氮肥减量配施不同生物有机肥对芹菜生长和产量品质的影响

Effects of reducing nitrogen fertilizer and applying different bio-organic fertilizers on growth, yield and quality of celery

  • 摘要:

    通过田间小区试验方法,以不施肥(CK)和只施化肥(CK1)为对照,研究了氮肥减施15%、30%和45%且配施三种不同的生物有机肥对芹菜(Apium graveolens)生长、产量和品质的影响,以明确生物有机肥与化肥配施对芹菜生长的促进作用,为当地芹菜高质量生产提供理论依据和技术支撑。结果表明,氮肥减30%+“中农绿康绿地康”生物冲施肥(T8)的芹菜株高和茎粗较CK1分别增加了26.5%、27.3%。氮肥减30%+“中农绿康”抗重茬微生态制剂(T2)、氮肥减30%+“兴农精赞”农用微生物菌剂(T5)、氮肥减30%+“中农绿康绿地康”生物冲施肥(T8)处理的产量分别为124 t·hm-2、126 t·hm-2和127 t·hm-2,以T8处理的产量最高,比CK1产量显著增加了15.4%。而且,T8处理的硝酸盐含量为78.9 mg·kg-1,低于所有施肥处理,较CK1显著降低了73.2%;且T8处理能够明显提升芹菜中的维生素C含量和可溶性蛋白的含量。氮肥减量30%并配施生物肥的处理对芹菜的生长和提质增效均有显著的作用,从三种生物肥料的作用效果来看,以“中农绿康绿地康”生物冲施肥的作用效果最佳,适合在当地推广。

     

    Abstract:

    In order to clarify the effect of bio-organic fertilizer combined with chemical fertilizer on the growth of celery and provide theoretical basis and technical support for local celery high-quality production, we studied the effects of 15%, 30% and 45% nitrogen reduction combined with three different biological organic fertilizers on the growth, yield and quality of Apium graveolens in a field plot experiment with no fertilizer (CK) and only fertilizer (CK1) as the control.The results showed that celery plant height and stem diameter of T8 treatment(30% nitrogen reduction+" Zhongnong Lvkang Lvdikang")was 26.5% and 27.3% higher than those of CK1, respectively. The yield of T2 (30% nitrogen reduction+" Zhongnong Lvkang"), T5 (30% nitrogen fertilizer reduction+" Xingnong Jingzan") and T8 (30% nitrogen reduction+" Zhongnong Lvkang Lvdikang") treatments was 124 t·hm-2, 126 t·hm-2 and 127 t·hm-2, respectively.T8 treatment was with the highest yield, significantly increased by 15.4% than that of CK1.The nitrate content of T8 treatment was with 78.9 mg·kg-1, lower than all fertilization treatments, and significantly lower than that of CK1 by 73.2%.The T8 treatment significantly increased the vitamin C content and soluble protein content of celery.The treatment of 30% nitrogen reduction combined with the application of biological fertilizer significantly improved the growth, the quality and efficiency of celery."Zhongnong Lvkang Lvdikang" biological fertilization was with the best effect, suitable for local promotion.

     

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