Abstract
ABSTRACT Nitrogen fertilizer and irrigation methods are the key factors for yield increase and yield quality improvement. With good management of these two factors, both production and protection can be attained simultaneously. Field experiments were carried out at Hama (Tezeen's Irrigation Research Station) for four consecutive years (1995–1998). Cotton (Gossypium hirsutum L variety Aleppo 33/1) was planted after unfertilized maize on the same experimental units and then irrigated. Treatments consisted of surface irrigation and drip fertigation with five nitrogen rates (0, 60, 120, 180, 240 kg N ha−1), while for the surface-irrigated cotton only one rate was applied (180 kg N ha−1) as recommended by the Ministry of Agriculture and Agrarian Reform. Soil water content was monitored during the course of this experiment using a neutron probe, with irrigation scheduling according to the neutron probe feedback data. The experimental design was randomized black design with six replicates. Results revealed that under the prevailing experimental conditions, fertigation of cotton improved seed cotton yield, dry matter yield, earliness and, in some cases, lint properties. Furthermore, under drip fertigation between 35–55% of irrigation water was saved compared with surface-irrigated cotton grown under the same conditions. Seed cotton yield of the fertigated-cotton increased by more than 50% in some cases compared with that of the surface-irrigated cotton. Dry matter yield of the fertigated-cotton increased significantly over that of the surface irrigated cotton, and such an increase was even more than two-fold in some instances.
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 7
Claim · model-written summary
Fertigation improved seed cotton yield.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- fertigatione0
- Outcome
- seed cotton yielde0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertigation of cotton improved seed cotton yield”
t0“cotton crop grown”
Claim · model-written summary
Fertigation improved dry matter yield.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- fertigatione0
- Outcome
- dry matter yielde0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertigation of cotton improved seed cotton yield, dry matter yield”
t0“cotton crop grown”
Claim · model-written summary
Fertigation improved cotton earliness.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- fertigatione0
- Outcome
- earlinesse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertigation of cotton improved seed cotton yield, dry matter yield, earliness”
Claim · model-written summary
Fertigation improved cotton lint properties in some cases.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- fertigatione0
- Outcome
- lint propertiese0
- Direction
- improvede0
- Qualifier
- in some casese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertigation of cotton improved seed cotton yield, dry matter yield, earliness and, in some cases, lint properties”
Claim · model-written summary
Drip fertigation saved 35–55% of irrigation water compared with surface irrigation.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- drip fertigatione0
- Outcome
- irrigation watere0
- Direction
- savede0
- Value
- 35–55%e0
- Comparator
- surface-irrigated cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under drip fertigation between 35–55% of irrigation water was saved compared with surface-irrigated cotton grown under the same conditions”
Claim · model-written summary
Fertigated cotton seed yield rose by more than 50% in some cases compared with surface irrigation.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- fertigated-cottone0
- Outcome
- Seed cotton yielde0
- Direction
- increasede0
- Value
- more than 50%e0
- Comparator
- surface-irrigated cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed cotton yield of the fertigated-cotton increased by more than 50% in some cases compared with that of the surface-irrigated cotton”
Claim · model-written summary
Fertigated cotton dry matter yield increased significantly over surface irrigation, sometimes more than twofold.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- fertigated-cottone0
- Outcome
- Dry matter yielde0
- Direction
- increasede0
- Value
- more than two-folde0
- Comparator
- surface irrigated cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry matter yield of the fertigated-cotton increased significantly over that of the surface irrigated cotton, and such an increase was even more than two-fold in some instances”
The same questions in other papers
fertilization · physiology: water · Gossypium hirsutum (cotton)Positive and negative results
13 papers in the same direction as this paper · 3 in the opposite direction
- positive
- no effect
- no effect
13 papers more in this group
See all 17 papers →fertilization · phenology · Gossypium hirsutum (cotton)Positive and negative results
14 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- negative
14 papers more in this group
See all 18 papers →irrigation · physiology: water · Gossypium hirsutum (cotton)Positive and negative results
109 papers in the same direction as this paper · 20 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- positive
127 papers more in this group
See all 131 papers →fertilization · yield · Gossypium hirsutum (cotton)Positive and negative results
496 papers in the same direction as this paper · 47 in the opposite direction · 6 reporting no difference from an alternative
- positive
- positive
- positive
546 papers more in this group
See all 550 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.