Abstract
The influence of irrigation interval and plant population on seed yield, yield components and water use of soybeans was examined. Plant populations of 12,20 and 28 plants m-2 were furrow irrigated at irrigation intervals of 70 mm and 140 mm of estimated evapotranspiration. Although 12 plants m-2 yielded significantly less than 28 plant m-2, plant population had little influence on plant performance or on water use. Any effect was small when compared with the effect of irrigation interval. Highly significant differences were recorded between the two irrigation intervals. Extending the irrigation interval to 140 mm reduced seed yield by 1286 kg ha-1 or 34 per cent. The drop in yield resulted principally from a substantial decrease in the number of pods per plant. There was little effect on protein and oil content of the seed. Crop water use at the 70 mm interval was 786 mm or 75 per cent of pan evaporation. Although the 140 mm interval reduced water use by 15 per cent, production of seed and protein was less efficient. Peak demand for soil moisture coincided with the end of flowering-early pod fill period.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Extending the irrigation interval to 140 mm reduced soybean seed yield by 1286 kg ha-1 or 34 per cent compared with 70 mm.
- Taxon
- soybeans
Glycine maxe0 - Treatment
- irrigation interval to 140 mme2
- Outcome
- seed yielde2
- Direction
- reducede2
- Value
- 1286 kg ha-1 or 34 per cente2
- Comparator
- 70 mme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The influence of irrigation interval and plant population on seed yield, yield components and water use of soybeans was examined”
e1“Plant populations of 12,20 and 28 plants m-2 were furrow irrigated at irrigation intervals of 70 mm and 140 mm of estimated evapotranspiration”
e2“Extending the irrigation interval to 140 mm reduced seed yield by 1286 kg ha-1 or 34 per cent”
Claim · model-written summary
Twelve plants m-2 yielded significantly less than 28 plants m-2 in soybean.
- Taxon
- soybeansGlycine maxe0
- Treatment
- 12 plants m-2e4
- Outcome
- seed yielde0
- Direction
- yielded significantly lesse4
- Comparator
- 28 plant m-2e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The influence of irrigation interval and plant population on seed yield, yield components and water use of soybeans was examined”
e4“Although 12 plants m-2 yielded significantly less than 28 plant m-2, plant population had little influence on plant performance or on water use”
Claim · model-written summary
Plant population had little influence on soybean plant performance or water use.
- Taxon
- soybeansGlycine maxe0
- Treatment
- plant populatione5
- Outcome
- plant performance or on water usee5
- Direction
- had little influencee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The influence of irrigation interval and plant population on seed yield, yield components and water use of soybeans was examined”
e5“plant population had little influence on plant performance or on water use”
Claim · model-written summary
The 140 mm irrigation interval reduced crop water use by 15 per cent.
- Taxon
- soybeansGlycine maxe0
- Treatment
- 140 mm intervale6
- Outcome
- water usee6
- Direction
- reducede6
- Value
- 15 per cente6
- Comparator
- 70 mme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The influence of irrigation interval and plant population on seed yield, yield components and water use of soybeans was examined”
e1“Plant populations of 12,20 and 28 plants m-2 were furrow irrigated at irrigation intervals of 70 mm and 140 mm of estimated evapotranspiration”
e6“Although the 140 mm interval reduced water use by 15 per cent, production of seed and protein was less efficient”
Claim · model-written summary
Production of seed and protein was less efficient at the 140 mm irrigation interval.
- Taxon
- soybeansGlycine maxe0
- Treatment
- 140 mm intervale6
- Outcome
- production of seed and proteine6
- Direction
- less efficiente6
- Comparator
- 70 mme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The influence of irrigation interval and plant population on seed yield, yield components and water use of soybeans was examined”
e1“Plant populations of 12,20 and 28 plants m-2 were furrow irrigated at irrigation intervals of 70 mm and 140 mm of estimated evapotranspiration”
e6“Although the 140 mm interval reduced water use by 15 per cent, production of seed and protein was less efficient”
Claim · model-written summary
Crop water use at the 70 mm irrigation interval was 786 mm, or 75 per cent of pan evaporation, in soybean.
- Taxon
- soybeansGlycine maxe0
- Treatment
- 70 mm intervale7
- Outcome
- crop water usee7
- Value
- 786 mm or 75 per cent of pan evaporatione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The influence of irrigation interval and plant population on seed yield, yield components and water use of soybeans was examined”
e7“Crop water use at the 70 mm interval was 786 mm or 75 per cent of pan evaporation”
Claim · model-written summary
Irrigation interval had little effect on soybean seed protein and oil content.
- Taxon
- soybeansGlycine maxe0
- Outcome
- protein and oil content of the seede5
- Qualifier
- little effecte5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The influence of irrigation interval and plant population on seed yield, yield components and water use of soybeans was examined”
e5“There was little effect on protein and oil content of the seed”
Claim · model-written summary
The yield drop at the 140 mm interval resulted mainly from a decrease in the number of pods per plant in soybean.
- Taxon
- soybeansGlycine maxe0
- Organ / stage
- podse5
- Outcome
- number of pods per plante5
- Direction
- decreasee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The influence of irrigation interval and plant population on seed yield, yield components and water use of soybeans was examined”
e5“The drop in yield resulted principally from a substantial decrease in the number of pods per plant”
Claim · model-written summary
Peak soil moisture demand in soybean coincided with the end of flowering to early pod fill.
- Taxon
- soybeansGlycine maxe0
- Organ / stage
- end of flowering-early pod fill periode6
- Outcome
- peak demand for soil moisturee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The influence of irrigation interval and plant population on seed yield, yield components and water use of soybeans was examined”
e6“Peak demand for soil moisture coincided with the end of flowering-early pod fill period”
The same questions in other papers
irrigation · yield · Glycine max (soybean)Positive and negative results
78 papers in the same direction as this paper · 264 in the opposite direction
- positive
- positive
- positive
339 papers more in this group
See all 343 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.