Abstract
Two field trials were conducted at El-Serw Agricultural Research Station, Dammietta governorate through summer season 2006 and 2007, to study the effect of organic matter as compost (20 m3.fed-1), N-biofertilization (cyanobacteria Azospirillum, Bacillus inoculations and mix with previous inoculations) and mineral nitrogen applications (20, 40 and 60 kg-N.fed-1) on rice grain and straw yield, N, P and K uptake and nitrogen use efficiency for rice crop (Oryza sativa), variety Giza 178. The results showed that rice grain and straw yield and N, P and K-uptake in grain and straw increasing with use of nitrogen fertilizer rates up to 60 kg N / fed, while decreasing values of nitrogen use efficiency for rice crop. As well as the results showed that blue-green algae, a mixture of bio-fertilizers, Azospirillum, and Bacillus inoculations, respectively gave the highest values of the previous parameters except the NUE, where the order of values was upward with the order of the previous inoculations. Also, the results showed that the use of organic matter as a compost gave the highest values of the previous parameters and lowest values of NUE for rice crop. Organic matter + Blue green algae inoculation + 60 kg N.fed-1 gave high rice grain and straw yield and nutrients uptake and gave the lowest N-use efficiency. Also, applying organic matter + BGA or mix or Azospirillum inoculation could produce economic rice grain yield when it combined with third dose of the recommend mineral nitrogen (20 kg-N.fed-1), and in the same time, this treatment gave high nitrogen use efficiency, and thus save on mineral nitrogen fertilization, which may lose when applying the full recommended dose, and conserve environment by reducing pollution hazards.
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Claims 11
Claim · model-written summary
Increasing nitrogen fertilizer to 60 kg N per fed increased rice grain and straw yields.
- Taxon
- Oryza sativa
Oryza sativae2 - Treatment
- nitrogen fertilizer rates up to 60 kg N / fede0
- Outcome
- rice grain and straw yielde0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice grain and straw yield and N, P and K-uptake in grain and straw increasing with use of nitrogen fertilizer rates up to 60 kg N / fed”
t0“RICE”
e2“Oryza sativa”
Claim · model-written summary
Increasing nitrogen fertilizer to 60 kg N per fed increased grain and straw uptake of N, P and K.
- Taxon
- Oryza sativaOryza sativae2
- Treatment
- nitrogen fertilizer rates up to 60 kg N / fede0
- Outcome
- N, P and K-uptake in grain and strawe0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice grain and straw yield and N, P and K-uptake in grain and straw increasing with use of nitrogen fertilizer rates up to 60 kg N / fed”
t0“RICE”
e2“Oryza sativa”
Claim · model-written summary
Increasing nitrogen fertilizer reduced nitrogen use efficiency.
- Taxon
- Oryza sativaOryza sativae2
- Treatment
- nitrogen fertilizer rates up to 60 kg N / fede1
- Outcome
- nitrogen use efficiencye0
- Direction
- decreasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while decreasing values of nitrogen use efficiency for rice crop”
t0“RICE”
e1“nitrogen fertilizer rates up to 60 kg N / fed”
e2“Oryza sativa”
Claim · model-written summary
The named biofertilizer inoculations gave the highest yield and nutrient uptake values, with the stated ranking.
- Taxon
- Oryza sativaOryza sativae2
- Treatment
- blue-green algae, a mixture of bio-fertilizers, Azospirillum, and Bacillus inoculationse0
- Outcome
- highest values of the previous parameterse0
- Direction
- higheste0
- Qualifier
- except the NUEe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“blue-green algae, a mixture of bio-fertilizers, Azospirillum, and Bacillus inoculations, respectively gave the highest values of the previous parameters except the NUE”
t0“RICE”
e2“Oryza sativa”
Claim · model-written summary
Nitrogen use efficiency increased across the stated biofertilizer inoculation order.
- Taxon
- Oryza sativaOryza sativae2
- Treatment
- blue-green algae, a mixture of bio-fertilizers, Azospirillum, and Bacillus inoculationse1
- Outcome
- NUEe0
- Direction
- upwarde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except the NUE, where the order of values was upward with the order of the previous inoculations”
t0“RICE”
e1“blue-green algae, a mixture of bio-fertilizers, Azospirillum, and Bacillus inoculations”
e2“Oryza sativa”
Claim · model-written summary
Compost gave the highest yield and nutrient uptake values.
- Taxon
- Oryza sativaOryza sativae2
- Treatment
- organic matter as a composte0
- Outcome
- highest values of the previous parameterse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of organic matter as a compost gave the highest values of the previous parameters and lowest values of NUE for rice crop”
t0“RICE”
e2“Oryza sativa”
Claim · model-written summary
Compost gave the lowest nitrogen use efficiency.
- Taxon
- Oryza sativaOryza sativae2
- Treatment
- organic matter as a composte0
- Outcome
- NUEe0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of organic matter as a compost gave the highest values of the previous parameters and lowest values of NUE for rice crop”
t0“RICE”
e2“Oryza sativa”
Claim · model-written summary
Compost, blue-green algae inoculation and 60 kg N per fed gave high grain and straw yield and nutrient uptake.
- Taxon
- Oryza sativaOryza sativae2
- Treatment
- Organic matter + Blue green algae inoculation + 60 kg N.fed-1e0
- Outcome
- rice grain and straw yield and nutrients uptakee0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Organic matter + Blue green algae inoculation + 60 kg N.fed-1 gave high rice grain and straw yield and nutrients uptake”
t0“RICE”
e2“Oryza sativa”
Claim · model-written summary
The same combined treatment gave the lowest nitrogen use efficiency.
- Taxon
- Oryza sativaOryza sativae2
- Treatment
- Organic matter + Blue green algae inoculation + 60 kg N.fed-1e0
- Outcome
- N-use efficiencye0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Organic matter + Blue green algae inoculation + 60 kg N.fed-1 gave high rice grain and straw yield and nutrients uptake and gave the lowest N-use efficiency”
t0“RICE”
e2“Oryza sativa”
Claim · model-written summary
Compost plus BGA, mixed or Azospirillum inoculation with 20 kg N per fed could produce economic grain yield.
- Taxon
- Oryza sativaOryza sativae2
- Treatment
- organic matter + BGA or mix or Azospirillum inoculatione0
- Outcome
- economic rice grain yielde0
- Qualifier
- 20 kg-N.fed-1e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying organic matter + BGA or mix or Azospirillum inoculation could produce economic rice grain yield when it combined with third dose of the recommend mineral nitrogen (20 kg-N.fed-1)”
t0“RICE”
e2“Oryza sativa”
Claim · model-written summary
That lower-nitrogen combination gave high nitrogen use efficiency.
- Taxon
- Oryza sativaOryza sativae2
- Treatment
- organic matter + BGA or mix or Azospirillum inoculatione1
- Outcome
- nitrogen use efficiencye0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this treatment gave high nitrogen use efficiency”
t0“RICE”
e1“organic matter + BGA or mix or Azospirillum inoculation”
e2“Oryza sativa”
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See all 327 papers →8 of 14 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.