Abstract
The aim of the present study was to evaluate the effects of nitrogen source applied by fertigation to an enriched soil with organic compost on plant growth, mineral nutrition, and phytochemical contents in two successive harvests in coriander. The treatments were as follows: unfertilized soil, soil enriched with organic compost, and soil enriched with organic compost to which 60 kg N ha−1 as ammonium nitrate and as ammonium sulfate applied by fertigation were added. Ammonium nitrate addition allowed to obtain a high total fresh yield (3.6 kg m−2) with a low inorganic nitrogen input. Ammonium nitrate increased plant shoot dry weight; fresh yield; and shoot N, K, and Ca uptake in the first harvest. Ammonium nitrate relative to organic compost and to ammonium sulfate increased fresh yield by approximately 57 and 25%, respectively. However, ammonium sulfate in the first harvest greatly increased shoot total phenols, from 137 mgGAE/100 g FW in ammonium nitrate to 280.4 mgGAE/100 g FW. Coriander’s fresh yield, in the second harvest, was unaffected by nitrogen addition. However, ammonium nitrate increased shoot total phenols and FRAP activity. Overall, the shoot phytochemical accumulation in the second harvest was lower than in the first. The combined application of ammonium nitrate and organic compost is a strategy to reduce inorganic nitrogen application.
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Claims 10
Claim · model-written summary
Ammonium nitrate addition gave a high total fresh yield of 3.6 kg m−2 with a low inorganic nitrogen input.
- Taxon
- coriander
Coriandrum sativume0 - Treatment
- Ammonium nitrate additione1
- Outcome
- total fresh yielde1
- Direction
- highe1
- Value
- 3.6 kg m−2e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two successive harvests in coriander”
e1“Ammonium nitrate addition allowed to obtain a high total fresh yield (3.6 kg m−2) with a low inorganic nitrogen input”
Claim · model-written summary
Ammonium nitrate increased plant shoot dry weight and fresh yield in the first harvest.
- Taxon
- corianderCoriandrum sativume0
- Treatment
- Ammonium nitratee2
- Outcome
- plant shoot dry weight; fresh yielde2
- Direction
- increasede2
- Qualifier
- first harveste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two successive harvests in coriander”
e2“Ammonium nitrate increased plant shoot dry weight; fresh yield; and shoot N, K, and Ca uptake in the first harvest”
Claim · model-written summary
Ammonium nitrate increased shoot N, K and Ca uptake in the first harvest.
- Taxon
- corianderCoriandrum sativume0
- Treatment
- Ammonium nitratee2
- Outcome
- shoot N, K, and Ca uptakee2
- Direction
- increasede2
- Qualifier
- first harveste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two successive harvests in coriander”
e2“Ammonium nitrate increased plant shoot dry weight; fresh yield; and shoot N, K, and Ca uptake in the first harvest”
Claim · model-written summary
Ammonium nitrate increased fresh yield by approximately 57 relative to organic compost.
- Taxon
- corianderCoriandrum sativume0
- Treatment
- Ammonium nitratee3
- Outcome
- fresh yielde3
- Direction
- increasede3
- Value
- approximately 57e3
- Comparator
- organic composte3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two successive harvests in coriander”
e3“Ammonium nitrate relative to organic compost and to ammonium sulfate increased fresh yield by approximately 57 and 25%, respectively”
Claim · model-written summary
Ammonium nitrate increased fresh yield by 25 percent relative to ammonium sulfate.
- Taxon
- corianderCoriandrum sativume0
- Treatment
- Ammonium nitratee3
- Outcome
- fresh yielde3
- Direction
- increasede3
- Value
- 25%e3
- Comparator
- ammonium sulfatee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two successive harvests in coriander”
e3“Ammonium nitrate relative to organic compost and to ammonium sulfate increased fresh yield by approximately 57 and 25%, respectively”
Claim · model-written summary
Ammonium sulfate greatly increased shoot total phenols in the first harvest, to 280.4 mgGAE/100 g FW from 137 mgGAE/100 g FW under ammonium nitrate.
- Taxon
- corianderCoriandrum sativume0
- Treatment
- ammonium sulfatee4
- Outcome
- shoot total phenolse4
- Direction
- increasede4
- Value
- 280.4 mgGAE/100 g FWe4
- Qualifier
- first harveste4
- Comparator
- ammonium nitratee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two successive harvests in coriander”
e4“ammonium sulfate in the first harvest greatly increased shoot total phenols, from 137 mgGAE/100 g FW in ammonium nitrate to 280.4 mgGAE/100 g FW”
Claim · model-written summary
Fresh yield of coriander in the second harvest was unaffected by nitrogen addition.
- Taxon
- CorianderCoriandrum sativume5
- Treatment
- nitrogen additione5
- Outcome
- fresh yielde5
- Direction
- unaffectede5
- Qualifier
- second harveste5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two successive harvests in coriander”
e5“Coriander’s fresh yield, in the second harvest, was unaffected by nitrogen addition”
Claim · model-written summary
Ammonium nitrate increased shoot total phenols and FRAP activity.
- Taxon
- corianderCoriandrum sativume0
- Treatment
- ammonium nitratee6
- Outcome
- shoot total phenols and FRAP activitye6
- Direction
- increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two successive harvests in coriander”
e6“However, ammonium nitrate increased shoot total phenols and FRAP activity”
Claim · model-written summary
Shoot phytochemical accumulation in the second harvest was lower than in the first harvest.
- Taxon
- corianderCoriandrum sativume0
- Outcome
- shoot phytochemical accumulatione7
- Direction
- lowere7
- Qualifier
- second harveste7
- Comparator
- the firste7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two successive harvests in coriander”
e7“Overall, the shoot phytochemical accumulation in the second harvest was lower than in the first”
Claim · model-written summary
Combined ammonium nitrate and organic compost is a strategy to reduce inorganic nitrogen application.
- Taxon
- corianderCoriandrum sativume0
- Outcome
- reduce inorganic nitrogen applicatione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two successive harvests in coriander”
e7“The combined application of ammonium nitrate and organic compost is a strategy to reduce inorganic nitrogen application”
The same questions in other papers
nitrogen · yield · Coriandrum sativum (coriander)Positive and negative results
2 papers in the same direction as this paper · 31 in the opposite direction
- positive
- positive
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See all 34 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.