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采用单因素随机区组试验,分析了不同施磷水平对西藏地区豌豆新品种藏豌1号生育进程、产量及其产量构成因素的影响。结果表明,在不施氮肥或氮肥施用量一致的情况下,施磷有助于缩短豌豆生育日期,增加株高、单株荚数、百粒重、单株产量、主茎分枝等。产量分析结果表明,随着施磷量的增加,产量呈先增加后降低的趋势;施磷可增加经济产量0.4%~6.5%,增加生物产量10.4%~15.3%,当施磷水平为375kg/hm~2时,豌豆产量最高,经济产量达6 467kg/hm~2,生物产量达12 095kg/hm~2。
A single factor randomized block experiment was conducted to analyze the effects of different phosphorus application levels on the reproductive process, yield and yield components of Pea No.1 in Tibet pea. The results showed that phosphorus application could shorten the growth date of pea, increase plant height, pods per plant, 100-grain weight, yield per plant, branch of main stem and the like under the condition of no nitrogen fertilizer or same amount of nitrogen fertilizer. The yield analysis showed that the yield increased first and then decreased with the increase of phosphorus application. Phosphorus application increased the economic yield by 0.4% ~ 6.5% and increased the biomass yield by 10.4% ~ 15.3%. When phosphorus application was 375kg / hm ~ 2, pea yield was highest, economic yield reached 6 467kg / hm ~ 2, and biological yield reached 12 095kg / hm ~ 2.