The Effects Of Fertilization On Uptake And Distribution Of S, Ca, Mg And Yield And Quality Of Potato

The testing material was zihuabai, Longshu No.3 and Atlantic combined with the methods of field experiment,chemical analysis and biological statistic, we have studied nutrient absorption, distribution of S,Ca,Mg and effects of fertilization on nutrient,quality of potato. The results show:1.The experiment has demonstrated that S content was zihuabai>Longshu No.3.>.Atlantic,while the Ca,Mg content was Atlantic>Longshu No.3> zihuabai in whole plant.In the tuber the S content was zihuabai>Atlantic>Longshu No.3,while the Ca,Mg content was zihuabai>Longshu No.3>Atlanticin.The different fertilization treatments effect of increasing content of S,Ca,Mg is M+NP>M>NP>CK.2.In whole plant the S absorpting was Longshr No.3>zihuabai > Atlantic,and the Ca absorption was Atlantic> Longshr No.3 > zhuabai,while the Mg aborption was Longshr No.3 > Atlantic >zihuabai .In the tuber the S,Mg absorption was zihuabai> Longshr No.3 > Atlantic,while the Ca was Atlantic>zihuabai>Longshu No.3.The different fertilization effect of increasing absorption of S, Ca, Mg is M+NP>M>NP>CK.Comparison of the three running efficiency of S, Ca, Mg showed that Atlanticzihuabai>Atlantic>Longshu No.3 in mature period.The mixed applying of organic,nitrogenous and phosphate fertilizer which could improve running efficifncy of S, Ca, Mg.3.The test identifide that the three varieties,produced per1000kg,required S,Mg proportion was Longshr No.3> Atlantic>zihuabai,while the Ca was zhuabai >Atlantic> Longshr No.3 in mature period.The diffirent fertilization effect of increasing produced per1000,required of S, Ca, Mg was M+NP>M>NP>CK.4.Comparison of the three varieties,dry matter accumlation and yield showed that Longshu No.3>zihuabai> Atlantic in Mature period.The fertilizer effect of increasing dry matter accumlation and yield is M+NPï¹¥Mï¹¥NPï¹¥CK.5.Comparison of the three varities,the tarch content Longshu No.3 > Atlantic>zihuabai.The differenr ferrilization effecr of tarch content was M+NP>M>NP>CK.The crude protein content was zihuabai>Longshu No.3>Atlantic.The different fertilization effect of crude protein content was M+NP>NP >M >CK.