Comparison Of Main Potato Varieties And Analysis Of Formula Fertilization In North Region Of Shanxi

Shanxi is the traditional planting area of potato,especially in the north region having the large difference temperature between day and night,the sufficient sunshine.In order to make full use of the local climate advantage,this experiment selected the potato which was suitable to plant in the north region.And the experiment cleared the best fertilization proportion so that obtained good quality and high field potatoes.The experiment selected twelve potato varieties as research materials,including Jinshu No.16,Netherland No.15,Jizhangshu No.8,Jizhangshu No.12,Qingshu No.9,Qingshu No.10,Longshu No.7,Longshu No.10,Longshu No.13,Kexin No.306,Xingjia No.16 and Xisen No.6 etc.were used to screen out the optimum varieties in the north region to plant.And then,by comparing the difference of agronomic traits,yield traits in different treatments and clearing the best fertility ratio of Jinshu No.16.The main results are as follow:Using 12 potato varieties as research materials,the experiment was based on the indicators of potato agronomic traits,type traits,yield and quality traits to analyze and compare.The results showed that Jinshu16 was excellent in potato type,yield and quality traits,and it was suitable to plant in the north region.Therefore,it can be used to product and demonstrate.Using the selected potato variety as research materials,the experiment used orthogonal design and analyzed the difference of agronomic traits and yield traits in potato under different fertilization combinations.The experiment can be concluded that the optimal fertilization ratio of Jinshu No.16 is N:9.2 kg / 667 m2;P2O5:1.56 kg / 667 m2;K2O:6 kg / 667 m2.Through the range analysis of orthogonal design,it can be observed that the application of N,P,K had a certain effects on the growth of potato plants,the tuber number,tuber weight of potato,and the commercial rate and yield of potato.Among them,the effects on potato height,tuber number per plant,tuber weight and yield were: N > P > K,and the results were the best in the N2P2K2 level of fertilizer compounds.The formula fertilization of Jinshu No.16 will help increase potato yield and optimize quality,meanwhile it will also provide a research basis for precise fertilization of potatoes.