氮磷钾肥配施对闽东地区甘薯增产效应分析

王和寿

doi:10.13651/j.cnki.fjnykj.2022.10.013

氮磷钾肥配施对闽东地区甘薯增产效应分析

王和寿

宁德市农产品质量安全检验检测中心, 福建宁德 352100

详细信息

作者简介:
王和寿,男,1972年生,高级农艺师,主要从事农产品质量安全与作物栽培研究。

中图分类号: S531
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出版历程
- 收稿日期: 2022-08-31
- 刊出日期: 2022-10-27

Effect Analysis of the Combined Application of Nitrogen, Phosphorus and Potassium Fertilizer on the Yield Increase of Sweet Potato in Eastern Fujian

WANG He-shou

Ningde Inspection and Testing Center of Agricultural Product Quality and Safety, Ningde, Fujian 352100, China

摘要

摘要: 研究氮、磷、钾平衡施肥对甘薯普薯32的增产效果,以为普薯32在闽东地区的推广提供参考依据。以普薯32为试验材料,采用田间“3414”试验方法,比较分析不同氮磷钾配施对普薯32产量的影响。结果表明:不同氮、磷、钾施肥量均显著影响甘薯普薯32的产量,其中氮肥影响最大,钾肥次之,磷肥最小。统计分析显示,普薯32鲜薯产量与氮、磷、钾施肥量之间存在显著的回归关系。当三要素比例为1.00∶0.45∶1.46时,即纯N施用量为128.55 kg·hm^-2、P₂O₅施用量为57.64 kg·hm^-2、K₂O施用量为187.65 kg·hm^-2,其鲜薯产量最高,达44 509.7 kg·hm^-2,试验结果可为闽东地区推广普薯32提供科学施肥依据。
- 甘薯 /
- 普薯32 /
- 氮磷钾肥配施 /
- 产量
Abstract: The effect of balanced fertilization of nitrogen, phosphorus and potassium on the yield increase of sweet potato Pushu 32 was studied in order to provide reference for the promotion of Pushu 32 in eastern Fujian. By taking Pushu 32 as the experimental material, the effects of different nitrogen, phosphorus and potassium on the yield of Pushu 32 were compared and analyzed by using the ″3414″ experimental method in the field. The results showed that different amounts of nitrogen, phosphorus and potassium fertilizer significantly affected the yield of sweet potato Pushu 32, among which nitrogen fertilizer had the greatest effect, followed by potassium fertilizer and phosphorus fertilizer had the least effect. The statistical analysis showed that there was a significant regression relationship between the fresh potato yield of Pushu 32 and the amounts of nitrogen, phosphorus and potassium fertilizer. When the ratio of the three elements was 1.00 ∶ 0.45∶ 1.46, that was, the pure nitrogen application rate was 128.55 kg·hm^-2, the phosphorus pentoxide application rate was 57.64 kg·hm^-2, and the potassium oxide application rate was 187.65 kg·hm^-2, the fresh potato yield was the highest, reaching 44 509.7 kg·hm^-2. The results of this experiment could provide scientific fertilization basis for the planting promotion of Pushu 32 in eastern Fujian.
- Sweet potato /
- Pushu 32 /
- Nitrogen-phosphorus-potassium fertilizer application /
- Yield

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