Possibility of different soil sampling techniques with automated soil sampler
By McGrath,
D.; Skotnikov, A.
From Communications in Soil Science and Plant
Analysis (1996), 27(5-8), 1779-1794.
Soil sampling fields that have received banded fertilizer applications
By: Mahler, R. L.
From Communications in
Soil Science and Plant Analysis (1990), 21(13-16), 1793-802
Soil sampling techniques for the determination of available phosphorus in two soils from northeastern Thailand
By: Topark-Ngarm, Bubpha;
Hughes, J. D.; Aitken, R. L.; Soonthonsorn, Suchon; Horton, I. F.
From Thai Journal of
Agricultural Science (1981), 14(1), 17-25.
Simple random, systematic, and stratified random sampling were compared as sampling techniques for available P detn. in 2 soils of northeastern
Thailand. An index of available P was provided by the amt. of P extd. by
0.005M H2SO4 after 12 h equilibration. Stratified sampling was the most economical with respect to the no. of
chem. analyses required and provided an est. at least as good as that obtained
with simple random sampling. For these soils 10
samples/quarter would represent an adequate sampling
intensity. A sampling practice was recommended
which enabled the mean to be detd. with the least no. of chem. analyses.
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