Abstract
A field experiment was conducted during the summer seasons of 2013 and 2014 at Krishi Vigyan Kendra Farm of Junagadh Agricultural University on sandy loam soils to assess the impact of irrigation and fertility levels on growth indices, productivity, nutrient uptake, post-harvest soil nutrient status and moisture extraction pattern of clusterbean [Cyamopsis tetragonoloba (L.) Taub.]. Sixteen treatment combinations of 4 irrigation levels (0.4, 0.6, 0.8 and 1.0 IW: CPE ratio) and 4 fertility levels (00 : 00, 10 : 20, 20 : 40 and 30 : 60 kg N : P O /ha) were tested 2 5 using split-plot design with 3 replications. The pooled results indicated that irrigation at 0.8 IW: CPE, being at par with 1.0 IW: CPE, enhanced physiological growth parameters, viz. leaf area index (LAI) leaf: stem ratio, crop growth rate (CGR), relative growth rate (RGR) and net assimilation rate (NAR), seed yield (1.33 t/ha), stover yield (2.84 t/ha) and harvest index (31.9%) over 0.4 IW: CPE. The maximum N, P and K content in seed and stover and total N (87.8 kg/ha), P (15.0 kg/ha) and K (54.9 kg/ha) uptake by clusterbean were recorded under 1.0 IW: CPE, while the maximum soil available N (195.6 kg/ha), P (18.4 kg/ha and K (286.2 kg/ha) persisted under 0.4 IW: CPE. Maximum moisture extraction from the upper soil profile was recorded under 1.0 IW: CPE (43.78%), whereas moisture extraction to a lower depth was higher with 0.4 IW: CPE (11.45%). Application of 20 : 40 kg N : P O /ha 2 5 being at par with 30 : 60 kg N : P O /ha also improved physiological growth parameters, seed yield (1.32 t/ha), sto- 2 5 ver yield (2.78 t/ha), harvest index (32.2%) with the N, P and K content in seed and stover and total N (83.2 kg/ha), P (13.9 kg/ha) and K (51.6 kg/ha) uptake by crop over control. Significantly higher post-harvest nutrient status was recorded with 30 : 60 kg N : P O /ha (196.9, 18.3 and 274.1 kg N, P and K/ha respectively). The maximum soil 2 5 moisture depletion (42.1%) was registered from top soil layer (015 cm) in control, while the least with 30 : 60 kg N : P O /ha (39.8%) followed by 20 : 40 kg N : P O /ha (40.8%). However, the reverse trend was observed in bottom 2 5 2 5 soil layer (4560 cm). Thus, irrigation at 0.8 IW: CPE and fertilizer dose of 20 : 40 kg N : P O /ha could be applied 2 5 for higher yield from clusterbean along with sustaining soil health in summer season.
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Claims 15
Claim · model-written summary
Irrigation at 0.8 IW: CPE enhanced physiological growth parameters over 0.4 IW: CPE.
- Taxon
- clusterbean
Cyamopsis tetragonolobat0 - Treatment
- irrigation at 0.8 IW: CPEe1
- Outcome
- physiological growth parameterse1
- Direction
- enhancede1
- Comparator
- 0.4 IW: CPEe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“irrigation at 0.8 IW: CPE, being at par with 1.0 IW: CPE, enhanced physiological growth parameters, viz. leaf area index (LAI) leaf: stem ratio, crop growth rate (CGR), relative growth rate (RGR) and net assimilation rate (NAR), seed yield (1.33 t/ha), stover yield (2.84 t/ha) and harvest index (31.9%) over 0.4 IW: CPE”
t0“summer clusterbean (Cyamopsis tetragonoloba)”
Claim · model-written summary
Irrigation at 0.8 IW: CPE enhanced seed yield to 1.33 t/ha over 0.4 IW: CPE.
- Taxon
- clusterbeanCyamopsis tetragonolobat0
- Treatment
- irrigation at 0.8 IW: CPEe1
- Outcome
- seed yielde1
- Direction
- enhancede1
- Value
- 1.33 t/hae1
- Comparator
- 0.4 IW: CPEe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“irrigation at 0.8 IW: CPE, being at par with 1.0 IW: CPE, enhanced physiological growth parameters, viz. leaf area index (LAI) leaf: stem ratio, crop growth rate (CGR), relative growth rate (RGR) and net assimilation rate (NAR), seed yield (1.33 t/ha), stover yield (2.84 t/ha) and harvest index (31.9%) over 0.4 IW: CPE”
t0“summer clusterbean (Cyamopsis tetragonoloba)”
Claim · model-written summary
Irrigation at 0.8 IW: CPE enhanced stover yield to 2.84 t/ha over 0.4 IW: CPE.
