Statistical Methods for Agricultural Workers |
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acre adjusted analysis of variance application arrangement average block design calculated carried cent Chapter characters coefficient column combinations compared comparisons components confounded considerations considered consists correction correlation corresponding crop degrees of freedom deviation differences distribution divided effects efficiency equal equation error estimate example expected experiment experimental expression factors families fertility field figures formula frequencies given gives groups Hence independent individual interaction involved known latin square lattice length levels main plot manure measure method missing namely necessary nitrogen normal observations obtained plants plot population possible practice precision present procedure progenies provides quantity randomized block ratio regression replications represented respectively response sampling seasons seen selection shown significance simple standard error statistical sub-plot sum of squares Table tion treatments trial usual variation varieties various yields zones