 | Agriculture - 1889 - 934 pages
...slight change in surroundings to produce germination is always a menace. If soil is to be used, however, whether obtained from near-by fields or shipped long...be clear that the soil is free from the objections mentioned above." (2) Pure cultures of the proper bacteria may be used. The Bureau of Plant Industry... | |
 | 1905 - 582 pages
...change in surroundings to produce germination is always a menace. If soil ° is to be used, however, whether obtained from near-by fields or shipped long...be clear that the soil is free from the objections mentioned above. o The amount of soil from a thoroughly inoculated field regarded as sufficient for... | |
 | United States. Bureau of Plant Industry - Agriculture - 1906 - 854 pages
...slight change in surroundings to produce germination is always a menace. If soil is to be used, however, whether obtained from near-by fields or shipped long distances, the evidence should he clear that the soil is free from the objections mentioned above.6 (2) Pure cultures of the proper... | |
 | 1907 - 1040 pages
...change in surroundings to produce germination is always a menace. If soil" is to be used, however, whether obtained from near-by fields or shipped long...be clear that the soil is free from the objections mentioned above. EESULTS OF COOPEEATIVE FIELD TESTS. The results of cooperative experiments with planters... | |
 | George Frederick Mitchell - Tea - 1908 - 768 pages
...change in surroundings to produce germination is always a menace. If soil ° is to be used, however, whether obtained from near-by fields or shipped long...be clear that the soil is free from the objections mentioned above. RESULTS OF COOPERATIVE FIELD TESTS. The results of cooperative experiments with planters... | |
 | geo. wm. hill - 1908 - 782 pages
...change in surroundings to produce germination is always a menace. If soil 0 is to be used, however, whether obtained from near-by fields or shipped long...be clear that the soil is free from the objections mentioned above. RESULTS OF COOPERATIVE FIELD TESTS. The results of cooperative experiments with planters... | |
 | William Hill - 1908 - 758 pages
...change in surroundings to produce germination is always a menace. If soil ° is to be used, however, whether obtained from near-by fields or shipped long...be clear that the soil is free from the objections mentioned above. RESULTS OF COOPERATIVE FIELD TESTS. The results of cooperative experiments witli planters... | |
 | Oregon State University. Agricultural Experiment Station - Agriculture - 1902 - 758 pages
...slight change in surroundings to produce germination is always a menace. If soil is to be used, however, whether obtained from near-by fields or shipped long...be clear that the soil is free from the objections mentioned above, f (2) Pure cultures of the proper bacteria may be used, The Bureau of Plant Industry... | |
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... and insect pests through this plan of inoculating by means of natural soils. Even though weeds may not have been serious in the first field, the great number of dormant seeds requiring but a slight change in surroundings to produce germination is... 