Effects of Soil Conditioners on Aggregate Stability in a Clay Loam Soil: A Comparison Study of Biomass Ash with Other Four Conditioners

Abstract. This investigation examines the effect of different amendments on selected soil physical and biological properties over a 24-month period in two cropland fields. Urban municipal solid waste (MSW) compost and alfalfa residue (AR) were used as different organic amendments at the rates of 0 (control), 10 and 30 Mg ha−1 to a clay loam soil and a loamy sand soil in a semiarid region. Results showed that the soil improvement was controlled by the application rate and decomposability of amendments and soil type. The addition of organic amendments to the soils improved aggregate stability and consequently enhanced total porosity, especially macropore fraction. The increased soil organic carbon (SOC) and total porosity values as compared to the control treatment were greater in the loamy sand soil than in the clay loam soil. Moreover, compared to the microbial respiration of control plots, the application of MSW resulted in higher values of microbial respiration in the clay loam soil than in the loamy sand soil, whereas the reverse was found for AR. Linear and power functions were provided for the relationships between microbial respiration and SOC in the loamy sand and clay loam soils, respectively. Also, CO2 emission was stimulated significantly as power functions of the total porosity and the ratio of macroporosity to microporosity. However, the soil microbial respiration and carbon storage improved aggregate stability and pore size distribution, and as a response, soil porosity, especially the macropore fraction, controlled CO2 flux.

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Tillage impacts on aggregate stability and crop productivity in a clay-loam soil in central Iran

Soil and Tillage Research ◽

10.1016/s0167-1987(00)00140-9 ◽

2000 ◽

Vol 56 (3-4) ◽

pp. 205-212 ◽

Cited By ~ 57

Author(s):

M.A Hajabbasi ◽

A Hemmat

Keyword(s):

Aggregate Stability ◽

Crop Productivity ◽

Central Iran ◽

Clay Loam ◽

Clay Loam Soil ◽

Loam Soil

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Interactive Effect of Nitrogen Fertilizer Forms, Irrigation Intervals and Soil Conditioners on Maize Productivity Grown on Clay Loam Soil.

Journal of Soil Sciences and Agricultural Engineering ◽

10.21608/jssae.2017.38089 ◽

2017 ◽

Vol 8 (11) ◽

pp. 593-603

Author(s):

S. Abdou ◽

Azza Ahmed ◽

M. Bayoumi

Keyword(s):

Nitrogen Fertilizer ◽

Interactive Effect ◽

Clay Loam ◽

Clay Loam Soil ◽

Maize Productivity ◽

Loam Soil ◽

Soil Conditioners

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CO<sub>2</sub> emission and structural characteristics of two calcareous soils amended with municipal solid waste and plant residue

Solid Earth Discussions ◽

10.5194/sed-7-3151-2015 ◽

2015 ◽

Vol 7 (4) ◽

pp. 3151-3177 ◽

Cited By ~ 1

Author(s):

N. Yazdanpanah

Keyword(s):

Microbial Respiration ◽

Aggregate Stability ◽

Total Porosity ◽

Loamy Sand ◽

Clay Loam ◽

Power Functions ◽

Clay Loam Soil ◽

Sand Soil ◽

Loamy Sand Soil ◽

Loam Soil

Abstract. This investigation examines the effect of different amendments on selected soil physical and biological properties over a twenty four month period in two cropland fields. Urban municipal solid waste (MSW) compost and alfalfa residue (AR) were used as different organic amendments at the rates of 0 (control), 10 and 30 Mg ha−1 to a clay loam soil and a loamy sand soil in a semiarid region. Result showed that the soil improvement was controlled by the application rate and decomposability of amendments and soil type. The addition of organic amendments to the soils improved aggregate stability and consequently enhanced total porosity, especially macro pores fraction. The increased soil organic carbon (SOC) and total porosity values as compared to the control treatment were greater in the loamy sand soil than in the clay loam soil. Moreover, compared to the microbial respiration of control plots, the application of MSW resulted in higher values of microbial respiration in the clay loam soil than in the loamy sand soil, whereas the reverse order was found for AR. Linear and power functions were provided for the relationships between microbial respiration and SOC in the loamy sand and clay loam soils, respectively. Also, CO2 emission was stimulated significantly as power functions of the total porosity and the ratio of macro to micro pores. However, the soil microbial respiration and carbon storage improved aggregate stability and pore size distribution, as a response, soil porosity especially macro pores fraction controlled CO2 flux.

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Effect The Treatments of Biofertilizer and Mineral Fertilizer on Content of N P K of Soil Cultivated With Crop Corn (Zea Mays L).

Al-Qadisiyah Journal For Agriculture Sciences (QJAS) (P-ISSN 2077-5822 E-ISSN 2617-1479) ◽

10.33794/qjas.vol9.iss2.89 ◽

2019 ◽

Vol 9 (2) ◽

pp. 247-256

Author(s):

Mohammed Aajmi Salman ◽

Jawad A. Kamal Al-Shibani

Keyword(s):

Zea Mays ◽

Zea Mays L ◽

Mineral Fertilizer ◽

Silty Clay ◽

Clay Loam ◽

Potassium Fertilizer ◽

Clay Loam Soil ◽

Silty Clay Loam ◽

Fall Season ◽

Loam Soil

Beneficial microorganisms play a key role in the availability of ions minerals in the soil and use Randomized Complete Block Desing ( R.C.B.D ). The objective of this paper to the study effect of the of biofertilizer and miniral treatments on availability of NPK for crop corn zea mays L.Two types of biofertilizer are Bacterial Bacillus subtilis and Fungal Trichoderma harianum. Three levels of potassium fertilizer are (2.9533, 0.4000 and 2.9533). A field experiment in fall season of 2018 Has been conducted in silty clay loam soil. The experimental Results indicated that Bacillus and Trichoderma inoculation separately or together Have made a significant effect to increase in the availability of N P K in the soil compare to other treatments. The grain yield is where (2.9533, 0.4000 and 2.9533) of bacterial and fungal bio-fertilizer and potassium fertilizers respectively as compared to the control.

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