Paper · 2020 · Revista Brasileira de Ciências Agrárias - Brazilian Journal of Agricultural Sciences

Biomass production and macronutrient content in Pennisetum glaucum (L.) R. Brown as affected by organic fertilization and irrigation

A.F.M. Vital; T. Souza; L.J.R. Silva; et al.

6
claims
12
verbatim quotes
11
citations
2
research areas
✓
Open access · cc-by-nc

Abstract

Given the growing and needing for more effective organic fertilization and irrigation on pearl millet cultivated in Brazilian semi-arid, a field experiment was conducted in 2012 and 2013 simulating the smallholder farming system adopted in the Brazilian semi-arid to explore the effect of five organic sources (bovine manure, goat manure, compost, green manure, and control) under irrigation and no irrigation conditions. The experiment was a fully factorial design with four replications. The highest values of shoot dry biomass (16.55 Mg ha-1), and plant contents of Ca, Mg and S (6.77; 4.39; and 1.47 g kg-1 of Ca, Mg and S, respectively) were found on plots where compost was applied combined with the irrigation. Whereas for crude protein crude protein (15.41%), the highest values were found where the green manure was applied combined with the irrigation. Finally, for plant N, P and K content (24.60; 2.00; 45.75 g kg-1 of N, P and K, respectively) the highest values where found where the goat manure was applied combined with the irrigation. Our findings suggest that organic amendments can affect plant dry biomass production and crude protein content (increased by 723.38 and 223.73% compared to control, respectively). The results of our study highlight the importance of considering organic fertilization and irrigation as key-factors to improve both food and forage production.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Compost with irrigation gave highest shoot dry biomass, 16.55 Mg ha-1.

Taxon
pearl milletCenchrus americanust0
Treatment
compost was applied combined with the irrigatione0
Outcome
shoot dry biomasse0
Direction
higheste0
Value
16.55 Mg ha-1e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus americanus
Cenchrus americanus · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“highest values of shoot dry biomass (16.55 Mg ha-1), and plant contents of Ca, Mg and S (6.77; 4.39; and 1.47 g kg-1 of Ca, Mg and S, respectively) were found on plots where compost was applied combined with the irrigation”

✓ located verbatim in the source · abstract, characters 494–716 · show in text ↑
t0

“on pearl millet cultivated in Brazilian semi-arid”

✓ located verbatim in the source · abstract, characters 86–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Compost with irrigation gave highest Ca, Mg and S contents at 6.77, 4.39 and 1.47 g kg-1.

Taxon
pearl milletCenchrus americanust0
Treatment
compost was applied combined with the irrigatione0
Outcome
plant contents of Ca, Mg and Se0
Direction
higheste0
Value
6.77; 4.39; and 1.47 g kg-1e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus americanus
Cenchrus americanus · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“highest values of shoot dry biomass (16.55 Mg ha-1), and plant contents of Ca, Mg and S (6.77; 4.39; and 1.47 g kg-1 of Ca, Mg and S, respectively) were found on plots where compost was applied combined with the irrigation”

✓ located verbatim in the source · abstract, characters 494–716 · show in text ↑
t0

“on pearl millet cultivated in Brazilian semi-arid”

✓ located verbatim in the source · abstract, characters 86–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Green manure with irrigation gave highest crude protein, 15.41%.

Taxon
pearl milletCenchrus americanust0
Treatment
green manure was applied combined with the irrigatione0
Outcome
crude proteine0
Direction
higheste0
Value
15.41%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus americanus
Cenchrus americanus · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“crude protein (15.41%), the highest values were found where the green manure was applied combined with the irrigation”

✓ located verbatim in the source · abstract, characters 744–861 · show in text ↑
t0

“on pearl millet cultivated in Brazilian semi-arid”

✓ located verbatim in the source · abstract, characters 86–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Goat manure with irrigation gave highest N, P and K contents at 24.60, 2.00 and 45.75 g kg-1.

Taxon
pearl milletCenchrus americanust0
Treatment
goat manure was applied combined with the irrigatione0
Outcome
plant N, P and K contente0
Direction
higheste0
Value
24.60; 2.00; 45.75 g kg-1e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus americanus
Cenchrus americanus · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“plant N, P and K content (24.60; 2.00; 45.75 g kg-1 of N, P and K, respectively) the highest values where found where the goat manure was applied combined with the irrigation”

✓ located verbatim in the source · abstract, characters 876–1050 · show in text ↑
t0

“on pearl millet cultivated in Brazilian semi-arid”

✓ located verbatim in the source · abstract, characters 86–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Organic amendments increased dry biomass by 723.38% versus control.

Taxon
pearl milletCenchrus americanust0
Treatment
organic amendmentse0
Outcome
plant dry biomass productione0
Direction
increasede0
Value
723.38e0
Comparator
controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus americanus
Cenchrus americanus · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“organic amendments can affect plant dry biomass production and crude protein content (increased by 723.38 and 223.73% compared to control, respectively)”

✓ located verbatim in the source · abstract, characters 1078–1230 · show in text ↑
t0

“on pearl millet cultivated in Brazilian semi-arid”

✓ located verbatim in the source · abstract, characters 86–135 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Organic amendments increased crude protein by 223.73% versus control.

Taxon
pearl milletCenchrus americanust0
Treatment
organic amendmentse0
Outcome
crude protein contente0
Direction
increasede0
Value
223.73%e0
Comparator
controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus americanus
Cenchrus americanus · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“organic amendments can affect plant dry biomass production and crude protein content (increased by 723.38 and 223.73% compared to control, respectively)”

✓ located verbatim in the source · abstract, characters 1078–1230 · show in text ↑
t0

“on pearl millet cultivated in Brazilian semi-arid”

✓ located verbatim in the source · abstract, characters 86–135 · show in text ↑

irrigation · growth · Cenchrus americanus (pearl millet)Positive and negative results

14 papers: 12 positive, 2 negative or no effect

11 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. negative
  3. positive

10 papers more in this group

See all 14 papers →

organic · yield · Cenchrus americanus (pearl millet)Positive and negative results

31 papers: 28 positive, 3 negative or no effect

27 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

27 papers more in this group

See all 31 papers →

fertilization · growth · Cenchrus americanus (pearl millet)Positive and negative results

70 papers: 68 positive, 2 negative or no effect

67 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. no effect
  3. positive

66 papers more in this group

See all 70 papers →

fertilization · nutrient: content · Cenchrus americanus (pearl millet)Positive and negative results

75 papers: 72 positive, 3 negative or no effect

71 papers in the same direction as this paper · 3 in the opposite direction

  1. no effect
  2. negative
  3. no effect

71 papers more in this group

See all 75 papers →

organic · quality: protein · Cenchrus americanus (pearl millet)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

irrigation · nutrient: content · Cenchrus americanus (pearl millet)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

fertilization · quality: protein · Cenchrus americanus (pearl millet)Results agree

43 papers: 43 positive, 0 negative or no effect

42 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

39 papers more in this group

See all 43 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.