Distribution pattern of available soil water at planting for winter wheat in Huanghuai Plain;

Irrigation water requirement by winter wheat in Huanghuai Plain: Affecting facto rs and characteristics in different climatic years.

The connotations of water resources crisis and the analysis of Huang-huai-hai Plain;

Horizontal Transport of Nitrate in Main Soil Groups of Huang-Huai-Hai Plain;

Gray Comprehensive Correlation Analysis on Major Grain Output and Input Elements of Huang-Huai-Hai Plain;

The author selected Yanjin station as an example to research the differences of sandy land soil properties under different development and exploitation in Huang Huai Hai Plain.

This paper intends to evaluate the differentia of land use state among four counties with similar natural conditions in Huang huai hai plain so that the scientific strategy of land use for the counties can be provided.

Study on Biomass and Productivity of Populus Plantation in the Huanghuaihai Plain;

Ecophysiological characteristics of flag leaf of winter wheat in HuangHuaiHai Plain;

Study on the Classification of Farming System in Huanghuaihai Plain;

Time Series Analysis of Applied Fertilizer and Its Positive and Negative Effects on AgriculturalDevelopment in the Huang-Huai-Hai Plain;

Effect of the water change on the agricultural production and its countermeasures in the Huang-Huai-Hai Plain.;

The temporal and spatial patterns of climatic changes on the Huang-Huai-Hai plain are explored.

The high yielding cultivation methods of alfalfa and scientific management methods suitable for industrial production of alfalfa, according to the geographical conditions and climate characteristic in the low plain of Huanghuaihai area, were given in this paper.