Abstract
A green house experiment was carried out in two successive seasons on date Palm plantlets (Phoenix dactylifera L. cv. Bartomouda) from 2012 to 2013, to evaluated the effectiveness of different sources of nitrogen fertilizer at four treatments as (T2) 5 g/l ammonium sulfate 20 % (1 g nitrogen), (T3) 3 g/l potassium nitrate 33% (1 g nitrogen) and (T4) 2 g/l urea (46%) with the irrigation water one time/ week.The design of the experiment was randomized complete with three replicates. The results revealed that, plant height cm, leaves numbers, root length cm and numbers, and fresh and dry weights of leaves and roots were increasing highly significantly with 3 g/l of potassium nitrate graduated by 2 g/l urea and 5 g/l ammonium sulfate respectively at both seasons. Chlorophyll a, b and carotenoids contents showed significant rising with 3 g/l potassium nitrate. Greatest significant contents of indole and proline were obtained under T3 for two seasons. Leaves nitrogen content N was increased by 2 g/l urea in the two seasons; on the other hand, root nitrogen content was increased with treatment 3 g/l potassium nitrate, sequenced by T2 and T4 treatments. Leaves and roots phosphorus P content significantly raising under 3g/l potassium nitrate and 5 g/l ammonium sulfate for two seasons. In the presence of 5 g/l ammonium sulfate and 3 g/l potassium nitrate leaves and root potassium content K were largest at two seasons respectively. This research shows that the nitrogen formula as potassium nitrate > ammonium sulfate > urea were recommended to highly increasing growth of date palm plantlets in the green house.
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Claims 10
Claim · model-written summary
Potassium nitrate increased height, leaves, roots, and fresh and dry weights most strongly.
- Taxon
- DATE PALM
Phoenix dactyliferat0 - Material
- Phoenix dactylifera L. cv. Bartomoudat0
- Treatment
- 3 g/l of potassium nitratee0
- Outcome
- plant height cm, leaves numbers, root length cme0
- Direction
- increasinge0
- Qualifier
- at both seasonse0
- Comparator
- 2 g/l urea and 5 g/l ammonium sulfatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height cm, leaves numbers, root length cm and numbers, and fresh and dry weights of leaves and roots were increasing highly significantly with 3 g/l of potassium nitrate graduated by 2 g/l urea and 5 g/l ammonium sulfate respectively at both seasons.”
t0“DATE PALM (Phoenix dactylifera L. cv. Bartomouda)”
Claim · model-written summary
Potassium nitrate significantly raised chlorophyll and carotenoids contents.
- Taxon
- DATE PALMPhoenix dactyliferat0
- Treatment
- 3 g/l potassium nitratee0
- Outcome
- Chlorophyll a, b and carotenoids contentse0
- Direction
- risinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll a, b and carotenoids contents showed significant rising with 3 g/l potassium nitrate.”
t0“DATE PALM (Phoenix dactylifera L. cv. Bartomouda)”
Claim · model-written summary
T3 produced the greatest indole and proline contents across both seasons.
- Taxon
- DATE PALMPhoenix dactyliferat0
- Treatment
- T3e0
- Outcome
- contents of indole and prolinee0
- Direction
- Greateste0
- Qualifier
- for two seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greatest significant contents of indole and proline were obtained under T3 for two seasons.”
t0“DATE PALM (Phoenix dactylifera L. cv. Bartomouda)”
Claim · model-written summary
Urea increased leaf nitrogen content in both seasons.
- Taxon
- DATE PALMPhoenix dactyliferat0
- Treatment
- 2 g/l ureae0
- Outcome
- Leaves nitrogen content Ne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaves nitrogen content N was increased by 2 g/l urea in the two seasons;”
t0“DATE PALM (Phoenix dactylifera L. cv. Bartomouda)”
Claim · model-written summary
Potassium nitrate increased root nitrogen content, ahead of T2 and T4.
- Taxon
- DATE PALMPhoenix dactyliferat0
- Treatment
- 3 g/l potassium nitratee0
- Outcome
- root nitrogen contente0
- Direction
- increasede0
- Comparator
- T2 and T4 treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root nitrogen content was increased with treatment 3 g/l potassium nitrate, sequenced by T2 and T4 treatments.”
t0“DATE PALM (Phoenix dactylifera L. cv. Bartomouda)”
Claim · model-written summary
Potassium nitrate significantly raised leaf and root phosphorus content.
- Taxon
- DATE PALMPhoenix dactyliferat0
- Treatment
- 3g/l potassium nitratee0
- Outcome
- Leaves and roots phosphorus P contente0
- Direction
- raisinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaves and roots phosphorus P content significantly raising under 3g/l potassium nitrate and 5 g/l ammonium sulfate for two seasons.”
t0“DATE PALM (Phoenix dactylifera L. cv. Bartomouda)”
Claim · model-written summary
Ammonium sulfate significantly raised leaf and root phosphorus content.
- Taxon
- DATE PALMPhoenix dactyliferat0
- Treatment
- 5 g/l ammonium sulfatee0
- Outcome
- Leaves and roots phosphorus P contente0
- Direction
- raisinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaves and roots phosphorus P content significantly raising under 3g/l potassium nitrate and 5 g/l ammonium sulfate for two seasons.”
t0“DATE PALM (Phoenix dactylifera L. cv. Bartomouda)”
Claim · model-written summary
Ammonium sulfate produced the largest leaf potassium content.
- Taxon
- DATE PALMPhoenix dactyliferat0
- Treatment
- 5 g/l ammonium sulfatee0
- Outcome
- leaves and root potassium content Ke0
- Direction
- largeste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the presence of 5 g/l ammonium sulfate and 3 g/l potassium nitrate leaves and root potassium content K were largest at two seasons respectively.”
t0“DATE PALM (Phoenix dactylifera L. cv. Bartomouda)”
Claim · model-written summary
Potassium nitrate produced the largest root potassium content.
- Taxon
- DATE PALMPhoenix dactyliferat0
- Treatment
- 3 g/l potassium nitratee0
- Outcome
- root potassium content Ke0
- Direction
- largeste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the presence of 5 g/l ammonium sulfate and 3 g/l potassium nitrate leaves and root potassium content K were largest at two seasons respectively.”
t0“DATE PALM (Phoenix dactylifera L. cv. Bartomouda)”
Claim · model-written summary
The authors recommend potassium nitrate over ammonium sulfate over urea for greenhouse date palm plantlet growth.
- Taxon
- date palmPhoenix dactyliferae0
- Outcome
- potassium nitrate > ammonium sulfate > urea were recommended to highly increasing growthe0
- Setting
- green housee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the nitrogen formula as potassium nitrate > ammonium sulfate > urea were recommended to highly increasing growth of date palm plantlets in the green house.”
The same questions in other papers
potassium nitrate · growth · Phoenix dactylifera (date palm)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
nitrogen · nutrient: content · Phoenix dactylifera (date palm)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
3 papers more in this group
See all 7 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.