Claim · model-written summary
None of the 4 negative results showed a yield decrease of as much as 10 per cent.
Verbatim
e0“on the application of a high tension discharge to the growth of field crops”
e1“Of these 18 field experiments with various crops, 14 gave positive results in favour of the electrified plots, while 4 showed negative results, i.e. decreased yields compared with the controls”
e4“Of the 4 negative none shows a decrease of as much as 10 per cent”
Title
Field experiments in electro-culture
V. H. Blackman The Journal of Agricultural Science 1924. doi:10.1017/s0021859600003440
Other claims from this paper (9)
- Intervention effect Electrified plots gave higher yields than controls in 14 of 18 field experiments with various crops.
- Intervention effect Electrification decreased yields compared with controls in 4 of 18 field experiments.
- Intervention effect Only 3 of the 14 positive results showed yield increases of less than 10 per cent.
- Intervention effect 9 of the 14 positive results showed yield increases of 30 per cent or more.
- Observation Ten of the 12 experiments with spring-sown cereals were positive.
- Observation Two of the 12 experiments with spring-sown cereals were negative.
- Intervention effect Electrification increased yield of spring-grown oats and barley by a mean of 22 per cent.
- Intervention effect A beneficial effect of the discharge on clover-hay is probable.
- Intervention effect In several cases electrified field crops showed a deeper green tint than the controls.