磷对不同基因型玉米生长及氮磷钾吸收的影响  

Effects of P fertilizer application on the plant growth and nutrient uptake of N,P and K in different maize cultivars

作　　者：袁硕[1] 彭正萍[1] 史建霞 王艳群[1] 薛世川[1] 

机构地区：[1]河北农业大学资源环境学院,河北保定071001 [2]河北省怀来县环保局,河北怀来075400

出　　处：《中国土壤与肥料》2010年第1期25-28,80,共5页Soil and Fertilizer Sciences in China

基　　金：国家粮丰工程河北省课题(2006BAD02A08);国家973计划基金(2007CB109302);河北省自然科学基金(C2007000525);国家科技支撑计划基金(2008BADA4B07-2)

摘　　要：采用田间试验法,在高磷和低磷土壤上分别设置施磷和不施磷处理,研究磷对9个玉米基因型生物量、产量、氮磷钾养分吸收量的影响及其各基因型间的异同,为磷肥合理施用提供科学依据。结果表明,在高磷土壤上,不施磷对各玉米基因型的生物量、产量、产量构成因素和多数玉米基因型的氮磷钾吸收量影响不大;在低磷土壤上,不施磷降低各玉米基因型的生物量、穗粒数、产量及氮磷钾吸收量。两个磷水平下,均以蠡玉16的生物量和产量最大,冀单28最小,这与前者具有较多的养分吸收量有关。不同玉米基因型间有明显差异,在玉米生产中应该因地制宜合理施用磷肥。On the higher and lower available P soils, treatments of P fertilizer application were designed in the field condition. Effects of P fertilizer application on the plant biomass, yield, nutrient uptake of N, P and K in nine maize euhivars, and their differences were studied. This provided the scientific basis for P fertilizer reasonable application. The results showed that on the higher available P soil, P fertilizer application hardly influenced the maize hiomass, yield and its constitute, and nutrient uptake of N, P and K. On the lower available P soil, without P fertilizer application decreased maize biomass, seed number per ear, yield, and uptake of N, P and K. Because of the higher nutrient uptake, liyu 16 had higher hiomass and yield under the condition of two P levels. Nine maize eultivars had significant difference. Therefore. according to soil available P content, reasonable P fertilizer application should be suggested in the maize produce.

关 键 词：磷 玉米 生长 氮磷钾吸收 

分 类 号：S513[农业科学—作物学]