Fertilizer special for platycodon grandiflorum and fertilizing method thereof

Abstract

The invention discloses a fertilizing method of a fertilizer special for platycodon grandiflorum. The fertilizing amount is that N is 425.9-434.5kg / hm<2>, P2O5 is 141.37-144.22kg / hm<2>, K2O is 80.55-82.17kg / hm<2>, MnSO4 is 6.42-7.1kg / hm<2>, and ZnSO4 is 4.38-4.84kg / hm<2>. Two fertilizing processes including base fertilizer fertilizing and topdressing are carried out, the base fertilizer fertilizing uses 20% of N using amount, 100% of P2O5 using amount, 30% K2O using amount, 50% of MnSO4 using amount and 50% of ZnSO4 using amount, and topdressing uses 80% of N using amount, 70% of K2O using amount, 50% of MnSO4 using amount and 50% of ZnSO4 using amount. Yield of the platycodon grandiflorum increases 22.6-26.3% through optimization of major elements and microelements, and the production value improves 32.7-42.9%.

Description

technical field [0001] The invention relates to the field of bellflower planting, in particular to a special fertilizer for bellflower and a fertilization method thereof. Background technique [0002] Bellflower ( Platycodon grandiflorum A.DC.) is the dried root of the perennial herb of Campanulaceae. It is one of the 40 most sold traditional Chinese medicinal materials in my country. It is flat in nature, bitter in taste, and pungent. Efficacy of evacuating pus and eliminating carbuncle. Modern studies have shown that platycodon grandiflorum also has a wide range of pharmacological activities such as lowering blood pressure, dilating blood vessels, lowering blood sugar, anti-cholinergic, anti-allergic, anti-tumor and improving immunity, so it is widely used in various prescriptions and clinics. While Platycodon grandiflorum is used as medicine in China, Japan and Korea, it is also eaten in large quantities in China, North Korea and South Korea, and it is also used as horti...

AI Technical Summary

Problems solved by technology

At present, it is still impossible to determine the optimal amount, optimal ratio and optimal application date of chemical fertilizers based on the growth and development of bellflowers and the content of nutrient elements in the soil.