摘要
2020年通过田间小区试验研究测土配方施肥对慈利县中稻产量、产量构成以及氮、磷、钾肥料利用率的影响。结果表明:配方全肥处理的中稻籽粒产量达8 577.1 kg/hm^(2),较常规全肥处理增产2.24%;配方全肥处理每100 kg经济产量的氮、磷、钾养分吸收量分别为2.01、0.92和1.88 kg,较常规全肥处理分别提高0.20、0.07和0.36 kg;与常规施肥处理相比,配方施肥处理中稻的氮、磷、钾平均利用率分别提高1.86、2.01和6.59个百分点。总体而言,稳氮控磷增钾的测土配方施肥技术能有效改善慈利县中稻产量结构,提高水稻养分利用效率,实现增产增效,值得推广。
In 2020,a field plot experiment was conducted to study the effects of soil testing formula fertilization on middle rice yield and yield composition,and nitrogen,phosphorus and potassium fertilizer utilization rates were also investigated in Cili County.The results showed that the grain yield of middle rice in the formula full fertilizer treatment was 8577.1 kg/hm^(2),2.24%higher than in the conventional full fertilizer treatment;the uptake of N,P and K nutrients was 2.01,0.92 and 1.88 kg per 100 kg economic yield,respectively,0.20,0.07 and 0.36 kg higher than in the conventional full fertilizer treatment;the average utilization rates of N,P and K in the formula fertilization treatment were respectively 1.86,2.01 and 6.59 percentage points higher than those in the conventional fertilization treatment.In general,the soil testing formula fertilization technique of saving nitrogen,controlling phosphorus and increasing potassium can effectively improve middle rice yield structure,improve nutrient utilization efficiency,and realize the increases of rice yield and profits in Cili County,which is worth promoting.
作者
吴春娥
易宗建
李海露
袁沛
黎圣云
吴婷婷
古涛涛
周旋
WU Chun-e;YI Zong-jian;LI Hai-lu;YUAN Pei;LI Sheng-yun;WU Ting-ting;GU Tao-tao;ZHOU Xuan(Cili Agriculture and Rural Bureau,Cili 427200,PRC;Hunan Soil and Fertilizer Institute,Changsha 410125,PRC;College of Resources,Hunan Agricultural University,Changsha 410128,PRC)
出处
《湖南农业科学》
2023年第4期50-54,共5页
Hunan Agricultural Sciences
基金
湖南省土壤肥料工作站项目(湘土肥发[2020]9号)。
关键词
测土配方施肥
中稻
产量
肥料利用率
soil testing formula fertilization
middle rice
production
fertilizer utilization rate
