广东省花生测土配方施肥氮素指标体系研究  

Research of Nitrogen in Formula Fertilization by Soil Testing Index System for Peanut in Guangdong

作　　者：张桥 张育灿 林日强 于俊红[2] 徐培智[2] 彭智平[2] 黄继川[2] 

机构地区：[1]广东省耕地肥料总站,广州510500 [2]广东省农业科学院农业资源与环境研究所/农业部南方植物营养与肥料重点实验室,广州510640

出　　处：《中国农学通报》2014年第33期101-104,共4页Chinese Agricultural Science Bulletin

基　　金：广东省农用地测土配方施肥补贴项目"花生施肥指标体系建设"(粤财农[2012]407号)

摘　　要：为指导花生施肥,建立花生施肥指标体系,2008—2013年在广东省多个市县开展花生＂3414＂田间肥效试验研究花生施肥效应。对田间肥效试验结果进行统计分析后建立广东省花生土壤碱解氮丰缺指标数学模型：y=29.906lnx-54.015（r=0.766＊＊,n=60）;土壤碱解氮含量与推荐施氮量数学模型：y=-85.184lnx＋494.04（r=0.725＊＊,n=46）。根据建立的数学模型,确定土壤碱解氮丰缺范围分为：〈60 mg/kg、60~80 mg/kg、80~110 mg/kg、110~150 mg/kg、〉150 mg/kg 5个等级,对应的每公顷推荐施氮量为142.5 kg、120.0~142.5 kg、90.0~120.0 kg、67.5~90.0 kg和67.5 kg。This paper studied the effects of different fertilizer models on simulation for the 3414 fertilizer exper-iments, which were conducted from 2008 to 2012 in 30 cities in Guangdong Province. By analyzing the data,the index system of soil available nitrogen abundance of Guangdong peanut were established. The results indi-cated that, the regression equation index for soil available nitrogen content was y=29.906lnx-54.015（the corre-lation coefficients was 0.766）; the regression equation of the recommended nitrogen content was y=-85.184lnx＋494.04（the correlation coefficients was 0.725）. According to the mathematical model, the sufficiency and defi-ciency range of the soil effective nitrogen were divided into 5 levels： 〈60 mg/kg, 60-80 mg/kg, 80-110 mg/kg,110-150 mg/kg and 〉150 mg/kg, and the proposed index of supplying nitrogen per hectare were 142.5 kg,120.0-142.5 kg, 90.0-120.0 kg, 67.5-90.0 kg and 67.5 kg, respectively.

关 键 词：测土配方施肥 花生 养分丰缺指标 氮素 

分 类 号：S14-3[农业科学—肥料学]