摘要
为了探究提高燕麦产量的最优氮肥水平和磷肥水平的平衡点,为制定合理的栽培措施,实现高产提供理论依据,以白燕2号为材料,设置4个氮肥施用量(0、7、14、21 g·m^(-2))和4个磷肥施用量(0、5、10、15 g·m^(-2)),研究燕麦的生长特性、产量对不同氮肥和磷肥处理的响应.结果表明,单施氮肥、单施磷肥以及氮磷肥配施对燕麦各生长指标均有显著影响(P<0.05).单施氮肥或单施磷肥条件下,各指标均呈现先增加后降低的趋势.株高、叶面积在施氮量为14 g·m^(-2)、施磷量为10 g·m^(-2)时达到最大值;茎粗在施氮量为21 g·m^(-2)、施磷量为10 g·m^(-2)时达到最大值.千粒重、单株穗重、穗长、单株穗粒数、种子产量在施氮量为7 g·m^(-2)、施磷量为10 g·m^(-2)时达到最大值.穗长、千粒重、单株穗粒数及单株穗重与种子产量呈显著正相关(P<0.05).
In order to explore the balance point of the optimal nitrogen fertilizer level and phosphate fertilizer level to increase the yield of oats,and to provide a theoretical basis for formulating reasonable cultivation measures to achieve high yields,with BaiyanⅡas the material,four nitrogen fertilizer application amounts(0,7,14,21 g·m^(-2))and four phosphorus fertilizer application amounts(0,5,10,15 g·m^(-2))were set to study the growth characteristics and yield of oats in response to different nitrogen and phosphorus fertilizers.The results showed that the application of only nitrogen fertilizer,only phosphate fertilizer,and combined application of nitrogen and phosphorus fertilizers had significant effects on the growth indicators of oats(P<0.05).Under the condition of single application of nitrogen fertilizer or single application of phosphate fertilizer,each index showed a trend of first increasing and then decreasing.Plant height and leaf area reached the maximum when nitrogen application amount was 14 g·m^(-2) and phosphorus application amount was 10 g·m^(-2).The stem thickness reached the maximum when the nitrogen application amount was 21 g·m^(-2) and the phosphorus application amount was 10 g·m^(-2).Thousand-grain weight,spike weight per plant,spike length,number of grains per spike per plant,and seed yield reached the maximum when nitrogen application amount was 7 g·m^(-2) and phosphorus application amount was 10 g·m^(-2).Ear length,1000-grain weight,grain number per plant and ear weight per plant were significantly positively correlated with seed yield(P<0.05).
作者
蔡天革
杜春明
胡智馨
唐凤德
CAI Tiange;DU Chunming;HU Zhixin;TANG Fengde(College of Life Science, Liaoning University, Shenyang 110036, China;Business School, Liaoning University, Shenyang 110036, China)
出处
《沈阳大学学报（自然科学版）》
CAS
2021年第1期20-26,32,共8页
Journal of Shenyang University：Natural Science
基金
国家燕麦荞麦产业技术体系资助项目(CARS-08)
辽宁大学教学改革主持项目(JG2018ZC82).
关键词
燕麦
氮肥
磷肥
生长特性
产量
氮磷配施
oats
nitrogen fertilizer
phosphate fertilizer
growth characteristics
yield
combined application of nitrogen and phosphorus
