摘要
通过田间微区试验,研究施用硒肥及4种不同形态磷肥对小麦硒吸收和磷肥利用率的影响。硒肥设不施硒(SE0)和施硒(SE)2个处理,各硒肥处理下设置5个磷肥处理,分别为不施磷肥(CK)、施用磷酸(AP)、聚磷酸铵(APP)、磷酸一铵(MAP)和磷酸二铵(DAP)。结果表明:不施硒肥条件下,不同形态磷肥均能促进小麦硒吸收,但小麦籽粒硒含量均未达到富硒稻谷国家标准。其中,APP处理磷肥利用率最高,分别较AP、MAP和DAP处理提高2.49、4.86和7.07个百分点。施硒肥条件下,小麦籽粒硒含量显著增加。其中,MAP处理小麦籽粒硒含量和产量分别较CK处理增加68.11%和56.70%,磷肥利用率分别较AP、APP和DAP处理提高16.09、15.03和14.86个百分点。因此,硒肥配合施用磷酸一铵能够增加小麦籽粒硒含量,提高磷肥利用率和产量。
The effects of applying selenium fertilizer and four different forms of phosphorus fertilizer on selenium absorption and phosphorus use efficiency of wheat were studied through field micro-region experiments.The selenium fertilizer was provided with two treatments of no selenium(SE0)and selenium(SE),and five phosphate fertilizer treatments were set up under each selenium fertilizer treatment,namely,no phosphorus fertilizer(CK),phosphate(AP),ammonium polyphosphate(APP),monoammonium phosphate(MAP)and diammonium phosphate(DAP).The results showed that:in the absence of selenium fertilizer,different forms of phosphate fertilizer promoted the absorption of selenium in wheat,but the selenium content of wheat grains did not meet the national standard of selenium-rich rice.Among them,APP treatment had the highest use efficiency of phosphate fertilizer,which increased by 2.49,4.86 and 7.07 percentage points compared with AP,MAP and DAP treatments,respectively.The selenium content of wheat grains increased significantly under the application of selenium fertilizer.Among them,the selenium content and yield of wheat treated with MAP increased by 68.11%and 56.70%,respectively,compared with CK treatment,and the use efficiency of phosphate fertilizer was increased by 16.09,15.03 and 14.86 percentage points compared with AP,APP and DAP treatment,respectively.Therefore,the combined application of selenium fertilizer and monoammonium phosphate can increase the selenium content of wheat grains,improve the use efficiency of phosphate fertilizer and yield.
作者
安军妹
范晓芳
侯振安
闵伟
冶军
索常凯
安映荷
王宗伟
AN Jun-mei;FAN Xiao-fang;HOU Zhen-an;MIN Wei;YE Jun;SUO Chang-kai;AN Ying-he;WANG Zong-wei(College of Agriculture,Shihezi University,Shihezi Xinjiang 832003)
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2021年第2期234-239,共6页
Soil and Fertilizer Sciences in China
基金
国家科技支撑项目:滴灌条件下粮食作物水肥资源高效利用与农田肥力提升研究与示范(2012BAD42B02)。
关键词
硒肥
磷肥
小麦
硒吸收
磷肥利用率
selenium fertilizer
phosphate fertilizer
wheat
absorption
phosphate use efficiency
