Analysis Of Tomato Growth And Purification Effect In The Aquaponic System

Because of the deteriorating environmental situation,eco-agriculture has attracted much attention.Aquaponic system also flourished.This experiment was carried out in the Aquaponic system of Qian yuan agricultural technology co.LTD of Jin Zhong.By adopting the fish pond breeding method,the purification effect of tomatoes in the Aquaponic system and the influence of pool liquid on tomato growth were studied,and the balance relationship of the Aquaponic system was analyzed.The results showed that in each of the 800 tomato plants(area 107.25m2,density 8 plants /m2)and the fish pond density was 26 /m3(treated by A)and 13 /m3(treated by B)(the fish pond volume was 38.5m3 and the average body weight was 25g/ m3),the ammonia nitrogen content in the fish pond remained at 0.13-0.53 mg /L during the whole test period from August to November 2018.The content of nitrite remained at 0.02 ~ 0.078 mg/L.The nitrate content remained at 63.73 ~ 85.37 mg/L.EC fluctuated within 401 ~ 592 mics /cm.The p H value fluctuated in the range of 6.91 ~ 7.68,and all the values remained within the safe range for the growth of California bass,indicating that tomatoes had a purification effect in this symbiotic system.CK was cultivated with nutrient solution(garden test formula),and the effects of pool solution on tomato growth were compared.It was found that the growth of tomatoes in the system was slightly worse,with each growth stage delayed by 7~10 days,and growth potential indicators,mineral absorption and fruit growth status were affected.In this fish-vegetable symbiotic system,the yield ratios of fish vegetables in group A and group B were 1:1.72 and 1:2.21 respectively.The yield ratio of bass in the two ponds was 2:1.The yield ratio of tomato in cultivation tank A and B was 1.56:1.It is concluded that the breeding and breeding ratio of group A is more appropriate.Through experiments,it can be concluded that the feeding amount of California bass is in direct proportion to the yield of fish dishes,the total mineral ions in the cultivation tank are smaller than that in the fish pond,and the comprehensive growth potential of tomato can be further verified by comparing with the growth potential of tomato in CK,the mineral ions of tomato in the fish dish symbiosis system are in deficit.Finally,it can be concluded from the benefit analysis that this study is helpful to the establishment and improvement of the Aquaponic system.