Abstract
A field trial was conducted for two consecutive years to evaluate onion (Allium cepa L.) performance, soil fertility build-up and estimation of soil enzymes, soil microbial biomass and microbial population under integrated nutrient management with two organic manures viz. vermicompost and farmyard manure (FYM) in combination with NPK fertilizers in sub-tropical zone of Jammu. The treatments tested were: T1- control; T2 - 100% NPK alone; T3 - 100% NPK + 12.5 t FYM ha-1; T4 - 100% NPK + 25 t FYM ha-1; T5 - 100% NPK + 12.5 t vermicompost ha-1; T6 - 100% NPK + 25 t vermicompost ha-1. The maximum onion yield was recorded with the application of 100% NPK + 25 t vermicompost ha-1 (T6) during both the years i.e. 9.63 and 10.34 t ha-1. The application of FYM @ 25 t ha-1 (T4) recorded 23 and 18% increase in yield of onion over 100% NPK alone (T2) during 2012-13 and 2013-14, respectively, whereas vermicompost @ 25 t ha-1 (T6) recorded 39 and 31% increased onion yield. A comparison between FYM and vermicompost receiving treatments revealed that the treatments receiving same quantity of vermicompost recorded higher yield in comparison to FYM. Furthermore, yield of onion obtained with 12.5 t vermicompost ha-1 plus 100% NPK (T5) during both the years was at par with that received under 25 t FYM ha-1 plus 100% NPK (T4) demonstrating superiority of vermicompost over FYM. Application of vermicompost @ 25 t ha-1 plus 100% NPK (T6) also increased N uptake over 100% NPK alone (T2) by 120 and 138% by onion during both the consecutive years, respectively. The corresponding increase in P uptake was 164 and 130% whereas in case of K, it was 112 and 171%. The highest soil available N, P and K content was observed with T6, as 296, 25.7 and 343 kg ha-1. The treatment T6 also increased organic carbon content over 100% NPK treated plots (T2) by 58%. Microbial population increased by 149% cfu × 10-4 and 70% cfu × 10-4 in T6 over control and T2, respectively. Soil microbial biomass varied considerably among treatments and ranged from 41 to 143 mg kg-1 and the highest microbial biomass was recorded in T6. Phosphatase activity exhibited increasing trend with the application of both FYM and vermicompost and the highest value was observed in T6. NPK fertilizers alone recorded significantly higher phosphatase activity and it increased by 36% over control. Use of chemical fertilizers alone i.e. 100% NPK exhibited a lower dehydrogenase activity compared with conjoined use of inorganic and organic treatments.
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 19
Claim · model-written summary
T6 gave the maximum onion yield in both years.
- Taxon
- onion
Allium cepae1 - Treatment
- 100% NPK + 25 t vermicompost ha-1e0
- Outcome
- onion yielde0
- Direction
- maximume0
- Value
- 9.63 and 10.34 t ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum onion yield was recorded with the application of 100% NPK + 25 t vermicompost ha-1 (T6) during both the years i.e. 9.63 and 10.34 t ha-1”
e1“onion (Allium cepa L.)”
Claim · model-written summary
T4 increased onion yield by 23% in 2012-13 relative to T2.
- Taxon
- onionAllium cepae0
- Treatment
- FYM @ 25 t ha-1e0
- Outcome
- yield of onione0
- Direction
- increasee0
- Value
- 23e0
- Qualifier
- 2012-13e0
- Comparator
- 100% NPK alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“FYM @ 25 t ha-1 (T4) recorded 23 and 18% increase in yield of onion over 100% NPK alone (T2) during 2012-13 and 2013-14”
Claim · model-written summary
T4 increased onion yield by 18% in 2013-14 relative to T2.
- Taxon
- onionAllium cepae0
- Treatment
- FYM @ 25 t ha-1e0
- Outcome
- yield of onione0
- Direction
- increasee0
- Value
- 18%e0
- Qualifier
- 2013-14e0
- Comparator
- 100% NPK alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“FYM @ 25 t ha-1 (T4) recorded 23 and 18% increase in yield of onion over 100% NPK alone (T2) during 2012-13 and 2013-14”
Claim · model-written summary
T6 increased onion yield by 39% in the first year.
