Nutrient Absorption,Distribution And Effects Of Fertilization On Nutrient,Quality Of Potato

The studied material was purple and white, through the field experiment, chemical analysis and biological statistic methods, we have studied nutrient absorption, distribution and effects of fertilization on nutrient,quality of potato, the effects of zinc, selenium fertilizer on Zn,Se absorption and distribution in potato.The main results are follows: The content of N, P, K, S, Ca, Mg, Fe, Mn, Cu, Zn at different growth periods in potato, the patterns of nutrient absorption ,accumulation and distribution in potato, established the dynamic models of 10 nutrients, the fastest uptake rate and appear time of 10 nutrients were simulated, the amount of absorption to produce 1000Kg tuber and the consumption coefficients and productivity of 10 nutrients were expounded; Through the analysis in the effects of stable manure,NP fertilizer and their interaction on yield, proteins, P, K, S, Ca, Mg, Fe, Mn, Cu, Zn in potato tuber, coordinative applying manure and NP fertilizer is the critical technique to get high yield and quality potato; Ascertained the effects of zinc, selenium fertilizer on content, absorption, accumulation and distribution of Zn, Se at different growth periods in different organ,established the dynamic models of Zn, Se uptake amount under different zinc and selemiun fertilizer, the effects of zinc, selemiun fertilizer on yield and qualitity in potato tuber were expounded, ascertained rational fertilize Zn, Se in seminal fertilization are effective way that can produce hige Zn, Se potato.The upward results, expect will provid scientific and technique basis for high quantity and high quality potato.