar and bentonite were added with rates 0, 5 and 10 g.kg-1; and the rates of potassium humate were 0, 5 and 10 mg.kg-1. Excess irrigations were implemented three times (on 12th, 24th, 36th days) during growing season. Leachate solution was collected after each excess irrigation from each column to determine nitrogen loss. Results: Main results show that total organic carbon and soil porosity were increased by increasing the addition rates of the studied materials, especially at the high rates of biochar and bentonite. Also, the availability of water significantly increased. Addition of biochar and bentonite gave the highest decreasing in leachate solution volume. Nitrogen loss was decreased significantly at the highest rates of the studied materials, where the decrement percentage in leachate solution reached at 36.07%, 35.82 and 23.81 at the highest rates of biochar, bentonite and potassium humate, respectively. That led to increasing the retention of available nitrogen in saline soil. Fresh and dry weights of barley plants were increased significantly by increasing the addition rates of all amended materials. Macronutrients (NPK) content and uptake were increased significantly by increasing the addition rates of the studied materials. Conclusion: Research results proved that changes in soil properties caused a significant increase in barley growth and nutrients uptake. Addition of biochar and bentonite were the best option for improving saline soil properties, barley growth and nutrients uptake and reduce nitrogen loss by improving nitrogen retention and decreasing the leachate volume.

scholarly journals Effect of Application of Different Quality Water through Pitcher Irrigation and Tillage Types on Tomato Production and Soil Properties of Coastal Saline Soil of West Bengal

2020 ◽  
Author(s):  
Rahul Adhikary ◽  
Arunabha Pal ◽  
S.K. De
Keyword(s):  
Soil Properties ◽  
Crop Production ◽  
Saline Soil ◽  
Chemical Properties ◽  
Growth And Yield ◽  
Soil Conditions ◽  
Primary Input ◽  
Tomato Production ◽  
Coastal Saline Soil ◽  
Quality Water

Background: Water and tillage are the primary input for crop production and increasingly become scarce due to its high demand in agricultural sector. Pitcher irrigation, a traditional system of irrigation alternative to drip method is the effective innovation of localized methods of irrigation. Methods: In this experiment different quality water through pitcher irrigation and tillage types were taken from coastal saline soil. The effects of yield factor, soil chemical properties of saline soil were studied using pitcher irrigation and tillage types. Result: Results indicate that soil physical and chemical properties were all significantly improved by different pitcher irrigation with tillage practices. Results also showed that present experiment favoring better soil conditions, nutrient availabilities towards better growth and yield of crops. Our study suggests that blending of saline with freshwater in presence of mulch tillage can provide the best estimation in the improving soil properties and tomato production above the coastal saline soil.

scholarly journals Biochar Improves Maize Growth but Has a Limited Effect on Soil Properties: Evidence from a Three-Year Field Experiment

2021 ◽  
Vol 13 (7) ◽  
pp. 3617
Author(s):  
Agnieszka Medyńska-Juraszek ◽  
Agnieszka Latawiec ◽  
Jolanta Królczyk ◽  
Adam Bogacz ◽  
Dorota Kawałko ◽  
...  
Keyword(s):  
Low Temperature ◽  
Field Experiment ◽  
Soil Properties ◽  
High Efficiency ◽  
Crop Yields ◽  
Temperate Climate ◽  
Soil Conditions ◽  
Maize Growth ◽  
Chemical Soil ◽  
Physical And Chemical

Biochar application is reported as a method for improving physical and chemical soil properties, with a still questionable impact on the crop yields and quality. Plant productivity can be affected by biochar properties and soil conditions. High efficiency of biochar application was reported many times for plant cultivation in tropical and arid climates; however, the knowledge of how the biochar affects soils in temperate climate zones exhibiting different properties is still limited. Therefore, a three-year-long field experiment was conducted on a loamy Haplic Luvisol, a common arable soil in Central Europe, to extend the laboratory-scale experiments on biochar effectiveness. A low-temperature pinewood biochar was applied at the rate of 50 t h−1, and maize was selected as a tested crop. Biochar application did not significantly impact the chemical soil properties and fertility of tested soil. However, biochar improved soil physical properties and water retention, reducing plant water stress during hot dry summers, and thus resulting in better maize growth and higher yields. Limited influence of the low-temperature biochar on soil properties suggests the crucial importance of biochar-production technology and biochar properties on the effectiveness and validity of its application in agriculture.

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