优化施肥对鲜食型甘薯产量、养分利用及土壤性质的影响
Effects of Optimal Fertilization on Yield,Nutrient Utilization and Soil Fertility of Edible Sweet Potato
杨汉 1黄志谋 1瞿和平 1柴沙沙 2黎雨薇 1赵清纯 1秦晓银1
作者信息
- 1. 咸宁市农业科学院,湖北咸宁 437000
- 2. 湖北省农业科学院,武汉 430070
- 折叠
摘要
为实现鲜食型甘薯提质增效,本试验以'烟薯25'为供试品种,设置不施肥、习惯施肥、优化施肥、优化施肥+有机肥4个不同处理,研究不同施肥处理对土壤养分及'烟薯25'的产量效应、干物质分配、氮磷钾吸收利用情况.结果表明:施肥措施可以有效提高土壤养分含量,优化施肥+有机肥处理显著提升'烟薯25'的单薯重和鲜薯产量,促进生物产量向甘薯块根转运及干物质向块根分配,提高茎叶、块根及总生物量的氮、磷、钾积累量,且氮、钾的产块根效率和收获指数较习惯施肥均有显著性提高.
Abstract
To realize the promotion of quality and efficiency of edible sweet potato,'Yanshu 25'was used as the test variety in the experiment.Four different treatments were set up:no fertilization,customary fertilization,optimized fertilization,optimized fertilization+organic fertilizer.We compared the effects of different fertilization treatments on soil nutrients,yields,dry matter distribution of'Yanshu 25',and absorption and utilization of nitrogen,phosphorus and potassium.The results showed that:fertilization practices improved soil nutrients content effectively.Optimized fertilization+organic fertilizer treatment increased the single potato weight and fresh potato yields significantly of'Yanshu 25',promoted the transport of biological yields and dry matter allocation to sweet potato tuber,increased the accumulation of nitrogen,phosphorus and potassium in stem leaf,tuber and total biomass.The tuber production efficiency of nitrogen and potassium and the harvest index were significantly improved compared with conventional fertilization.
关键词
提质增效/'烟薯25'/优化施肥/土壤养分/氮磷钾Key words
promotion of quality and efficiency/'Yanshu 25'/optimized fertilization/soil nutrients/nitrogen,phosphorus and potassium引用本文复制引用
基金项目
农渔光(林光)互补发电项目(2021420120003603)
出版年
2024
国家科技期刊平台
NSTL
万方数据