Fan Ding 丁凡

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Questions related from Fan Ding 丁凡

Why soil organic matter did not incease after 30 years of residue addtion, but increase with manure addition?

Northeast China has a cold climate, with average temperature of 4.5 degree. The typical soil here is Mollisol with a high C content (13g/kg) in cropland. The data of a experiment site shows that...

08 December 2019 839 20 View

How to remove sand content after aggregate fractionation?

I am doing soil aggregate classification to divide soil to different sized aggregates including macro-aggregate (>250) and micro-aggregate (53~250). These obtained aggregates after sieving include...

16 March 2018 4,742 6 View

Why was soil respiration per carbon lower under manure application than under inorganic fertilizer in paddy field, but on the contrary for dry-land?

We simultaneously incubated soils under long-term manure and fertilizer application at the same condition. The soil carbon concentration and soil respiration per soil (ug CO2-C g-1 soil hr-1) was...

15 August 2014 5,160 16 View