Effects Of Different N K Amounts On Nutrient Uptake, Yield And Quality Of Potato

In order to study Heilongjiang Reclamation potato fertilization techniques, test is located inthe administration of JiuSan hongwuyue farm,(1) the effect of potatoes growth and nutrientuptake in different nitrogen levels was that N0=0kg.hm-2, N1=33.75kg.hm-2, N2=67.50kg.hm-2,N3=168.75kg.hm-2, the same amount of P and K fertilizers;(2) the effect of potato growth andnutrient uptake in different amount of potassium was that K0=0kg.hm-2, K1=56.25kg.hm-2,K2=112.50kg.hm-2, K3=56.3kg.hm-2, the same amount of Nitrogen and phosphorus fertilizers.Fertilizer used a single ridge. transplanting one-time applied into fertilizers. The experimentalstudy of different nitrogen and potassium amount to accumulation of potato dry matter, nitrogen,phosphorus, potassium, and the impact on the yield and quality of potatoes, and the resultsshowed that:1. From the point of changes of potato dry matter after potato nitrogen fertilizer, showing adry matter increased with the growth period of delay variation, N2and N3aboveground drymatter accumulation were increased by30.12%and15.45%than N0, underground improve drymatter accumulation of10.06%and1.84%compared with N0, variance analysis showed nosignificant differences in the accumulation of dry N2and N3treatment, significantly higher thanN0treatment，Showed that nitrogen fertilizer to increase the available dry matter accumulationpotato with good results. Potash test results show that with the increase of the amount ofpotassium, potatoes dry matter accumulation showed an increasing trend in which the grounddry weight K2and K3treatment improved42.24%and22.72%compared with K0, respectively,and underground dry weight were increased by43.34%and48.13%, Description potatoes Kfertilizer can better promote the accumulation of dry matter.2. From the production point of view changes, Different Nitrogen N2processing the highestyield, improving30.43%over N0treatment, N3treatment output Secondly, improving20.16%over N0treatment, Showed the nitrogen fertilizer to improve the potato production has a goodpromoting effect, but too much of nitrogen fertilizer on potato increased production showed atrend of decline; Different potassium Fertilizer results show that with the increase of the amountof potash potato production showed an increasing trend, which, K3handle the highest yield,production increased by17.72%compared to K0. Meanwhile, K3processing yield increased by 8.84%compared with the N2nitrogen treatment, showed that the effect of potassium is higherthan the yield of nitrogen.3. From the potato quality point of view, the impact of nitrogen fertilizer on potato starchcontent is not significant, tubers reducing sugar content and protein content with increasingnitrogen rate increases, Vc content with increasing nitrogen rate showed a decreasing trend afterthe first increase, showed that excessive nitrogen is not conducive to the improvement of thequality of potato; applying the same effect on the starch content of potash was not significant,but with the increase of the amount of reducing sugar content of potash decreased, Vc contentincreased, indicating that potash is conducive to the improvement of the quality of potatoes.In summary, under the experimental conditions, increasing potash application has the effectto improve yield and quality of potato.