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1821
Release of nutrient bases in some acidified Philippine soils [microform]
Published 1977Visual Material -
1822
The influence of soil temperature regimes on the chemical kinetics of flooded soils and the growth of rice [microform]
Published 1977Visual Material -
1823
Growth characteristics, grain yield and quality of rice as affected by plant density and nitrogen level [microform]
Published 1977Visual Material -
1824
Microbiological transformations of nitrogen in flooded maahas clay [microform]
Published 1977Visual Material -
1825
Response of four varieties of soybeans to nitrogen and inoculation [microform]
Published 1977Visual Material -
1826
The estimation of parameters of unsampled strata in a two-way stratified sample [microform]
Published 1977Visual Material -
1827
The use of alphabeticall listed frame in stratified sampling design [microform]
Published 1977Visual Material -
1828
Weight and backfat thickness adjustment factors in growing pigs [microform]
Published 1977Visual Material -
1829
Philippine foreign trade and economic development 1900-1940 [microform]
Published 1977Visual Material -
1830