For small grain, drying to 14% moisture (wet basis) is sufficient to inhibit both fungal and respirational activity. The shelf life of certain fruits (most commonly apples) may be extended through controlled atmosphere storage (using reduced atmospheric oxygen) in refrigerated stores. In most instances, the careful control of temperature and relative humidity is sufficient to extend the shelf life of most crop products stored on the farm. Increasing emphasis on quality control and assessment will be facilitated by novel items of equipment including the electronic nose, biosensors, X-ray computer-aided technology (i.e. three dimensional mapping; CAT scan), nuclear magnetic resonance (Figure 9) and chlorophyll fluorescence.
Because India's economy was growing slowly, a slower rate of mechanization and a larger volume of migration could have solved the labor shortages in Punjab at a lower capital cost. And the extra employment would have meant that the benefits of the green revolution were shared more widely with workers in poorer regions.