What is the Effect of Nitrogen fertilizer on yield of potatoes?
on yield and some morphological and physiological characters.
nitogen along with other nutrients is required to increase the biomass of the plant. nitrogen directly helps in accumulation of total protein content in plants, thus it helps in the boosting up of concentration of protein which in turn helps in accumulation of higher photoassimilates. thus higher the phloem loading helps in higher the translocation of sugar to the root as a consequence, incease in the yield of potatoes.
Without doubt Nitrogen fertilisers do increase the yield of potatoes at harvest, there have been many trials proving this. However what is rarely considered is that the storage potential of the potatoes can be significantly reduced, so that the end result can be lower profitability when excessive nitrogen fertiliser is used.
Dear Philip Barlow,
Regards,
Very nice to see your profile. Thank you for very useful answer. By the way, I am proud that I got my PhD degree from School of Biological Sciences, Bangor Univ. in 1989, under supervision Prof. G.Sagar and E.R.B. Oxley. I have no news from them. please let me know their e mails if possible. With Best,
Prof. Dr. Hammad, Iraq
Hi Dr Hammad,
Ralph Oxley Supervised my Honors Project, so we have much in common.
Bethan Wyn Perkins
The above email address is for the person managing Bangor Alumni and I am sure that she should be able to give the email addresses you ask for, I am sorry but I do not have them.
I am a consulting Agronomist and you will be interested that some time ago I lost a Potato grower client because his neighbors were using higher rates of nitrogen 400Kg/Ha N per year (Outrageous amounts) and they were getting greater yields, but the tubers had terrible storage potential. The end result was greatly reduced profit.
Best wishes
Hi Mr. Philip,
Greetings,
Thank you for your reply. Yes it is right in my PhD project in Bangor (1985-1989) I used two dosages from N fertilizer ( low rate 100kg/ha and higher rates of nitrogen 200Kg/Ha) the low rate gave higher sig. potato yield than higher rate.
Great with best wishes
Thank you Barbara for your clear observations.
With Best Regards
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