Abstract
SOIL fertility was and still one of the most important factors controlling the productivity of crops. A field experiment was conducted at Sakha Agricultural Research Station, Egypt to assess the effect of green manure, bio-N fertilizer and mineral nitrogen fertilizer on some soil properties, mineral nitrogen fertilizer efficiency (i.e., N-use efficiency) and yield of onion (in winter season 2015/2016) following by maize (in summer 2016). Treatments included bio-N-fertilizers, mineral nitrogen fertilizer and green manure. The results showed that using all green manures (i.e., Egyptian clover and fenugreek) before planting onion significantly developed soil properties; increased availability of the studied nutrients and total porosity. Inoculations with bio-fertilizer maximize these effects on soil properties and yield of onion and maize. Interaction between fenugreek with bio-fertilizer and mineral N-fertilizer at 120 kg fed-1 attained the highest values of total onion yield, averages of bulb weight, diameter, dry matter content and nutrients-uptake of NPK in the first season after green manure application. After cultivation of maize, the highest values of grain and dry stalks yields, 100-grain weight and NPK-uptake were obtained with the interaction of Egyptian clover with bio-fertilizer and N-fertilizer at 90 kg fed-1. The use of Egyptian clover as green manure with bio-fertilizer increased N-use efficiency for onion at 60 kg N fed-1 and for maize grain yield was at 120 kg N fed-1. So, the study concluded importance of using green manures to improve soil properties and use efficiency of mineral nitrogen fertilizer.
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Claims 11
Claim · model-written summary
Green manures (Egyptian clover and fenugreek) applied before planting onion significantly improved soil properties.
- Taxon
- onion
Allium cepae1 - Treatment
- green manures (i.e., Egyptian clover and fenugreek)e1
- Outcome
- soil propertiese1
- Direction
- developede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“using all green manures (i.e., Egyptian clover and fenugreek) before planting onion significantly developed soil properties; increased availability of the studied nutrients and total porosity”
Claim · model-written summary
Green manures increased the availability of the studied nutrients and total porosity of the soil.
- Taxon
- onionAllium cepae1
- Treatment
- green manures (i.e., Egyptian clover and fenugreek)e1
- Outcome
- availability of the studied nutrients and total porositye1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“using all green manures (i.e., Egyptian clover and fenugreek) before planting onion significantly developed soil properties; increased availability of the studied nutrients and total porosity”
Claim · model-written summary
Inoculation with bio-fertilizer maximized the green manure effects on soil properties and on onion yield.
- Taxon
- onionAllium cepae1
- Treatment
- Inoculations with bio-fertilizere1
- Outcome
- soil properties and yielde1
- Direction
- maximizee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Inoculations with bio-fertilizer maximize these effects on soil properties and yield of onion and maize”
Claim · model-written summary
Inoculation with bio-fertilizer maximized the green manure effects on soil properties and on maize yield.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Inoculations with bio-fertilizer maximize these effects on soil properties and yield of onion and maize”
Claim · model-written summary
Fenugreek green manure with bio-fertilizer and mineral N at 120 kg fed-1 gave the highest total onion yield, bulb weight and bulb diameter.
- Taxon
- onionAllium cepae1
- Treatment
- fenugreek with bio-fertilizer and mineral N-fertilizer at 120 kg fed-1e1
- Outcome
- total onion yield, averages of bulb weight, diametere1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Interaction between fenugreek with bio-fertilizer and mineral N-fertilizer at 120 kg fed-1 attained the highest values of total onion yield, averages of bulb weight, diameter, dry matter content and nutrients-uptake of NPK in the first season after green manure application”
Claim · model-written summary
The same treatment gave the highest onion dry matter content and NPK uptake.
- Taxon
- onionAllium cepae1
- Treatment
- fenugreek with bio-fertilizer and mineral N-fertilizer at 120 kg fed-1e1
- Outcome
- dry matter content and nutrients-uptake of NPKe1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Interaction between fenugreek with bio-fertilizer and mineral N-fertilizer at 120 kg fed-1 attained the highest values of total onion yield, averages of bulb weight, diameter, dry matter content and nutrients-uptake of NPK in the first season after green manure application”
Claim · model-written summary
In maize, Egyptian clover green manure with bio-fertilizer and N at 90 kg fed-1 gave the highest grain and dry stalk yields and 100-grain weight.
- Treatment
- Egyptian clover with bio-fertilizer and N-fertilizer at 90 kg fed-1e1
- Outcome
- grain and dry stalks yields, 100-grain weighte1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“After cultivation of maize, the highest values of grain and dry stalks yields, 100-grain weight and NPK-uptake were obtained with the interaction of Egyptian clover with bio-fertilizer and N-fertilizer at 90 kg fed-1”
Claim · model-written summary
In maize, the same treatment gave the highest NPK uptake.
- Treatment
- Egyptian clover with bio-fertilizer and N-fertilizer at 90 kg fed-1e1
- Outcome
- NPK-uptakee1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“After cultivation of maize, the highest values of grain and dry stalks yields, 100-grain weight and NPK-uptake were obtained with the interaction of Egyptian clover with bio-fertilizer and N-fertilizer at 90 kg fed-1”
Claim · model-written summary
Egyptian clover green manure with bio-fertilizer increased N-use efficiency for onion at 60 kg N fed-1.
- Taxon
- onionAllium cepae1
- Treatment
- Egyptian clover as green manure with bio-fertilizere1
- Outcome
- N-use efficiencye1
- Direction
- increasede1
- Value
- 60 kg N fed-1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The use of Egyptian clover as green manure with bio-fertilizer increased N-use efficiency for onion at 60 kg N fed-1 and for maize grain yield was at 120 kg N fed-1”
Claim · model-written summary
Egyptian clover green manure with bio-fertilizer increased N-use efficiency for maize grain yield at 120 kg N fed-1.
- Treatment
- Egyptian clover as green manure with bio-fertilizere1
- Outcome
- N-use efficiencye1
- Direction
- increasede1
- Value
- 120 kg N fed-1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The use of Egyptian clover as green manure with bio-fertilizer increased N-use efficiency for onion at 60 kg N fed-1 and for maize grain yield was at 120 kg N fed-1”
Claim · model-written summary
The study concluded that green manures are important for improving soil properties and mineral nitrogen use efficiency.
Verbatim
t0“Onion-Maize”
e1“the study concluded importance of using green manures to improve soil properties and use efficiency of mineral nitrogen fertilizer”
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See all 538 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.