Study on Effects of Self-Made Functional Nutrient Solutions on Alleviating Celery Salt Stress
Animal nutrient solution(DW)and plant nutrient solution(ZW)are prepared by enzymatic hydrolysis using wastes from certain animals(shrimp powder,fish powder,bone powder,horn powder)and plants(soya bean meal,mushroom,seaweed,kelp)as main raw materials and plant-animal mixed nutrient solution(ZD)are prepared by mixing DW and ZW in a 1∶1 volume ratio.A pot experiment is carried out to study the effects of these three nutrient solutions on the growth of celery in soil with a salt mass fraction of 0.3%.A total of 11 treatments are set up in the experiment,with the treatment of non-saline soil without nutrient solution as control 1(CK1)and the treatment of saline soil without nutrient solution as control 2(CK2).The results show that the growth of celery of treatment CK2 under salt stress is significantly inhibited.Treatment ZD diluted 500 times can increase the height of celery plants,reaching 14.9 cm.Treatment ZW diluted 1 000 times has the highest number of tillers with a root volume of 9.3 cm3;the dry and fresh weight of the aboveground parts and the fresh weight of the underground parts are higher than those of other treatments;chlorophyll a,chlorophyll b,and total chlorophyll content are also the highest.Treatment ZW diluted 1 000 times can significantly improve the ability of celery to tolerate salt stress and promote its growth.
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