In general, we do have two major routes, new cultivars of highly yield and/or tolerant to biotic and abiotic stresses, and improving factors of crop growth,such as fertility, ploughing, irrigation,...etc. Wish you luck .
The traditional analysis suggest the genetic and environmental components are predictive.
Biological inputs can be as effective and even superior to synthetic inputs favored by the original Green Revolution.
Human management can be focused as improving both the productivity and the quality and capacity of critical soil for agricultural activity, '
In the industrial revolution the managers became to realize everything that is measured can be improved.
Increasing soil organic matter can improve the ability the genetics and environment to be both highly productive and support a healthy environment.
Synthetic inputs in original Green Revolution increased productivity at an environmental cost the use of biological inputs and processed promises the ability to improve the productivity and environmental without the costs.
In our measurements and monitoring our goal is to direct our efforts for win win resolution rather that win lose resolutions.
Yes, biologicals hold a key place in the improvement of agricultural productivity. A case in point is biopesticides (mainly plant extracts) with effective control against certain crop pests and diseases. Effective micro-organisms (mainly lactic bacteria, photosynthetic bacteria , and yeasts) extracts applied on soil or as foliar feed have revolutionary results in improving crop productivity.