For example, the planting of Amaranth in dry (mainly unused) areas, cultivating algae in wet ones, using (and researching) old and new technologies for higher/ better production?
even on molecular basis dere has been introduction of various aspects so as to make things adjustable in harsh environment.
Estimation is based on research, experience, knowledge u apply to it.
Estimation can be done by comparing data and should select best possible alternative which yields more, is beneficial economically and for health as well.
The combination of old and new tech always help in giving better outcome.
overall plants can be cultivated in non-origin areas under protected conditions, eventually in soilless media. Tomato crops is an emblematic example of a 'high-tech' agriculture (e.g. up to 200 kg/m2 with inputs of light and CO2, etc.). This aim, however, is more expensive, while to my opinion the future trends should be producing food with lower inputs, lower production costs and higher sustainability for the environment, operators and consumers.
Los estimados de produccion se deriban de tres variables, el potencial genetico,las condiciones del cultivo(relacion suelo -planta-agua) y el clima, de esta manera si fijas estas condiciones puedes hacer variar las que puedas creer que te aumentaran la produccion.
Enough had done but fruits of your research is not reaching the people effectively.Put the question to farmer by going into his fields in remote areas and spend there a considerable time.It requires will and exposure from researchers and social workers. Please do this.
Gregory: Israel has a lot of experience in optimising production in dry areas. There are more methods (some very old, some brand new). I think a lot more can be done to transfer those techniques - raising food production. That's another point to take into account when creating models.
I agree with Giovanni: with lower inputs and production costs and higher sustainability for the environment and people.