List the key factors that contribute to the observed changes in carbon allocation and stabilization within the rice-wheat cropping system.
Hello Dr. Tiwari
I already make a research paper to answer of your question in my country Egypt. I did my experiment on five year to see the quantitative impact of conservation tillage in Egypt. I will share with you the paper after i finished it.
with my regards@Himanshu Tiwari
Puget and Lal put the sequestration from no tillage in Mollisol in central Ohio at 330 kg/ha/yr.
If we use the no tillage estimate of 330 kg/ha/yr if that was done on all the tillage acreage it counter up to some 10% of emissions from greenhouse gases.
It would be an error I believe to think about single practices. For instance in our North American complex over 50% of maize carbon footprint is for ammoniated fertilizer.
If we rotate the maize crop after a soybean crop the need for nitrogen on soybean is eliminated lowering the carbon footprint by one half and because of the contribution residual of soybean the need for ammoniated fertilizer in maize is reduced in one half.
We see the carbon application of no till alone as 330 kg C per hectare per year.
Studies on cover cropping show the use of cover crop can sequester 2 to 4 times then no tillage alone.
If we use the no tillage estimate of 330 kg/ha/yr if that was done on all the tillage acreage it counter up to some 10% of emissions from greenhouse gases. the carbon nitrogen budgets in a way that productive agriculture can contribute very significantly to not only reducing emissions but also counteracting them in very significant ways.
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