In the Kilosa project opportunity costs for shifting cultivation amount to US$8.8tCO2O2, while for unsustainable charcoal production opportunity costs are US$12.1tCO2O2.
Furthermore, when previously uncultivated land, including tropical forests, is brought into cultivation, large amounts of carbon are released from the soil, worsening the carbon dioxide balance.
In this study they evaluated the impact of three cultivation factors, amounts of refinery residue, glutamic acid and yeast extract.
During the three-day cultivation, the amount of xylitol increased 233%, the amounts of glycerol and lactic acid did not change significantly, and acetic acid had been totally consumed after 24 h.
After 5 days of cultivation, the total amount of carotenoids was significantly higher in 0.75 M (3.952 mg/L) and 1 M (2.89 mg/L) NaCl treatments than control (1.636 mg/L), respectively.
Over 4 weeks of cultivation, the amount of cartilaginous components including BKCs, glycosaminoglycans (GAGs) and collagen enhanced with time.
Instead, landowners paid tax for cultivation, which amounted to up to one-half of all harvested produce.
The mineral medium composition for the N-limited cultivations was (amounts per liter): (NH4 2SO4 1 g, KH2PO4 3 g, K2SO4 5.3 g, MgSO4·7H2O 0.5 g, Trace Metal Solution 1 mL, antifoaming agent 0.05 mL and vitamin solution 1 mL.
The mineral medium composition for the C-limited cultivations was (amounts per liter): (NH4 2SO4 5 g, KH2PO4 3 g, MgSO4·7H2O 0.5 g, Trace Metal Solution 1 mL, antifoaming agent 0.05 mL and vitamin solution 1 mL.
The mineral medium composition for the N-limited cultivations was (amounts per liter) as follows: 1 g (NH4 2SO4; 3 g KH2PO4; 5.3 g K2SO4; 0.5 g MgSO4⋅7H2O; 1 ml Trace Metal Solution; 0.05 ml antifoaming agent; and 1 ml vitamin solution.
