基质中不同化肥添加量对茄子穴盘育苗生长的影响

Effects of different chemical fertilizer additions on plug seedling growth of eggplant

根据新疆和田地区茄子育苗特点和出现的问题,以当地育苗配方(V椰糠∶V沙子∶V有机肥=20∶1∶1)为基质,在基质中添加不同用量的尿素、磷酸二氢钾和硫酸钾以提供N、P、K肥,配成5种含有不同化肥用量的基质,研究不同处理对茄子穴盘苗生长的影响。结果表明,F3处理茄子穴盘苗株高为14.20 cm,茎粗为0.27 cm,鲜质量为4.49 g,壮苗指数达0.21,均显著高于其他处理茄子穴盘苗。综上所述,基质中化肥添加量分别为:N 222.89 g·m-3,P2O5611.38 g·m-3,K2O 529.87 g·m-3的茄子穴盘苗质量最优,达到壮苗标准。

According to the characteristics and problems of eggplant seedlings in Hotan,Xinjiang,the local seedling formula(coconut bran∶sand∶organic fertilizer=20∶1∶1)was used as the substrate,to provide N,P,K fertilizers,different amounts of urea,potassium dihydrogen phosphate and potassium sulfate were added to the substrate,5 kinds of substrates with different amounts of chemical fertilizers were obtained,the effects of different treatments on the growth of eggplant plug seedlings were investigated.The results showed that the plant height of the eggplant plug seedlings treated with F3 was 14.20 cm,the stem thickness was 0.27 cm,the fresh weight was 4.49 g,and the strong seedling index reached 0.21,which were significantly higher than those of other treatments.In summary,the The optimal amount of chemical fertilizer added in the substrate for eggplant plug seeding was:N 222.89 g·m-3,P2O5611.38 g·m-3 and K2O 529.87 g·m-3,the eggplant seedlings under this treatment were with the best quality and reached the standard for strong seedlings.