Adaptation of agriculture to extreme weather events: evidence from apple farmers’ organic fertilizer use in China

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Abstract
Overcoming the challenge of more frequent and extreme weather events holds importance in agricultural production. We take spring frost disasters as a representative extreme weather event to identify how perennial economic crop farmers adjust the quantity of organic fertilizer used in response to extreme weather events and their adjustment mechanism. In this study, we establish a conceptual framework for the adaptation mechanism of apple growers under extreme weather events. This article draws and verifies five hypotheses through on-site investigations of apple growers in Shaanxi Province, China. Empirical evidence shows that farmers increase the quantity of commercial organic fertilizer materials in the year and in the following year when spring frost occurs, indicating that their adaptative behavior can be subdivided into repair and prevention. Mechanism analysis shows that liquidity constraints impact farmers' adaptive behavior. Liquidity constraints limit the ability of farmers to increase the quantity of commercial organic fertilizer materials to adapt to a spring frost disaster. Furthermore, for farmers not constrained by liquidity constraints, household resource endowment conditions still affect their adaptive behavior. Significantly, the household labor force size mainly influences farmers to increase commercial organic fertilizer to adapt to a spring frost disaster. Our findings highlight the differences between the adaptive behavior mechanism of perennial crop farmers and food crop farmers. Moreover, we reconfirm the stimulating effect of organic fertilizer on crop production.

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