Abstract
1) With a view to illustrate the yield of various food crops obtained by the Japanese agricultural technique, at its highest level, the author collected the yield records of them from all the Prefectural Agricultural Experiment Stations in Japan. Fluctuation curves of the yield from unit area of many crops, such as; paddy rice, upland rice, barley, naked barley, wheat, barley for brewing, sweet potato, white potato, corn, foxtail millet, barnyard millet, proso millet, buckwheat, soybean, azuki bean, peanut, repereed and sesame, were studied. 2) By comparing the fluctuation in the yield of each crop by variety tests at every Prefectural Agricultural Experiment Station, the author considers that he call illustrate the sum of ycarly fluctuation, local fluctuation and varietal fluctuation of the crop concerned. 3) Every crop has its own fluctuation curve, which is a normal monomodal symmetric one. 4) From his point of view of Japanese agriculture as an occupation work the author illustrates the per-tan yield in calories, and from his point of viwew of Japanese agriculture as an enterprise work he illustrates the per-tan yield as monetary income, and also in protein, in starch or in oil and fat products. 5) By illustrating the per-tan-calory yield of sweet potato and that of paddy rice in the records of varietal yield tests at every Prefectural Agricultural Experiment Station and those in the governmental statistics, the author demonstrated the fact that the superiority of the sweet potato as a heavy yielder crop may only be local. We must submit after all to the conviction that the best is the fittest
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Claims 4
Claim · model-written summary
Each Japanese food crop has its own yield fluctuation curve, which is normal, monomodal and symmetric.
Verbatim
t0“Studies on the Yielding Efficiency of Food Crops in Japan”
e1“Every crop has its own fluctuation curve, which is a normal monomodal symmetric one”
Claim · model-written summary
Comparing variety tests across prefectural stations can separate yearly, local and varietal yield fluctuation of a crop.
Verbatim
t0“Studies on the Yielding Efficiency of Food Crops in Japan”
e2“By comparing the fluctuation in the yield of each crop by variety tests at every Prefectural Agricultural Experiment Station”
e3“varietal fluctuation of the crop concerned”
Claim · model-written summary
Per-tan yield of Japanese food crops is illustrated in calories.
Verbatim
t0“Studies on the Yielding Efficiency of Food Crops in Japan”
e4“the author illustrates the per-tan yield in calories”
Claim · model-written summary
The superiority of sweet potato as a heavy yielder crop over paddy rice in per-tan calorie yield may be only local.
- Taxon
- sweet potato
_Flower.jpg?width=60)
Ipomoea batatase5 - Outcome
- superiority of the sweet potato as a heavy yielder crope5
- Qualifier
- may only be locale5
- Comparator
- paddy ricee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
t0“Studies on the Yielding Efficiency of Food Crops in Japan”
e5“the superiority of the sweet potato as a heavy yielder crop may only be local”
e6“By illustrating the per-tan-calory yield of sweet potato and that of paddy rice”