Abstract
The rapid growth of farmland rental markets in China raises questions about the association of farmland rental and agricultural productivity. Although this issue has been extensively studied, the majority of studies have focused on yields and technical efficiency, with input use and cost efficiency receiving little attention. This study aimed to determine the statistical association of wheat and maize farmers’ farmland rental behaviors (renting land, not renting land and renting out land) and input use, and the consequent association of farmers’ farmland rental behaviors and cost efficiency. For this purpose, the linear regression model and stochastic frontier model were employed, based on a survey data of 419 wheat and maize farmers in 25 villages in five counties of Gansu Province, China. The study found that farmland rental enhanced productivity and sustainability of agriculture through transferring farmland from households with less productivity to those with high productivity, and it was also helpful to reducing the consumption of fertilizers and chemicals in agricultural production. The results suggest that replacing labor with machines is an important way to reduce production costs, and households specializing in agricultural production use more rational amounts of fertilizers and chemicals than those with low productivity. Thus, the machinery purchase policy in China should continue to give great benefit to farmers. In addition, the machinery purchase subsidization policy has achieved satisfactory results in China, and it could be a good reference for other developing countries. However, some efficiency loss was found in households that rented out their land, and policy makers need to pay some attention to these households.
Highlights
The proportion of the world’s people that is hungry has dramatically decreased due to the marked growth in food production in the past half century [1]
Equation (1) estimates the statistical association of rural households’ farmland rental behaviors and input costs per unit output of wheat and maize production with least square method (OLS), and the results are provided in Tables 6 and 7, respectively
Based on survey data of 419 wheat and maize farmers in 25 villages in five counties of Gansu Province, this paper used linear regression models and stochastic frontier models to estimate the differences in inputs and outputs of wheat and maize production among households with different farmland rental behaviors, and the consequent impacts on the differences in cost efficiency
Summary
The proportion of the world’s people that is hungry has dramatically decreased due to the marked growth in food production in the past half century [1]. Growing population and limited arable land continue to challenge food security [2]. The global population will continue to grow to more than nine billion by 2050, and crop production should be doubled to keep pace with the demands for food due to population growth [3,4]. How to expand agricultural output without greatly increasing the amount of land and other input use becomes the key issue to ensure food security [3]. Over the past several decades, China has successfully created the “Miracle in China” by feeding 22% of the global human population with less than 9% of the world’s arable land, indicating a substantial contribution to global food security [7,8]. The change in land tenure greatly stimulated the enthusiasm of farmers and it has resulted in a huge growth in agricultural productivity since the late 1970s [11,12]
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