Abstract
Abstract Field experiments were conducted at Agricultural Experimental Farm, Giridih, Jharkhand, during the kharif (wet) seasons of consecutive four years (1998–2001) to study the effect of staggered seeding of blackgram ( Phaseolus mungo L.) in rice field as a cereal–legume intercropping system and to minimize the degree of competition between the crop species to avoid yield damage, and at the same time to create a high level of competition by the intercrops to suppress the weeds. Intercropping systems were assessed on the basis of land equivalent ratio, relative crowding coefficient, aggressivity, actual yield loss, monetary advantage, etc. Intercropping reduced the yield of component crops when compared with respective pure stands. However, deferred seeding of blackgram in rice (30 cm) after one weeding was most remunerative system and registered maximum rice‐equivalent yield (2711 kg ha −1 ). Rice–blackgram (20 cm) intercropping system was very effective for weed smothering among unweeded intercropping treatments. In conclusion, deferred seeding of blackgram in rice field (30 cm) with one weeding may be recommended for better yield, weed suppression and better economics in the eastern plateau region of India.
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Claims 4
Claim · model-written summary
Intercropping reduced component crop yields relative to pure stands.
Verbatim
e0“Intercropping reduced the yield of component crops when compared with respective pure stands.”
Claim · model-written summary
Deferred blackgram seeding after one weeding produced the most remunerative system and maximum rice-equivalent yield of 2711 kg ha −1.
- Taxon
- blackgram
Vigna mungoe0 - Treatment
- deferred seeding of blackgram in rice (30 cm) after one weedinge0
- Outcome
- rice‐equivalent yielde0
- Direction
- maximume0
- Value
- 2711 kg ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“deferred seeding of blackgram in rice (30 cm) after one weeding was most remunerative system and registered maximum rice‐equivalent yield (2711 kg ha −1 )”
Claim · model-written summary
Rice-blackgram intercropping at 20 cm smothered weeds effectively among unweeded treatments.
- Taxon
- Rice–blackgramVigna mungo
Oryza sativae0 - Treatment
- Rice–blackgram (20 cm) intercropping systeme0
- Outcome
- weed smotheringe0
- Direction
- very effectivee0
- Comparator
- unweeded intercropping treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice–blackgram (20 cm) intercropping system was very effective for weed smothering among unweeded intercropping treatments.”
Claim · model-written summary
The authors recommend deferred blackgram seeding at 30 cm with one weeding for yield, weed suppression and economics.
- Taxon
- blackgramVigna mungoe0
- Outcome
- deferred seeding of blackgram in rice field (30 cm) with one weedinge0
- Setting
- eastern plateau region of Indiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“deferred seeding of blackgram in rice field (30 cm) with one weeding may be recommended for better yield, weed suppression and better economics in the eastern plateau region of India.”
The same questions in other papers
intercropping · weed · Oryza sativa (rice)Results agree
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- positive
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See all 11 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.