Nutrient Effect Of Balance Fertilization On Plant Growth, Yield And Quality Of Jasmine

The effect of mass element, minim element and bioactive compound (FA) on plant growth, yield and quality of jasmine was studied by the pot experiment and field experiment.(1) Study was done on the effect of three-factor (N, P, K) experiment on field by using the quadratic rotational combination design in purple paddy field. The model of fertilizer effect was established by reducing dimensional analysis. The results show that the yield of jasmine had a negative correlation with supply of N and a positive correlation with supply of P, K from overall. The influence of N, P, K on the yield of jasmine ordered in K>P>N. The optimal combination of N> P> K was 132.4-197.6kg/hm2N, 166.6-197.4 kg/hm2P2O5, 126.8-197.4 kg/hm2K.2O.(2) The effect of different Fe fertilizer, boron fertilizer and CPPU on plant growth, yield and quality was studied by foliar application in the field. The results indicated that the Fe-EDTA, FeSO4, ironic citrate and borax could promote the growth, increase the amount of bud, the number of catkins per reproductive branch, weight of bud and the yield. The influence order was FeEDTA >ironic citrate >FeSO4> Fe-EDTA(0.1%)> FeEDTA(0.05%). CPPU (50mg/kg) could increase the diameter of stem, area and ply of laminae, but restrain the divarication of tress and procreation polarization. CPPU could decrease the number of catkins per reproductive branch, amount of bud, weight of bud and yield. The effect of borax ordered in 0.2%>0.3%.(3) The effect of foliar application of FeEDTA (300mg/kg,600mg/kg,900mg/kg) were studied by pot experiment. The results showed that the chlorophyll content of young leaves and catalyse activity was higher than CK after the Fe-EDTA application. In the total bearing period, catalyse activity of young leaves increased to a certain point and then declined, maximum of catalyse activity appeared in July and August, the Jasmine began to decrepit after August. The amount of total nitrogen, total kalium, total iron, active iron of jasmine leaves were increased after Fe-EDTA application, but the total phosphor was decreased.And at the same time the rate of using of mass elements and minim elements in the soil ware improved, the yield and quality were increased. The effect of FeEDTA ordered in 900mg/kg>600mg/kg>300mg/kg.(4) The results Fulvic Acid (400mg/kg,800mg/kg,1200mg/kg) were sprayed on the jasmine indicated that Fulvic Acid could increased the chlorophyll content of young leaves and catalase activity. The effect of Fulvic Acid of 400mg/kg was the best concentration. The catalase activity of Fulvic Acid (400mg/kg) was higer than Fulvic Acid (800mg/kg,1200mg/kg) during the initial stage. On the blooming stage and after the blooming stage 1200mg/kg Fulvic Acid was the best. There was different content of mass and minim elements of jasmine leaves caused by different concentration of Fulbiv Acid at different growth stages. 400mg/kg Fulvic Acid was better on the blooming. 800mg/kg-1200mg/kg Fulvic Acid was better at the end of bloom stage. Fulvic Acid could promote the growth, increase the weight of bud, the yield and quality. The effect of 800mg/kg Fulvic Acid was the best one, and the 400mg/kg Fulvic Acid was the next one. So the most suitable concentrations were 400mg/kg Fulvic Acid on initial stage and 800mg/kg Fulvic Acid on the blooming stage.