摘要
为探寻提升测土配方施肥效果的有效方法,基于东北三省859户玉米种植户的微观调研数据,在运用随机前沿生产函数测算农业生产效率的基础上,使用内生转换回归模型评估测土配方施肥对农业经营收入的影响及其内在机制,并利用门槛回归模型和调节效应模型构建了相应的情境条件以增进积极影响。结果表明:1)测土配方施肥对农业经营收入的促进作用在生计兼业化和土地细碎化程度较低的农户群体中表现更明显。在反事实框架下,使用测土配方施肥使农业经营收入增加7.64%~13.04%;2)对内在影响机制的分析表明,测土配方施肥的使用提升了农业生产效率,主要通过降低施肥成本的路径促进农业经营收入增加;3)种植规模在测土配方施肥对农业经营收入的影响中存在门槛效应,随着种植规模的增加,测土配方施肥对农业经营收入的促进作用递增。此外,研究发现生产性服务、高标准农田建设以及连片化经营等情境因素在测土配方施肥对农业经营收入的影响中表现为调节效应,起放大增收效果的积极作用。综上,测土配方施肥效果的变化受农户资源禀赋差异和外部情境因素的共同制约。本研究可为优化绿色技术推广环境和因地制宜实施施肥指导提供经验证据与启示。
This study analyzed the micro-level survey data from 859 corn-growing households in Northeast China to explore effective methods for enhancing the efficacy of soil testing and formula fertilization.Based on the calculation of agricultural production efficiency by using the stochastic frontier production function,the endogenous switching regression model was adopted to evaluate the impact of soil testing and formula fertilization on agricultural operating income and its internal mechanism.The threshold regression model and the moderating effect model were utilized to construct the corresponding situational conditions to enhance the positive impact.The results show that:1)The promoting effect of soil testing and formula fertilization on agricultural operating income is more obvious in farmers who have a part-time livelihood and a low degree of land fragmentation.Under the counterfactual framework,the use of soil testing and formula fertilization increased the agricultural operating income by 7.64%to 13.04%.2)The analysis of the internal influencing mechanism shows that the use of soil testing and formula fertilization improves agricultural production efficiency,and mainly promotes the increase of agricultural operating income by reducing fertilization cost.3)There is a threshold effect of planting scale in the impact of soil testing and formula fertilization on agricultural operating income.With the increase in planting scale,the promoting effect of soil testing and formula fertilization on agricultural operating income increases.Situational factors such as productive services,high-standard farmland construction and contiguous management play a moderating role in the impact of soil testing and formula fertilization on agricultural operating income,which can positively amplify the effect of increasing income.In conclusion,the change in the efficacy of soil testing and formula fertilization is jointly constrained by the differences in farmers’resource endowments and external situational factors.This study can provide empirical evidence and enlightenment for optimizing the promotion environment of green technology and implementing fertilization guidance according to local conditions.
作者
刘强
吕杰
LIU Qiang;LYU Jie(College of Economics and Management,Shenyang Agricultural University,Shenyang 110866,China)
出处
《中国农业大学学报》
2026年第1期276-289,共14页
Journal of China Agricultural University
基金
国家社会科学基金重大项目(22&ZD083)
国家自然科学基金面上项目(72373101)。
关键词
测土配方施肥
农业经营收入
种植规模
情境因素
soil testing and formula fertilization
agricultural operating income
planting scale
situational factor
