Many organization told that 4 samples, another 08 samples.....like that every agency have their on number during soil testing. My question is that Ideally, how many soil samples should take from one hectare during soil testing.
You know, the number of soil samples from one hectare may depend on the landscape characteristics (plain, slope) and also on the next cultivated crop. I am sure the number should be different when next crop is wheat or some kinds of vegetable for example. And another number of samples should be taken from orchards.
Sorry, to define the ideally number of soil samples from one hectare is to complicated. That is my opinion
Dr Dotaniya; I have attached a title of a Canadian Manual that contains standard protocols. It may contain what you need. Best regards, Jim Des Lauriers
Soil Sampling and Methods of Analysis
Second Edition
Edited by
M.R. Carter E.G. Gregorich
You can get it by searching Google Scholar or do a RG search
Sir as far as i know it mainly depends on irrigated or non non irrigated land. we may take 1 sample from 10 ha in case of non irrigated and 4 samples from 10 ha land in case of irrigated. and yes of-course the cropping pattern, and the topography matters . but generally things like this does not change within a particular area like a village or gram panchayat. In govt. soil test scheme they prefer this.
Dr Dotaniya,
Sampling should be done on grids situated at a distance of 325x325 meter for rainfed agriculture. I am agreed with opinion of Dr Arpita.
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