摘要
为了探究鲜食胡萝卜在山西省晋中市的栽培模式,以鲜食胡萝卜品种彤心105为材料,在耕层土壤掺入不同比例沙子(无掺沙(CK)以及掺沙150、300、450 m^(3)/hm^(2))并设置不同栽植株距(3、5、8 cm),比较不同处理下胡萝卜的农艺性状和经济性状指标。结果表明,掺沙对土壤理化性质影响较大,掺沙后土壤含水量呈现先增加后降低的趋势,土壤孔隙度和pH值随着掺沙量的增加逐渐增加,有机质和总氮含量随着掺沙量的增加先增加后降低,速效磷和速效钾的含量随着掺沙量的增加逐渐减小;胡萝卜地上部分生长情况均在CK中最优,地下部分的生长及产量在掺沙150 m^(3)/hm^(2)中最佳,该掺沙量下的土壤孔隙度为44.46%。在掺沙基础上比较不同株距胡萝卜的生长结果显示,地上部分在3、5 cm株距下生长较好,营养物质积累在5 cm株距下最多,产量在3 cm株距下最高。说明鲜食胡萝卜在山西晋中市最适宜的栽培模式为掺沙150 m^(3)/hm^(2)的土壤基础上5 cm栽植株距。
In order to explore cultivation model of fresh-eating carrots in Jinzhong city,Shanxi province,with the material of the fresh-eating carrot variety Tongxin 105,different proportions of sand(no sand,150,300,450 m^(3)/hm^(2))were mixed into the plough layer soil,meantime different planting spacing(3,5,8 cm)were designed.The agronomic and economic characteristics of carrots were compared under different treatments.The results showed that sand mixing had a greater impact on soil physical and chemical properties.After mixing with sand,soil water content first increased and then decreased.Soil porosity and pH gradually increased with increase of the amount of sand,and organic matter and total nitrogen content first increased and then decreased with increase of the amount of sand,and the contents of available phosphorus and available potassium gradually decreased with increase of the amount of sand.The growth of the above-ground part of carrot in CK was the best.The growth and yield of the underground part in the treatment of 150 m^(3)/hm^(2) with sand were the best,and the soil porosity at this amount of sand was 44.46%.By comparison of treatments with different plant spacing on the basis of sand mixing,the above-ground part of carrots grew better at 3 cm and 5 cm plant spacing,accumulation of nutrient quality was the highest at 5 cm plant spacing,and yield was the highest at 3 cm plant spacing.It showed that the most suitable cultivation mode for fresh-eating carrots in Jinzhong city,Shanxi province was 5 cm of plant spacing based on soil mixed with 150 m^(3)/hm^(2) of sand.
作者
桑维峻
张晶
武喆
侯雷平
李梅兰
SANG Weijun;ZHANG Jing;WU Zhe;HOU Leiping;LI Meilan(College of Horticulture,Shanxi Agricultural University/Collaborative Innovation Center for Improving Quality and Increasing Profits of Protected Vegetables,Taigu 030801,China;Xi'an Institute for Innovative Earth Environment Research,Xiran 710061,China)
出处
《山西农业科学》
2022年第2期179-185,共7页
Journal of Shanxi Agricultural Sciences
基金
山西省重点研发计划重点项目(201703D211001-04-01)
山西省重点研发计划项目(201903D221063)。
关键词
鲜食胡萝卜
栽培模式
掺沙
株距
晋中市
fresh-eating carrots
cultivation mode
sand mixing
plant spacing
Jinzhong city
