In this paper,we discuss soil nutrients change status of paddy rice land in Jidong coastal area since 1980,to analyse the reasons and put forward a modified way.

Study on long-term site-specific conservation tillage on sloping dryland in the western part of Henan——Ⅰ. Effects of No-till and subsoiling with mulching on growth characteristics and yield of winter wheat

Then,fertility evaluation index systems were established in each type of cultivated land area,according to the three major types of cultivated land area characteristics in Ming-guang city(Plain influx of farmland soil type,type of paddy cultivated land area,hilly mountain area of arable land types).