Effects of Nitrogen Application on Yield Performance and Quality of Purple Potato in Yanghuang Irrigation Area of Ningxia
《北方园艺》[ISSN:1001-0009/CN:23-1247/S]
- Issue:
- 2018年24
- Page:
- 48-53
- Research Field:
- Publishing date:
Info
- Title:
- Effects of Nitrogen Application on Yield Performance and Quality of Purple Potato in Yanghuang Irrigation Area of Ningxia
- Author(s):
- ZHU Jinxia1; KONG Dejie1; LI Miao1; ZHENG Guobao1; QU Jisong2; ZHANG Lijuan2
- (1.Agricultural Biotechnology Research Center,Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan,Ningxia 750002；2.Institute of Germplasm Resources,Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan,Ningxia 750002)
- Keywords:
- purple potato; nitrogen application; Ningxia Yanghuang irrigation district; production performance; quality
- PACS:
- -
- DOI:
- 10.11937/bfyy.20181877
- Abstract:
- In order to provide reference for high yield and high efficiency cultivation of purple potato in Yanghuang irrigation area of Ningxia,the effect of nitrogen fertilizer application on yield performance and quality of purple potato was studied,the ‘Lingzi’ purple potato was used as the experimental crop,from 2015 to 2016,the field experiments was conducted in the Yanghuang irrigation area of Hong Sibao in Ningxia.The application amount of nitrogen fertilizer was set to be 0,30,60,90,and 120 kg·hm-2.The effects of different nitrogen treatments on yield,quality and utilization efficiency of sweet potato fertilizer were analyzed.The results showed that the rate of the N application had a great effect on purple potato yield,components and dry matter content,as the amount of fertilizer increased from 0 to 90 kg·hm-2,the production of the fresh potato in harvest,the number of the potato per plant,the weight of the total potato per plant and root dry matter accumulation,were all increased gradually,but if the nitrogen was more than 120 kg·hm-2,it was not conducive to raise the output of fresh potato.Nitrogen fertilization had some effect on anthocyanin synthesizes in purple potato root,when the nitrogen is lower,it was beneficial to promote the synthesize of anthocyanin,high nitrogen fertilization,inhibit the synthesis of anthocyanin,but could stimulate protein synthesize in the purple potato root.The nitrogen uptake of the purple potato which on the ground,underground and the whole plant changes were different,with the increase of N application,the ground part of nitrogen uptake was increased gradually,in the treatment of 120 kg·hm-2 reached the maximum,the nitrogenous uptake of the underground part and the whole plant,were increased first and then decreased,in the treatment of 90 kg·hm-2 reached the maximum value.The utilization rate of nitrogenous fertilizer,increased with the added of nitrogen fertilizer first,the treatment of 60 kg·hm-2 was the highest,reaching 33.5%,then decreased.Under the consideration of the factors,such as crop yield,nitrogen utilization,soil fertilizer such as,comprehensively,the moderate of nitrogen was from 60 to 90 kg·hm-2 in this experimental conditions,appropriate amount of nitrogen fertilizer was conducive to the growth of aerial part and underground part,to speed up the transport of nutrient to potato root,so as to realize high yield and high nitrogen productivity.
Last Update: 2019-01-22