Effects of different fertilization modes on growth,yield and quality of Mini Chinese cabbage
[Objective]The study aimed to explore the effects of different fertilization treatments on the growth,yield and quality of Mini Chinese cabbage.[Method]With Chunyuhuang Mini Chinese cabbage as the test material,the experiment set up eight treatments of fertilization as follows:conventional fertilization(CK),conventional fertilization+organic fertilizer(T1),conventional fertilization+organic fertilizer+mi-crobial agent(T2),organic fertilizer(T3),organic fertilizer+microbial agent(T4),the reduced conventional fertilization by 50%+organic fertilizer(T5),slow-release compound fertilizer(T6),and the reduced conven-tional fertilization by 30%(T7).The Principal Component Analysis was used to comprehensively evaluate the effect of fertilization treatments on the production,yield and quality of the Mini Chinese cabbage.[Result]Compared with CK,all the eight fertilization treatments exerted no significant effect on the plant height.The crown width of T5 and T7 treatments increased by 9.43%and 7.52%,the aboveground fresh weight and the whole dry weight of T5 treatments increased by 25.23%and 14.16%,respectively,and the yield increased by 27.95%.Compared with CK,the nitrate content of the products of T7 and T3 was signifi-cantly reduced by 65.77%and 25.95%,respectively.Vitamin C content of T5 treatment was significantly increased by 47.83%,soluble protein content of T1 treatment was significantly increased by 6.54%,and soluble sugar content of T3 treatment was significantly increased by 15.3%.A total of 5 principal compo-nents were extracted by PCA,and the cumulative variance contribution rate reached 96.80%.The compre-hensive scores of the 8 fertilization treatments ranked as follows:T5>T6>CK>T3>T4>T2>T1>T7.[Conclusion]The reduced application of conventional fertilizer by 50%combined with 400 kg/667m2 or-ganic fertilizer treatment was beneficial to promote the growth of Mini Chinese cabbage and to improve its yield and quality,which could serve as a theoretical basis for high-yield and high-quality cultivation of Mini Chinese cabbage under the reduced fertilizer application mode.
Mini Chinese cabbagedifferent fertilizationyieldqualityprincipal component analysis
万方数据
维普
