The yield impact can be positive in many environments, but negative in terminal drought environments.
Conservative estimation of yield impact forecasts effect step changes at maximal technology adoption in 2016, 2020, and 2024, with no phase-in period.
Methodology: As was the case with the mid-term evaluation, this study did not yield impact estimates or quantify the expected change over time due to the cash transfer.
According to Kato et al. (1999), fire exclusion is likely to be more advantageous with longer cropping phases, however, we found a greater positive yield impact, given as the percentage yield change, on the 3-month maize than the 3-year plantain.
Second, whether a reduction in growth rate or yield impact the frequency of the resistant type over time depends on the population structure and whether growth resources are shared or private (Pfeiffer et al. 2001; MacLean and Gudelj 2006; Frank 2010, 2014).
Several studies reported the response of rice seedlings to drought stress [ 13, 26, 40] however, little attention has been given to the expression of genes in water-stressed plants at the reproductive stage (flowering, grain filling) in which a higher yield impact is observed [ 6].
After 2050, the risk of more severe yield impacts increases, as boom-and-bust cycles affect many regions.
Water quality and crop yield impacts due to management factors such as cropping system, tillage, and drainage design were investigated.
Moreover, practically the entire distributions of potential yield impacts were negative suggesting CA is highly unlikely to generate yield benefits for farmers in the two locations.
Improving crop models' response to high temperature impacts on cereal yields will require experimental data representative of field production and should be designed to connect what is already known about physiological responses and observed yield impacts.
