摘要
田间试验采用"3414"方案设计。在沈阳市不同土壤肥力上共布置了37个试验点,根据作物产量分为高产、中产、低产区,不同产区设计不同施肥水平。试验表明:大部分试验点的施肥水平设计是科学的,可为当地推荐施肥提供依据,同时对多点试验结果进行统计分析,以获得区域测土施肥参数;各种参数不一定是定值,但有规律可寻,如最高产量施肥量、最佳经济施肥量虽不是定值,但多数试验结果都在一定范围内浮动;试验得出土壤肥力、土壤有效养分较正系数、肥料利用率与土测值之间的关系,这些为沈阳市测土配方施肥提供了科学依据。
In this research, 37 test points including high yield, medium yield, low yield were selected using the ＂3414＂ plan, the results showed that： the fertilization level adopted were scientific and reasonable; the experimental determination results were analyzed for getting the fertilizing parameters that were not fixed value but has rule such as the fertilization of maximum yield; the relation of the optimum economical fertilization, the correction coefficient of fertility, available nutrient, fertility utilization and soil measuring value were analyzed for providing fertilization recommendation.
出处
《农业科技与装备》
2009年第1期18-20,共3页
Agricultural Science & Technology and Equipment
关键词
“3414”试验
玉米
土测值
施肥参数
＂3414＂ plan
corn
soil measuring value
fertilization oarameters
