两种配方施肥方法的比较研究  

STUDY ON TWO METHODS OF FERTILIZER RECOMMENDATIONS BY COMPARISON

作　　者：周祖澄[1] 孙祎昌 王林宝[1] 王洪玉 金振玉 王喜东 

机构地区：[1]吉林农业大学农化教研室

出　　处：《吉林农业大学学报》1989年第1期14-19,共6页Journal of Jilin Agricultural University

摘　　要：为了探讨测土施肥与回归施肥在同一条件下的实施效果及应掌握的关键,于1982～1986年在吉林省农安县进行了研究。供试土壤为黑钙土及黑钙土型砂土,作物为玉米。试验设:不施化肥;习惯施肥;测土施肥;回归施肥4个处理。结果表明,两种配方施肥的实施效果均好于习惯施肥,二者之间无明显差异,在生产条件下均可应用。采用测土施肥时应正确选用施肥量计算公式中的主要参数。采用回归施肥时则应严格掌握肥料效应函数方程式的拟合精度,并以采用多年试验获得的最佳施肥量的平均值为宜。In order to compare the fertilizer application according to soil testing method and the method of fertilizer effect model under the same condi tions and to master the keys of these two methods, experiments were carried out in Chernozem and Molllc aeolian sandy soil in Nongan county of Jilin province during 1982-1986. The plant was corn (Zea maize L.) . The designs of the experimets were:(1) no fertilizer, (2) conventional method, (3) soil testing method,, and (4) fertilizer effect model me-thod. The results showed that the effects of the last two methods of fertilizer recommendations were better than that of the routine method. There was no significant difference between the two methods. Both of them could be used in practical conditions. When the soil testing method was used, the major parameters in the equation for calculation of application rates must be chosen correctly. When fertilizer effect model was being used, attention must be paid to its goodness of fit. It was suggested that it was better to use the average value of optimum rates of fertilizer which were obtained bv experiments for many years.

关 键 词：施肥 土壤养分 养分换算系数 土壤 

分 类 号：S147.2[农业科学—肥料学]