Yield Gap Analysis: Implications for Research and Policy
Yield Gap Analysis: Implications for Research and Policy
Yield Gap Analysis: Implications for Research and Policy
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How high can average farm yields go?<br />
• Best current estimate:<br />
– 75-85% <strong>for</strong> irrigated crops<br />
– 70-80% <strong>for</strong> rainfed crops<br />
• Actual threshold depends on:<br />
– Relative prices <strong>for</strong> outputs versus inputs<br />
– Crop sensitivity to lodging, diseases <strong>and</strong><br />
insect pests, other stresses at high yield<br />
levels, <strong>and</strong> probability of intense storms<br />
• Rice more sensitive than maize (lower ceiling)<br />
• Wheat varies: southern (India) > northern<br />
(northern Europe)
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