Effects Of Combined Application Of N,P And K On The Growth,yield And Quality Of Paris Polyphylla Var.chinensis(Franch.) Hara.

Paris polyphylla Smith var.chinensis?Franch.?Hara.is one of the species included in the 2015 edition of the Chinese Pharmacopoeia,which has the functions of clearing heat and detoxifying,reducing swelling and pain,cooling the liver,and astonishing the scars.It is used to treat scabies,swollen throats,sore throats,snake bites and falls Pain and convulsions are one of the important raw materials of many Chinese patent medicines such as Yunnan Baiyao,antiviral particles and Gongxuening capsules.Paris polyphylla Smith var.chinensis?Franch.?Hara.has high requirements for the growth environment,and its seeds have a low natural germination rate and slow growth.At present,due to the increasing market demand for heavy buildings,the excessive exploitation of wild resources and the slow regeneration of resources,the Paris polyphylla Smith var.chinensis?Franch.?Hara.resource is increasingly endangered,and it is urgent to carry out research on Paris polyphylla Smith var.chinensis?Franch.?Hara.standardized planting.This test uses a three-factor five-level quadratic regression universal rotation combination design method.Through the study of the effects of different proportions of N,P,and K application on the growth,development,yield,quality,and inorganic elements of Paris polyphylla Smith var.chinensis?Franch.?Hara.,it is determined that Paris polyphylla Smith var.chinensis?Franch.?Hara.is high-yield and high-quality The best fertilization plan is to realize the reduction and efficiency of Paris polyphylla Smith var.chinensis?Franch.?Hara.plant fertilizer application,and provide scientific basis for Paris polyphylla Smith var.chinensis?Franch.?Hara.special formula fertilizer and its reasonable application.The main research conclusions are as follows:?1?Based on the literature review,field visits,and field experience of artificial cultivation in the past three years,a ternary quadratic regression universal rotation combination test was used to design the N,P,and K combination application scheme of Paris polyphylla Smith var.chinensis?Franch.?Hara..?2?N,P,K combined application can promote the growth and development of Paris polyphylla Smith var.chinensis?Franch.?Hara..Establish regression equations between N,P,K and Paris polyphylla Smith var.chinensis?Franch.?Hara.plant height,leaf area,rhizome thickness,number of whiskers,and longest whisker length reached significant levels;the application of N,P was at the level of 1.6818,and the application of K was at-1.6816 or The level of 1.6818 is beneficial to promote the increase of Paris polyphylla Smith var.chinensis?Franch.?Hara.plant height;the application of N is at the level of-1.6818;the application of P and K is at the level of-1.6816 or 1.6818;it is beneficial to the increase of the leaf area of Paris polyphylla Smith var.chinensis?Franch.?Hara.;It is beneficial to promote the thick increase of Paris polyphylla Smith var.chinensis?Franch.?Hara.rhizomes;the application of N,P,and K fertilizers at the level of 1.6818 is beneficial to the increase of the number of roots of Paris polyphylla Smith var.chinensis?Franch.?Hara.flower;increase.The best fertilization amount for A growth and development was:N:32.90 kg?hm^-2,P:168.18 kg?hm^-2,K:29.68kg?hm^-2.?3?The combined application of N,P,and K can effectively increase the Paris polyphylla Smith var.chinensis?Franch.?Hara.yield?weight gain rate?.The order of the influence of each factor on the weight gain rate of Paris polyphylla Smith var.chinensis?Franch.?Hara.rhizome was P>N>K.When N:41.66-52.60 kg?hm^-2,P:181.38-244.38 kg?hm^-2,K:24.16-35.20 kg?hm^-2,the weight gain rate of Paris polyphylla Smith var.chinensis?Franch.?Hara.was more than 81.72%.?4?Combined application of N,P,and K can effectively improve Paris polyphylla Smith var.chinensis?Franch.?Hara.quality.The established regression equations all reached significant levels;when N:45.48-53.83 kg?hm^-2,P:179.98-236.83 kg?hm^-2,K:29.80-39.95 kg?hm^-2,the total saponin content in Paris polyphylla Smith var.chinensis?Franch.?Hara.Greater than 11.09%;when N:28.01-37.79 kg?hm^-2,P:127.18-209.18 kg?hm^-2,K:25-27-34.09 kg?hm^-2,the extractable content in Paris polyphylla Smith var.chinensis?Franch.?Hara.is greater than 14.31%;When N:37.01-47.54 kg?hm^-2,P:169.48-225.08 kg?hm^-2,K:34.87-44.06kg?hm^-2,the content of VII is greater than 0.20%;when N:34.43-44.90 kg?hm^-2,P:184.79-243.28 kg?hm^-2,K:30.77-41.63 kg?hm^-2,the VI content is greater than0.09%.?5?The combined application of N,P,and K has certain effects on the contents of V,Cr,Mn,Cu,Zn,and Mo in Paris polyphylla Smith var.chinensis?Franch.?Hara..The established regression equations reached significant levels;N at-1.6818,and P and K at 0 levels combined with N,P,and K could significantly increase the V element content;N,P,and K at 1.6818 levels of N,P,and K.Application of energy can significantly increase the content of Cr,Cu,and Zn;N at-1.6818,and P and K at1.6818,N,P,and K can significantly increase the content of Mn;N at-1.6818,and P and K at 1.6818 The combined application of N,P,and K can significantly increase the content of Mo.In summary,the effects of N,P,and K combined application on Paris polyphylla Smith var.chinensis?Franch.?Hara.quality index are different.The combined application of N,P,and K has a certain effect on the growth and development,production,quality,and inorganic elements of Paris polyphylla Smith var.chinensis?Franch.?Hara..Combined with the frequency statistics method to comprehensively consider the indicators of sample Paris polyphylla Smith var.chinensis?Franch.?Hara.,the best combination of N,P,and K with high quality and high yield is:N:44.66-44.90 kg?hm^-2,P:184.79-209.18 kg?hm^-2,K:34.87-35.20 kg?hm^-2.