Analysis of Major Factors Influencing Crop Yield of Shandong Province

Abstract

Based on the evaluation on overall grain production capacity, the major factors influencing grain production in every decade were analyzed using the grain yield statistics in over 60 years of Shandong Province. The factors included crop varieties and related production techniques, applying amount of chemical fertilizers, total investment of agricultural machinery, natural hazards, agriculture policies and market. Their relations with grain production were also analyzed. The results showed that the first factor leading to the increase of interannual volatility of grain yield was the applying amount of chemical fertilizers; the second one was effective irrigation area, and the third one was grain cultivation area. Drought hazard was the main factor decreasing grain yield. Per unit yield was the first factor influencing total grain yield of Shandong Province. The hazard rate of farmlands had obvious effects on total grain yield, and they showed apparently negative correlativity.

Fund Project: Sponsored by Shandong Province agricultural application techniques innovation subject “Intelligent analysis on wheat production risk and study on key technology of early warning” and Shandong Province science and technology development plan (2012GNC11019) “study and application of key technology of winter wheat early warning of drought in Shandong”

Introduction of Author: Zhang Xiaoyan (1974–), female, doctor, associate researcher, comes from Tongliao of Inner Mongolia. Her study direction is monitoring and early warning of agricultural products and precision farming.