Amino Acid Fertilizers And Fertilizers Applied To Facilities Study On Yield And Quality And Nitrogen Effect Of Tomato

In recent years,vegetable cultivation in solar greenhouses has become an important vegetable planting method in northern China.However,there are many drawbacks in the conventional greenhouse tomato cultivation techniques.Blind large-scale application of chemical fertilizers will lead to excessive nitrogen nutrients in the soil.The accumulation of nitrogen in the soil will cause a series of ecological environmental problems such as soil salinization,which will affect the yield and quality of greenhouse fruits and vegetables.This experiment was conducted in a greenhouse in the greenhouse of Houshan,Shenyang Agricultural University.Through potted tomato hydroponics experiments,the effect of different proportions of organic manure nitrogen and chemical fertilizers on the yield,quality,and nitrogen use efficiency of tomato were studied.Through the determination of tomato colonization at different time points such as 30 days,60 days,90 days,and 120 days,the indicators of nitrogen conversion in soil and nitrogen absorption and utilization of tomato plants were analyzed.Fertilizer application provides technical support for soil nitrogen levels,nitrogen transformation,absorption,and fertilizer application.The main findings are as follows:1.Under the same nitrogen application rate,the replacement of part of the chemical fertilizer with amino acid fertilizers can promote nitrate absorption by plants as nitrogen nutrition.The content of ammonium nitrogen and nitrate in the soil with 40% amino acid fertilizer instead of chemical fertilizer was the highest,which increased by 39.18% and 11.39% respectively compared with the control treatment,showing a significant level(P<0.05).Nitrogen fertilizer can increase the absorption of nutrients and the accumulation of dry matter in tomato,thus increasing the relative growth rate,plant height and stem diameter and other functional characteristics of tomato plants.When the amount of nitrogen applied was fixed,40% amino acid fertilizers were the substitutes for the fertilizer plants and the tomato trees were the best.The 100% amino acid fertilizers were used as substitutes for the growth of tomato plants.2.Under the same nitrogen application rate,applying 40% amino acid fertilizer as an organic fertilizer instead of part of chemical fertilizer can significantly increase tomato yield(P<0.05),which is 40.61% higher than the control,and its yield increase effect is better than single fertilizer or single fertilizer application.Apply organic fertilizer.3.Amino acid fertilizer as a part of organic fertilizer to replace part of chemical fertilizer can reduce the accumulation of nitrate and nitrite in tomato fruit,increase soluble sugar content,organic acid content,soluble protein content and vitamin C content in tomato fruit,and can improve the quality of tomato.4.Amino acid fertilizer replacement part of the fertilizer application can increase the absorption and utilization of nitrogen,and significantly increase the economic yield and economic benefits of tomato.Under the same nitrogen application rate,tomato nitrogen treated with 40% amino acid fertilizer as organic fertilizer instead of partial chemical fertilizer had the highest agronomic efficiency of 440.76 kg/kg,which was 162.76% higher than the control treatment,showing a significant level(P<0.05).).The total nitrogen uptake of the tomato under the treatment was highest,and the nitrogen use efficiency reached 68.37%,which was 89.27% higher than the control treatment,showing a significant level(P<0.05).5.Processing and analysis of the data,on the premise of ensuring that the yield of tomato is not reduced,the maximum limit of the percentage of amino acid fertilizers used as organic fertilizer to replace chemical fertilizers is 67.14%.