鄱阳湖区耕作制度调查与试验

THE INVESTIGATION AND FIELD EXPERIMENTS OF FARMING SYSTEMS IN THE POYANG LAKE AREA

《鄱阳湖区耕作制度调查与试验》,从1983年开始至1986年结束,1987年通过鉴定,达到国内同类研究先进水平。本文发表的是综合报告的前言及主要结论和建议两部分。在前言中介绍了17个县市考察情况与5个3年复种轮作试验设计在3个地点的试验情况。在主要结论和建议中,通过调查提出了水田耕作制“一巩固、二改革、三发展、四良配套”及早地“四改”的结论。通过3年试验证明,多数复种轮作的经济产量、产能、产值、净产值、光合生产力、光能利用率、经济系数和能量产投比,均显著高于对照区复种连作,并推出多种可供推广的新的复种方式,建议领导重税有关部门推广试验成果,使之转化为生产力,为发展农业生产服务。

The investigation and field experiments of farming systems in the PoyangLake area began in 1983 and finished in 1986.In 1987,it passed the evaluationprocess and was recognized as being at the advanced level within the same researchfield in China.This paper includes two parts:the foreword and the main conclu-sions and suggestions——an outline of the comprehensive report.In the foreword,a brief introduction is made to the investigation of 17counties and municipalities and the design of five 3-year multiple cropping rota-tions and its practice at three experimental points.Through the investigation we proposed a new idea of farming systems in paddyfields on“one stablization,two reforms,three developments and four combinedmerits”and four reforms”of farming systems in upland fields.Through the experiments on five 3-year mutiple cropping rotations,it hasbeen proved that the economic yields,productive value,net productive value,productivity of photosynthesis,sunlight utilization,coefficient of economicyield and ratio of energy output to input of multiple cropping rotations aremuch higher than those of a multiple cropping sequence.Meanwhile,a number ofnew multiple cropping patterns suitable for extension are proposed.Lastly,we suggest that agricultural leaders and related departments shouldadopt effective measures to extend these research fruits and transform them intoproductive force,so as to meet the needs of the development of agricultural pro-duction in Jiangxi Province.