FENG Lingxia.Effects of Fertilization in Different Combination on the Traits and Yield of Alfalfa[J].Northern Horticulture,2017,41(06):85-90.[doi:10.11937/bfyy.201706020]
不同施肥配比对紫花苜蓿性状及产量的影响
- Title:
- Effects of Fertilization in Different Combination on the Traits and Yield of Alfalfa
- Keywords:
- fertilizer ratios; traits; yield; alfalfa in dryland
- 文献标志码:
- A
- 摘要:
- 以紫花苜蓿为试材，采用‘3414’部分实施方案，研究氮磷钾不同配比施肥对旱地紫花苜蓿性状及产量的影响。结果表明：不同氮磷钾配比施肥下，各茬次紫花苜蓿在整个生长过程中呈‘S’型生长曲线，符合限制密度下的种群Logistic增长模型；5年生旱地紫花苜蓿获得最佳产量栽培的氮磷钾施肥量方案为N2P4K3，即纯N为54 kg?hm-2，P2O5为135 kg?hm-2，K2O为15 kg?hm-2，产量为466.2 t?hm-2。
- Abstract:
- Alfalfa was used as test material to study the effect of different ratios of NPK fertilizer on characteristics and yield of alfalfa,using the ‘3414’ part of the implementation of the program.The results showed that under different combination of nitrogen,phosphorus and potassium,the growth of alfalfa in the whole process was ‘S’ type growth curve,in line with the restrictions on the density of the logistic growth model.Under the different fertilizer treatment,the best production of 5-year-old alfalfa in dryland was N2P4K3,that was nitrogen for 54 kg?hm-2,P2O5 for 135 kg?hm-2,K2O for 15 kg?hm-2,the yield was 466.2 t?hm-2.
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备注/Memo
作者简介：冯玲霞（1984-），女，硕士，园艺师，现主要从事无土栽培技术等研究工作。E-mail：fenglingxia0504@163.com.