Abstract
The current work aimed to elucidate the effect of N mineral fertilization rates in combination with N bio-fertilizer source and its rate on barley yield (Hordeum vulgare L.) var. Giza 2000 and its components in sandy soil. Afield experiment was conducted at Kantra Shark, north Sinai Governorate during 2017/2018 winter season using randomized complete block design with split split plot arrangements replicated three times. The main plots assigned to four mineral - N rates (0.0, 50, 75 and 100 kg N fed-1) as ammonium sulphate (205g N kg-1). The sub plots occupied by two commercial bio-fertilizer sources, Cyrialine and Microbine. The sub-sub plots dedicated to three bio-fertilizer rates (0.0,400,600 and 800 g fed-1). The results appeared that barley grain, straw and biological yields, harvest index(HI), grains protein content (%), N, P , K-uptake (kg fed-1) by grains or straw , total uptake (grains + straw) , agronomical and recovery (P and K) use efficiencies increased significantly with increasing N-fertilizer rate up to 100 kg fed-1.Agronomical, recovery nitrogen use efficiencies and physiological (N,P and K ) use efficiencies decreased significantly with increasing N-fertilizer rate. Cyrialine was superior to Microbine in its beneficial effect on most abovementioned traits. All studdedvegetative characters as well as chemical composition, nutrient uptake and nutrient use efficiency increased significantly with increasing bio-fertilizer rate. Generally, although the crop responsed to mineral N rates up to 100kg N fed-1 under the studied soil (sandy), the combination application with bio-fertilizers was the best for all studied parameters and can save approximately 25 % of mineral N fertilizer at least as well as help in reducing mineral fertilizer pollution in growth media.
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Claims 7
Claim · model-written summary
Increasing mineral nitrogen to 100 kg per feddan significantly increased grain, straw and biological yields and harvest index.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Treatment
- increasing N-fertilizer rate up to 100 kg fed-1e0
- Outcome
- barley grain, straw and biological yields, harvest index(HI)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“barley grain, straw and biological yields, harvest index(HI), grains protein content (%), N, P , K-uptake (kg fed-1) by grains or straw , total uptake (grains + straw) , agronomical and recovery (P and K) use efficiencies increased significantly with increasing N-fertilizer rate up to 100 kg fed-1”
Claim · model-written summary
Increasing mineral nitrogen significantly increased grain protein and nutrient uptake.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- increasing N-fertilizer rate up to 100 kg fed-1e0
- Outcome
- grains protein content (%), N, P , K-uptake (kg fed-1)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“barley grain, straw and biological yields, harvest index(HI), grains protein content (%), N, P , K-uptake (kg fed-1) by grains or straw , total uptake (grains + straw) , agronomical and recovery (P and K) use efficiencies increased significantly with increasing N-fertilizer rate up to 100 kg fed-1”
Claim · model-written summary
Increasing mineral nitrogen significantly increased agronomic and recovery efficiencies for phosphorus and potassium.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- increasing N-fertilizer rate up to 100 kg fed-1e0
- Outcome
- agronomical and recovery (P and K) use efficienciese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“barley grain, straw and biological yields, harvest index(HI), grains protein content (%), N, P , K-uptake (kg fed-1) by grains or straw , total uptake (grains + straw) , agronomical and recovery (P and K) use efficiencies increased significantly with increasing N-fertilizer rate up to 100 kg fed-1”
Claim · model-written summary
Higher mineral nitrogen significantly lowered nitrogen agronomic and recovery efficiency and N, P and K physiological efficiency.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- increasing N-fertilizer ratee0
- Outcome
- Agronomical, recovery nitrogen use efficiencies and physiological (N,P and K ) use efficienciese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley Yield”
e0“Agronomical, recovery nitrogen use efficiencies and physiological (N,P and K ) use efficiencies decreased significantly with increasing N-fertilizer rate”
Claim · model-written summary
Cyrialine outperformed Microbine on most reported traits.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- Cyrialinee0
- Outcome
- beneficial effect on most abovementioned traitse0
- Direction
- superiore0
- Comparator
- Microbinee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley Yield”
e0“Cyrialine was superior to Microbine in its beneficial effect on most abovementioned traits”
Claim · model-written summary
Increasing biofertilizer rate significantly increased vegetative traits, composition, nutrient uptake and nutrient efficiency.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- increasing bio-fertilizer ratee0
- Outcome
- studdedvegetative characters as well as chemical composition, nutrient uptake and nutrient use efficiencye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley Yield”
e0“All studdedvegetative characters as well as chemical composition, nutrient uptake and nutrient use efficiency increased significantly with increasing bio-fertilizer rate”
Claim · model-written summary
Combined biofertilizer application could save approximately 25% of mineral nitrogen.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- combination application with bio-fertilizerse0
- Outcome
- save approximately 25 % of mineral N fertilizere0
- Value
- 25 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley Yield”
e0“combination application with bio-fertilizers was the best for all studied parameters and can save approximately 25 % of mineral N fertilizer at least”
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