双季机械直播早籼稻品种的丰产性和稳产性

陈丽明,周燕芝,谭义青,吴自明,谭雪明,曾勇军,石庆华,潘晓华,曾研华

High and Stable Yield of Early Indica Rice Varieties with Double-Season Mechanical Direct Seeding

LiMing CHEN,YanZhi ZHOU,YiQing TAN,ZiMing WU,XueMing TAN,YongJun ZENG,QingHua SHI,XiaoHua PAN,YanHua ZENG

表1 3个生态区试验田土壤理化性状

Table 1 Soil conditions of the test fields in three experimental locations

地点 Location 前茬 Fore crop pH 有机质 Organic matter (g·kg-1) 全氮 Total N content (g·kg-1) 速效磷 Available P (mg·kg-1) 速效钾 Available K (mg·kg-1) 鄱阳 Poyang 双季晚稻 Double cropping late rice 6.02 38.7 2.10 13.5 72.8 上高 Shanggao 双季晚稻 Double cropping late rice 5.21 34.3 1.59 16.4 68.1 兴国 Xingguo 双季晚稻 Double cropping late rice 5.03 35.8 1.97 14.4 68.4