摘要
北方马铃薯农田多属于石灰性土壤类型,磷肥利用率普遍偏低。不同形态的磷肥在土壤中的转化不同,进而影响马铃薯对磷素的吸收利用。本试验以不施磷肥为对照,研究过磷酸钙、磷酸一铵、磷酸二铵对马铃薯磷素吸收、利用以及产量的影响。结果表明:在有效磷含量为15.2 mg·kg^(-1)的石灰性土壤上,分别单施160 kg·hm^(-2)过磷酸钙、磷酸一铵、磷酸二铵,马铃薯产量显著增加37.98%～57.81%,其中施用磷酸一铵的增产幅度最大;施用磷酸一铵还可显著提高马铃薯干物质累积量、叶面积指数、磷素累积量、单株产量及商品率;磷酸一铵的磷肥吸收利用率分别比过磷酸钙、磷酸二铵显著增加了103.13%、84.51%。
Potato farmland in northern China is mostly of calcareous soil type.The utilization efficiency of phosphorous fertilizer is generally low.The conversions of different phosphorous fertilizer forms in soil are different,affecting P absorption and utilization by potato.Taking no phosphorous application as the contrast,this paper studied on the effects of monocalcim phosphate(MCP),monoammonium phosphate(MAP),diammonium phosphate(DAP)on P absorption,utilization and yield of potato.The results indicated that on calcareous soil(available phosphorous was 15.2 mg·kg^-1)with 160 kg·hm^-2 MCP,MAP,DAP,respectively the potato yield would increase 37.98%-57.81%.Among them,applying MAP had the largest yield increasing range.Applying MAP could notably increase the dry matter accumulation of potato,leaf area index,phosphorous cumulant,single plant yield and commodity rate.Moreover,the absorption and utilization efficiency of P fertilizer by MAP could be significantly increased than that of MCP and DAP by 103.13%and 84.51%,respectively.
作者
秦永林
田艳花
樊明寿
石晓华
贾立国
陈杨
于静
QIN Yong-lin;TIAN Yan-hua;FAN Ming-shou;SHI Xiao-hua;JIA Li-guo;CHEN Yang;Yu Jing(College of Agronomy,Inner Mongolia Agricultural University,Hohhot 010019,Inner Mongolia,China;College ofGrassland and Resource Environment,Inner Mongolia Agricultural University,Hohhot 010011,Inner Mongolia,China)
出处
《中国蔬菜》
北大核心
2019年第5期70-75,共6页
China Vegetables
基金
国家重点研发计划项目(2017YFD0200200
2018YFD0200801)
内蒙古科技创新引导项目(KCBJ2018010)
内蒙古高校科学技术研究项目(NJZY18056)
关键词
马铃薯
产量
磷肥利用率
磷肥种类
Potato
Yield
Phosphorous use efficiency
Kinds of phosphorus fertilizer
