Abstract
A long-term experiment on conservation agriculture was designed to study different nitrogen dynamics in maize based cropping system at Research Farm, Bihar Agricultural University, Sabour dominated by Inceptisols in eastern Indo-Gangetic plains. The maize based cropping system was studied having various tillage (T1: Zero Tillage; T2: Permanent Raised Bed; T3: Conventional Tillage) and cropping sequences (C1: Maize+Soybean-Wheat; C2: Maize-Wheat; C3: Maize-Maize; C4: Maize-Mustard; C5: Maize-Chick pea; C6: Soybean-Maize) with a special reference to changes in different N fractions. Significant correlation was found between different N fractions (Total N, Ammoniacal-N, Nitrate-N, Total Hydrolysable-N, Hydrolysable ammoniacal-N, Amino Acid-N, Amino Sugar-N, Unidentified-N, Non-hydrolysable N, Available N) and yield as well as N uptake of maize. Zero tillage system under maize-chickpea cropping was found superior in terms of amount of all fractions of N and was also responsible for the improved yield, N uptake, physico-chemical properties and fertility levels of the soils. The organic forms of N, especially total hydrolysable and amino acid N, showed strong positive correlations with available N. Overall, organic N constituted a dominate part of soil N and played key role in soil N cycling and crop production. Not only organic N mineralized into mineral N for plant uptake, it also provided some organic components for plant direct absorption.
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Claims 7
Claim · model-written summary
Nitrogen fractions correlated significantly with maize yield and nitrogen uptake.
Zea maysNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant correlation was found between different N fractions (Total N, Ammoniacal-N, Nitrate-N, Total Hydrolysable-N, Hydrolysable ammoniacal-N, Amino Acid-N, Amino Sugar-N, Unidentified-N, Non-hydrolysable N, Available N) and yield as well as N uptake of maize.”
Claim · model-written summary
Zero tillage under maize-chickpea cropping was superior for all nitrogen fractions.
- Treatment
- Zero tillage system under maize-chickpea croppinge0
- Outcome
- amount of all fractions of Ne0
- Direction
- superiore0
Not reportedTaxonComparator
Verbatim
e0“Zero tillage system under maize-chickpea cropping was found superior in terms of amount of all fractions of N and was also responsible for the improved yield, N uptake, physico-chemical properties and fertility levels of the soils.”
Claim · model-written summary
Zero tillage with maize-chickpea improved maize yield and nitrogen uptake.
- Treatment
- Zero tillage system under maize-chickpea croppinge0
- Outcome
- yield, N uptakee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zero tillage system under maize-chickpea cropping was found superior in terms of amount of all fractions of N and was also responsible for the improved yield, N uptake, physico-chemical properties and fertility levels of the soils.”
Claim · model-written summary
Zero tillage with maize-chickpea improved soil properties and fertility.
- Treatment
- Zero tillage system under maize-chickpea croppinge0
- Outcome
- physico-chemical properties and fertility levels of the soilse0
- Direction
- improvede0
Not reportedTaxonComparator
Verbatim
e0“Zero tillage system under maize-chickpea cropping was found superior in terms of amount of all fractions of N and was also responsible for the improved yield, N uptake, physico-chemical properties and fertility levels of the soils.”
Claim · model-written summary
Organic nitrogen, especially hydrolysable and amino acid nitrogen, correlated positively with available nitrogen.
Not reportedTaxon
Verbatim
e0“The organic forms of N, especially total hydrolysable and amino acid N, showed strong positive correlations with available N.”
Claim · model-written summary
Organic nitrogen dominated soil nitrogen.
Not reportedTaxon
Verbatim
e0“Overall, organic N constituted a dominate part of soil N and played key role in soil N cycling and crop production.”
Claim · model-written summary
Organic nitrogen supports soil cycling and crop production through mineralization and direct organic uptake.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Overall, organic N constituted a dominate part of soil N and played key role in soil N cycling and crop production. Not only organic N mineralized into mineral N for plant uptake, it also provided some organic components for plant direct absorption.”
e1“yield as well as N uptake of maize”
The same questions in other papers
tillage · yield · Zea mays (maize)Positive and negative results
811 papers in the same direction as this paper · 230 in the opposite direction · 57 reporting no difference from an alternative
- no effect
- negative
- no effect
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