agricultural ecology
3.Research on Phosphorus Ioad from Agricultural Ecology System in Purple Soil of Middle-Sichuan by NPS Way and the Environmental Effects
4.Abstract: The idea that the essential contents of the change from quantity-increasing type agriculture to quality-benefit type agriculture is to improve the quality and benefit of agricultural increasing and to safeguard the balance kf agricultural ecology was set forth after discussion of the changing necessity.At the end,it was given that the main way of achieving the change is to increasing the scientific and technological contents of agricultural productivity,to perfect the market system of agricultural products and to amplify the system of government support.
5.The evaluation of ferrilizing techniques are of practical mearling when the ratio of grain N%dff(or dfs) values to straw dff/dfs values which show the magnitude of contribution from different N sources to the rice grain,and the fertilizer N balalice in the agricultural ecology were concerned.
6.It is proposed the agricultural chemicals enterprise ecology risk assessment constitutes by four parts: acceptor appraisal, harm appraisal, exposed appraisal and risk attribute.
7.Land consolidation is an activity that benefits the nation and the people through comprehensive rearrangement of land utilization patterns, structures and distribution, improvement of agricultural production condition, ecology and environment, and enhancement of land productivity and realize intensive land utilization.
8.Light stability of photo-ecology agricultural film was studied in this paper and has observed that the relation between yield of crops and luminescence intensity of photo-ecology agricultural film was positive correlation.
9.It was proved that if the tea garden was managed according to the organic agricultural production regulation, it would speed the well-cycling of soil ecology, and would he of great advantage to the forming of activated soil with increasing years of planting.
10.This thesis researches the methodologies in ecology, environment and sustainable economy, from both domestic and overseas resources, and develops a comprehensive appraising model for ecological agricultural performance according to the principle of a multi-purpose appraising. Forced Defining method and Delphi method are applied in filtering indexes and data composing.