- Taxon
- onionAllium cepae0
- Treatment
- vermicompost @ 25 t ha-1e0
- Outcome
- onion yielde0
- Direction
- increasede0
- Value
- 39e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“vermicompost @ 25 t ha-1 (T6) recorded 39 and 31% increased onion yield”
Claim · model-written summary
T6 increased onion yield by 31% in the second year.
- Taxon
- onionAllium cepae0
- Treatment
- vermicompost @ 25 t ha-1e0
- Outcome
- onion yielde0
- Direction
- increasede0
- Value
- 31%e0
- Qualifier
- 2013-14e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“vermicompost @ 25 t ha-1 (T6) recorded 39 and 31% increased onion yield”
e1“during 2012-13 and 2013-14”
Claim · model-written summary
At equal quantities, vermicompost gave higher onion yield than FYM.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatments receiving same quantity of vermicompost recorded higher yield in comparison to FYM”
e1“Furthermore, yield of onion”
Claim · model-written summary
T5 onion yield was at par with T4 in both years.
- Taxon
- onionAllium cepae0
- Treatment
- 12.5 t vermicompost ha-1 plus 100% NPKe0
- Outcome
- yield of onione0
- Direction
- at pare0
- Comparator
- 25 t FYM ha-1 plus 100% NPKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield of onion obtained with 12.5 t vermicompost ha-1 plus 100% NPK (T5) during both the years was at par with that received under 25 t FYM ha-1 plus 100% NPK (T4)”
Claim · model-written summary
T6 increased onion N uptake by 120 and 138% over T2 in successive years.
- Taxon
- onionAllium cepae0
- Treatment
- vermicompost @ 25 t ha-1 plus 100% NPKe0
- Outcome
- N uptakee0
- Direction
- increasede0
- Value
- 120 and 138%e0
- Comparator
- 100% NPK alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of vermicompost @ 25 t ha-1 plus 100% NPK (T6) also increased N uptake over 100% NPK alone (T2) by 120 and 138% by onion during both the consecutive years”
Claim · model-written summary
T6 increased onion P uptake by 164 and 130% in successive years.
- Taxon
- onionAllium cepae1
- Treatment
- vermicompost @ 25 t ha-1 plus 100% NPKe2
- Outcome
- P uptakee0
- Direction
- increasee0
- Value
- 164 and 130%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The corresponding increase in P uptake was 164 and 130%”
e1“by onion during both the consecutive years”
e2“vermicompost @ 25 t ha-1 plus 100% NPK”
Claim · model-written summary
T6 increased onion K uptake by 112 and 171% in successive years.
- Taxon
- onionAllium cepae1
- Treatment
- vermicompost @ 25 t ha-1 plus 100% NPKe2
- Outcome
- Ke0
- Direction
- increasee3
- Value
- 112 and 171%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in case of K, it was 112 and 171%”
e1“by onion during both the consecutive years”
e2“vermicompost @ 25 t ha-1 plus 100% NPK”
e3“corresponding increase”
Claim · model-written summary
T6 gave the highest available soil N, P and K contents of 296, 25.7 and 343 kg ha-1, respectively.
- Taxon
- onionAllium cepae2
- Treatment
- 100% NPK + 25 t vermicompost ha-1e1
- Outcome
- soil available N, P and K contente0
- Direction
- higheste0
- Value
- 296, 25.7 and 343 kg ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest soil available N, P and K content was observed with T6, as 296, 25.7 and 343 kg ha-1”
e1“100% NPK + 25 t vermicompost ha-1 (T6)”
e2“onion (Allium cepa L.)”
Claim · model-written summary
T6 increased soil organic carbon by 58% over T2.
- Taxon
- onionAllium cepae2
- Treatment
- 100% NPK + 25 t vermicompost ha-1e1
- Outcome
- organic carbon contente0
- Direction
- increasede0
- Value
- 58%e0
- Comparator
- 100% NPK treated plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatment T6 also increased organic carbon content over 100% NPK treated plots (T2) by 58%”
e1“100% NPK + 25 t vermicompost ha-1 (T6)”
e2“onion (Allium cepa L.)”
