Birhanu Iticha

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Questions related from Birhanu Iticha

Which organic compounds derived from organic materials are soluble in acids but insoluble in water?

When we add organic matter in the form of biochar or compost to acidic soils, the organic materials decompose and release alkalinity such as carbonates, organic anions, inorganic anions, organic...

12 May 2023 1,663 2 View

How to convert the ICP results presented in mg/L to mg/kg?

0.25 gram of soil sample is digested using 2 mL conc. HNO3 + 0.5 mL conc. H2O2 (i.e. a total of 2.5 ml of conc. acids). Then, distilled water was added to bring the solution in the digestion tube...

08 December 2022 774 8 View

What criteria are more important to secure PhD scholarships?

I need your help please

09 April 2019 3,653 15 View

What free software do we use to analyze PXRD data of soil sample?

I faced difficulty of analysis and interpretation of raw data of PXRD presented in "ras", "asc" and "raw" forms. Three of the files attached are PXRD data for one soil sample.

09 April 2019 2,448 11 View

Drought is more frequent in Sub-Saharan Africa than the rest of countries in the world. Why this region the victim?

Sub-Saharan African countries are frequently hit by drought. These countries have no advanced industries that release greenhouse gases into the atmosphere rather traps CO2 released by...

05 October 2017 8,748 10 View

How could we estimate the maximum organic carbon (OC) storage capacity of a soil using empirical equations?

Besides, what is the reason behind an argument which says "soil OC storage capacity of a soil is limited regardless of quantity of carbon input". Please I want to know if there is any general...

18 September 2017 5,808 3 View

Why do you think that a few soils are selectively ingested by livestock while most soils not? What makes them special?

Related to soil characteristics

01 August 2017 7,978 7 View

Why do you think are a few soils are selectively ingested by livestock while most soils not? What makes them special?

There might be characteristics that makes such soils special.

01 August 2017 2,720 4 View

How to find PhD scholarships?

Please extend your information. I need it carefully.

01 January 1970 8,460 12 View

How does the initial soil pH affects change in soil pH by organic amendments addition and various soil processes?

Soil pH can be reduced or increased by the addition of soil amendments. The change in soil pH, however, is affected by the composition of organic amendments, C and N cycles in the soil, and the...

01 January 1970 545 2 View

Can we find all of the four soil OC fractions in a soil 1 year after addition of organic amendments into the soil?

Soil organic matter is made up of four major pools or fractions – plant residues, particulate organic carbon, humus carbon, and recalcitrant organic carbon. Plant residues and particulate...

01 January 1970 581 10 View

Which soil : liquid ratio is recommended for determination of lime requirement using titration method?

I read many papers on the use of titration methods for determining lime rate. But there is no consistency on which soil: water ratio or soil to 0.01 M CaCl2 ratio is reliable for determining lime...

01 January 1970 3,409 0 View

Which methods of estimating pHBC and lime rate is good for acidic sandy soils?

I want to estimate the lime rate for acid sandy soils based on the pH buffering capacity (pHBC) of soils. Moreover, I need to evaluate the impact of different organic amendments on the soil pH...

01 January 1970 1,527 0 View

Which organic compounds derived from organic materials are soluble in acids but insoluble in water?

When we add organic matter in the form of biochar or compost to acidic soils, the organic materials decompose and release alkalinity such as carbonates, organic anions, inorganic anions, organic...

01 January 1970 6,132 4 View