Abstract
Abstract This study was initiated to evaluate the effect of root inoculum or fractionation of mineral fertilizers on the number of root nodes, growth, and yield of groundnut. A field experiment was carried out in one of the fields located on the right bank of the Euphrates River in the city of Heet, western Iraq, during the summer season of 2022. A randomized complete block design (RCBD) was used with three replications. This study included five combinations of rhizobia inoculum with a percentage of mineral fertilizer as follows: Mineral fertilizer according to the fertilizer recommendation, inoculation with rhizobia bacteria only, rhizobia inoculum with 25% of the mineral fertilizer recommendation rhizobia inoculum with 50% of the mineral fertilizer recommendation, rhizobia inoculum with 75% of the mineral fertilizer recommendation. Rhizobia inoculum was prepared from root cuttings of field pistachio plants grown in pots before starting the field experiment. The results of the experiment showed that inoculation with rhizobium bacteria increased the average number of root nodes in the advanced stages of plant life, while the treatment of 50% mineral fertilization was superior in the early and advanced stages of plant life in the number of root nodes, in addition to its superiority in the number of pods per plant with an average of 123.5 pod-1. Thus, it was possible to replace 50% of the mineral fertilizer, reduce pollution, and save the price of mineral fertilizer.
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Claims 4
Claim · model-written summary
Rhizobium inoculation increased root nodes at advanced growth stages.
- Taxon
- groundnut
Arachis hypogaeat0 - Treatment
- inoculation with rhizobium bacteriae0
- Interactor
- rhizobium bacteriae0symbiont
- Outcome
- average number of root nodese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculation with rhizobium bacteria increased the average number of root nodes in the advanced stages of plant life”
t0“groundnut”
Claim · model-written summary
The 50% mineral fertilization treatment was superior for root node number at early and advanced stages.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- 50% mineral fertilizatione0
- Outcome
- number of root nodese0
- Direction
- superiore0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the treatment of 50% mineral fertilization was superior in the early and advanced stages of plant life in the number of root nodes”
t0“groundnut”
Claim · model-written summary
The 50% mineral fertilization treatment was superior for pods per plant, averaging 123.5 pod-1.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- 50% mineral fertilizatione1
- Outcome
- number of pods per plante0
- Direction
- superioritye0
- Value
- 123.5 pod-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“its superiority in the number of pods per plant with an average of 123.5 pod-1”
e1“the treatment of 50% mineral fertilization was superior”
t0“groundnut”
Claim · model-written summary
The authors conclude that half the mineral fertilizer could be replaced.
- Taxon
- groundnutArachis hypogaeat0
- Outcome
- replace 50% of the mineral fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was possible to replace 50% of the mineral fertilizer”
t0“groundnut”
The same questions in other papers
fertilization · yield · Arachis hypogaea (peanut)Positive and negative results
634 papers in the same direction as this paper · 44 in the opposite direction · 4 reporting no difference from an alternative
- positive
- no effect
- negative
679 papers more in this group
See all 683 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.