Claim · model-written summary
T6 increased microbial population by 149% over control.
- Taxon
- onionAllium cepae2
- Treatment
- 100% NPK + 25 t vermicompost ha-1e1
- Outcome
- Microbial populatione0
- Direction
- increasede0
- Value
- 149% cfu × 10-4e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Microbial population increased by 149% cfu × 10-4 and 70% cfu × 10-4 in T6 over control and T2, respectively”
e1“100% NPK + 25 t vermicompost ha-1 (T6)”
e2“onion (Allium cepa L.)”
Claim · model-written summary
T6 increased microbial population by 70% over T2.
- Taxon
- onionAllium cepae2
- Treatment
- 100% NPK + 25 t vermicompost ha-1e1
- Outcome
- Microbial populatione0
- Direction
- increasede0
- Value
- 70% cfu × 10-4e0
- Comparator
- T2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Microbial population increased by 149% cfu × 10-4 and 70% cfu × 10-4 in T6 over control and T2, respectively”
e1“100% NPK + 25 t vermicompost ha-1 (T6)”
e2“onion (Allium cepa L.)”
Claim · model-written summary
Soil microbial biomass ranged from 41 to 143 mg kg-1 and was highest in T6.
- Taxon
- onionAllium cepae1
- Outcome
- Soil microbial biomasse0
- Direction
- higheste0
- Value
- 41 to 143 mg kg-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil microbial biomass varied considerably among treatments and ranged from 41 to 143 mg kg-1 and the highest microbial biomass was recorded in T6”
e1“onion (Allium cepa L.)”
Claim · model-written summary
FYM increased soil phosphatase activity.
- Taxon
- onionAllium cepae1
- Treatment
- FYMe0
- Outcome
- Phosphatase activitye0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphatase activity exhibited increasing trend with the application of both FYM and vermicompost”
e1“onion (Allium cepa L.)”
Claim · model-written summary
Vermicompost increased soil phosphatase activity, with the highest value in T6.
- Taxon
- onionAllium cepae1
- Treatment
- vermicomposte0
- Outcome
- Phosphatase activitye0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphatase activity exhibited increasing trend with the application of both FYM and vermicompost and the highest value was observed in T6”
e1“onion (Allium cepa L.)”
Claim · model-written summary
NPK alone increased phosphatase activity by 36% over control, significantly.
- Taxon
- onionAllium cepae1
- Treatment
- NPK fertilizers alonee0
- Outcome
- phosphatase activitye0
- Direction
- increasede0
- Value
- 36%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPK fertilizers alone recorded significantly higher phosphatase activity and it increased by 36% over control”
e1“onion (Allium cepa L.)”
Claim · model-written summary
Chemical fertilizer alone gave lower dehydrogenase activity than combined inorganic and organic treatments.
- Taxon
- onionAllium cepae1
- Treatment
- 100% NPKe0
- Outcome
- dehydrogenase activitye0
- Direction
- lowere0
- Comparator
- conjoined use of inorganic and organic treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“100% NPK exhibited a lower dehydrogenase activity compared with conjoined use of inorganic and organic treatments”
e1“onion (Allium cepa L.)”
The same questions in other papers
fertilization · soil: biology · Allium cepa (onion)Positive and negative results
9 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
7 papers more in this group
See all 11 papers →fertilization · soil: chemistry · Allium cepa (onion)Positive and negative results
31 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
29 papers more in this group
See all 33 papers →fertilization · nutrient: content · Allium cepa (onion)Positive and negative results
80 papers in the same direction as this paper · 9 in the opposite direction
- no effect
- no effect
- negative
86 papers more in this group
See all 90 papers →fertilization · yield · Allium cepa (onion)Positive and negative results
463 papers in the same direction as this paper · 59 in the opposite direction · 7 reporting no difference from an alternative
- negative
- no effect
- negative
526 papers more in this group
See all 530 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.