- Taxon
- clusterbeanCyamopsis tetragonolobat0
- Treatment
- irrigation at 0.8 IW: CPEe1
- Outcome
- stover yielde1
- Direction
- enhancede1
- Value
- 2.84 t/hae1
- Comparator
- 0.4 IW: CPEe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“irrigation at 0.8 IW: CPE, being at par with 1.0 IW: CPE, enhanced physiological growth parameters, viz. leaf area index (LAI) leaf: stem ratio, crop growth rate (CGR), relative growth rate (RGR) and net assimilation rate (NAR), seed yield (1.33 t/ha), stover yield (2.84 t/ha) and harvest index (31.9%) over 0.4 IW: CPE”
t0“summer clusterbean (Cyamopsis tetragonoloba)”
Claim · model-written summary
Irrigation at 0.8 IW: CPE enhanced harvest index to 31.9% over 0.4 IW: CPE.
- Taxon
- clusterbeanCyamopsis tetragonolobat0
- Treatment
- irrigation at 0.8 IW: CPEe1
- Outcome
- harvest indexe1
- Direction
- enhancede1
- Value
- 31.9%e1
- Comparator
- 0.4 IW: CPEe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“irrigation at 0.8 IW: CPE, being at par with 1.0 IW: CPE, enhanced physiological growth parameters, viz. leaf area index (LAI) leaf: stem ratio, crop growth rate (CGR), relative growth rate (RGR) and net assimilation rate (NAR), seed yield (1.33 t/ha), stover yield (2.84 t/ha) and harvest index (31.9%) over 0.4 IW: CPE”
t0“summer clusterbean (Cyamopsis tetragonoloba)”
Claim · model-written summary
N, P and K content in seed and stover was maximum under 1.0 IW: CPE.
- Taxon
- clusterbeanCyamopsis tetragonolobat0
- Treatment
- 1.0 IW: CPEe1
- Outcome
- N, P and K content in seed and stovere1
- Direction
- maximume1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The maximum N, P and K content in seed and stover and total N (87.8 kg/ha), P (15.0 kg/ha) and K (54.9 kg/ha) uptake by clusterbean were recorded under 1.0 IW: CPE”
t0“summer clusterbean (Cyamopsis tetragonoloba)”
Claim · model-written summary
Total N uptake by clusterbean was maximum under 1.0 IW: CPE, at 87.8 kg/ha.
- Taxon
- clusterbeanCyamopsis tetragonolobat0
- Treatment
- 1.0 IW: CPEe1
- Outcome
- uptakee1
- Direction
- maximume1
- Value
- 87.8 kg/hae1
- Qualifier
- total Ne1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The maximum N, P and K content in seed and stover and total N (87.8 kg/ha), P (15.0 kg/ha) and K (54.9 kg/ha) uptake by clusterbean were recorded under 1.0 IW: CPE”
t0“summer clusterbean (Cyamopsis tetragonoloba)”
Claim · model-written summary
P uptake by clusterbean was maximum under 1.0 IW: CPE, at 15.0 kg/ha.
- Taxon
- clusterbeanCyamopsis tetragonolobat0
- Treatment
- 1.0 IW: CPEe1
- Outcome
- uptakee1
- Direction
- maximume1
- Value
- 15.0 kg/hae1
- Qualifier
- Pe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The maximum N, P and K content in seed and stover and total N (87.8 kg/ha), P (15.0 kg/ha) and K (54.9 kg/ha) uptake by clusterbean were recorded under 1.0 IW: CPE”
t0“summer clusterbean (Cyamopsis tetragonoloba)”
Claim · model-written summary
K uptake by clusterbean was maximum under 1.0 IW: CPE, at 54.9 kg/ha.
