Transformation mechanism and availability of nutrients in albic soil-plant system Ⅰ.Phosphorus utilization rate in albic soil: a tracing study;

A study on the physiological properties of root systems in various wheat varieties and the effects of their phosphorus uptake and utilization efficiency on the yields;

Apraisal about the utilization efficiency of sports resource in colleges and universities;

Analysis on Utilization Efficiency of Agricultural Water Resource in China s Central and Western Regions;

Effective ways to increase the utilization ratio of colleges and universities credit funds;

It is the requirement for the development of the civilian-run colleges and universities to enhance the utilization ratio of the educational resources.

Supply,uptake and use efficiency of N,P and K in aerobic rice and wheat rotation system;

In view of economic benefit and environmental protection,more and more attention has been paid to nitrogen(N)use efficiency by plants in recent years.

Six types of rice--conventional Japonica (Ⅰ), hybid Japonica (Ⅱ), conventional Indica (Ⅲ), hybrid Indica (Ⅳ), widely\|compatible cultivars (Ⅴ) and two\|line hybrid Indica (Ⅵ), were cultivated in continuously flowing nutrient solution to investigate differences of nitrogen uptake and nitrogen use efficiency between rice types.

Intensifying the management of experiment apparatus and enhancing their using efficiency in universities;

There are mainly four factors that affect the using efficiency of credit fund in general universities: the first is institution factor;the second is that the objective guide of the state is absent;the third is the management idea of universities is old;the fourth is that the interior management within universities is not sufficient.

Urban land using efficiency has high relations between the human quality of life and sustainable development issues, is beneficial to easing the condition of less land and more people, and the obvious contradiction between supply and demand issues in China.