- Taxon
- clusterbeanCyamopsis tetragonolobat0
- Treatment
- 1.0 IW: CPEe1
- Outcome
- uptakee1
- Direction
- maximume1
- Value
- 54.9 kg/hae1
- Qualifier
- Ke1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The maximum N, P and K content in seed and stover and total N (87.8 kg/ha), P (15.0 kg/ha) and K (54.9 kg/ha) uptake by clusterbean were recorded under 1.0 IW: CPE”
t0“summer clusterbean (Cyamopsis tetragonoloba)”
Claim · model-written summary
Soil available N was maximum under 0.4 IW: CPE, at 195.6 kg/ha.
- Taxon
- clusterbeanCyamopsis tetragonolobat0
- Treatment
- 0.4 IW: CPEe2
- Outcome
- soil available Ne2
- Direction
- maximume2
- Value
- 195.6 kg/hae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“while the maximum soil available N (195.6 kg/ha), P (18.4 kg/ha and K (286.2 kg/ha) persisted under 0.4 IW: CPE”
t0“summer clusterbean (Cyamopsis tetragonoloba)”
Claim · model-written summary
Soil available P was maximum under 0.4 IW: CPE, at 18.4 kg/ha.
- Taxon
- clusterbeanCyamopsis tetragonolobat0
- Treatment
- 0.4 IW: CPEe2
- Outcome
- soil availablee2
- Direction
- maximume2
- Value
- 18.4 kg/hae2
- Qualifier
- Pe2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“while the maximum soil available N (195.6 kg/ha), P (18.4 kg/ha and K (286.2 kg/ha) persisted under 0.4 IW: CPE”
t0“summer clusterbean (Cyamopsis tetragonoloba)”
Claim · model-written summary
Soil available K was maximum under 0.4 IW: CPE, at 286.2 kg/ha.
- Taxon
- clusterbeanCyamopsis tetragonolobat0
- Treatment
- 0.4 IW: CPEe2
- Outcome
- soil availablee2
- Direction
- maximume2
- Value
- 286.2 kg/hae2
- Qualifier
- Ke2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“while the maximum soil available N (195.6 kg/ha), P (18.4 kg/ha and K (286.2 kg/ha) persisted under 0.4 IW: CPE”
t0“summer clusterbean (Cyamopsis tetragonoloba)”
Claim · model-written summary
Moisture extraction from the upper soil profile was maximum under 1.0 IW: CPE, at 43.78%.
- Taxon
- clusterbeanCyamopsis tetragonolobat0
- Treatment
- 1.0 IW: CPEe3
- Outcome
- moisture extraction from the upper soil profilee3
- Direction
- Maximume3
- Value
- 43.78%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Maximum moisture extraction from the upper soil profile was recorded under 1.0 IW: CPE (43.78%)”
t0“summer clusterbean (Cyamopsis tetragonoloba)”
Claim · model-written summary
Moisture extraction to a lower depth was higher under 0.4 IW: CPE, at 11.45%.
- Taxon
- clusterbeanCyamopsis tetragonolobat0
- Treatment
- 0.4 IW: CPEe4
- Outcome
- moisture extraction to a lower depthe4
- Direction
- highere4
- Value
- 11.45%e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“whereas moisture extraction to a lower depth was higher with 0.4 IW: CPE (11.45%)”
t0“summer clusterbean (Cyamopsis tetragonoloba)”
Claim · model-written summary
Post-harvest soil nutrient status was significantly higher under 30 : 60 kg N : P O /ha.
- Taxon
- clusterbeanCyamopsis tetragonolobat0
- Treatment
- 30 : 60 kg N : P O /hae7
- Outcome
- post-harvest nutrient statuse7
- Direction
- highere7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Significantly higher post-harvest nutrient status was recorded with 30 : 60 kg N : P O /ha (196.9, 18.3 and 274.1 kg N, P and K/ha respectively)”
t0“summer clusterbean (Cyamopsis tetragonoloba)”
Claim · model-written summary
Moisture depletion in the top soil was least under 30 : 60 kg N : P O /ha, at 39.8%.
- Taxon
- clusterbeanCyamopsis tetragonolobat0
- Treatment
- 30 : 60 kg N : P O /hae1
- Outcome
- moisture depletione0
- Direction
- leaste1
- Value
- 39.8%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“moisture depletion (42.1%) was registered”
e1“while the least with 30 : 60 kg N : P O /ha (39.8%)”
t0“summer clusterbean (Cyamopsis tetragonoloba)”
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See all 17 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.