Abstract
Pot and field experiments were conducted to compare the effects of dairy cow, goat and poultry manures on soil available levels of N and P and amaranths yield and root growth. The three amendments were applied on Oxisols at 100, 150 and 170 kg N/ha in a split plot design and replicated three times. Pot experiment lasted for one month whereas field experiment was conducted over three monthly crop cycles. Results of both experiments indicated that applications of the three manures significantly (P < 0.01) increased soil available levels of N and P shoot dry matter yield, taproot length and root dry weight. Comparison of the responsesfrom the three manures revealed that for all the parameters evaluated the trend was; Poultry manure > goat manure > dairy cow manure. This was largely attributed to differences in total N, total P, C/N and C/P ratios of the amendments. Field experiment results revealed that responseswere highest after the third crop harvest suggesting that mineralization of organic N and P increased with time. Based on fertilizer recommendations of N and P for Southern highlands of Tanzania and the highest rate used in this study (170 kg N/ha), applications of 5.8 tons/ha, 9.8 tons/ha and 13.4 tons/ha of poultry, goat and dairy cow manure will suffice the equirement of 40 kg N/ha and 20 kg P/ha recommended for most field crops.
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Claims 8
Claim · model-written summary
Manure applications increased soil available N and P.
- Taxon
- amaranthus
_with_green_foliage%2C_photographed_in_Tamil_Nadu%2C_India.jpg?width=60)
Amaranthust0 - Treatment
- three manurese0
- Outcome
- soil available levels of N and Pe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_with_green_foliage%2C_photographed_in_Tamil_Nadu%2C_India.jpg?width=500)
Verbatim
e0“applications of the three manures significantly (P < 0.01) increased soil available levels of N and P”
t0“amaranthus (amaranthus cruentus l.)”
Claim · model-written summary
Manure applications increased shoot dry matter yield.
- Taxon
- amaranthusAmaranthust0
- Treatment
- three manurese0
- Outcome
- shoot dry matter yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applications of the three manures significantly (P < 0.01) increased soil available levels of N and P shoot dry matter yield”
t0“amaranthus (amaranthus cruentus l.)”
Claim · model-written summary
Manure applications increased taproot length and root dry weight.
- Taxon
- amaranthusAmaranthust0
- Treatment
- three manurese0
- Outcome
- taproot length and root dry weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applications of the three manures significantly (P < 0.01) increased soil available levels of N and P shoot dry matter yield, taproot length and root dry weight”
t0“amaranthus (amaranthus cruentus l.)”
Claim · model-written summary
Poultry manure ranked above goat manure, which ranked above dairy cow manure, across evaluated parameters.
- Taxon
- amaranthusAmaranthust0
- Outcome
- Poultry manure > goat manure > dairy cow manuree0
- Direction
- Poultry manure > goat manure > dairy cow manuree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for all the parameters evaluated the trend was; Poultry manure > goat manure > dairy cow manure”
t0“amaranthus (amaranthus cruentus l.)”
Claim · model-written summary
Field responses were highest after the third crop harvest.
- Taxon
- amaranthusAmaranthust0
- Outcome
- responseswere higheste0
- Direction
- higheste0
- Qualifier
- after the third crop harveste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiment results revealed that responseswere highest after the third crop harvest”
t0“amaranthus (amaranthus cruentus l.)”
Claim · model-written summary
The authors recommend 5.8 tons/ha poultry manure for the stated N and P requirement.
- Taxon
- amaranthusAmaranthust0
- Outcome
- applications of 5.8 tons/hae0
- Value
- 5.8 tons/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applications of 5.8 tons/ha, 9.8 tons/ha and 13.4 tons/ha of poultry, goat and dairy cow manure will suffice the equirement of 40 kg N/ha and 20 kg P/ha”
t0“amaranthus (amaranthus cruentus l.)”
Claim · model-written summary
The authors recommend 9.8 tons/ha goat manure for the stated N and P requirement.
- Taxon
- amaranthusAmaranthust0
- Outcome
- 9.8 tons/hae0
- Value
- 9.8 tons/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applications of 5.8 tons/ha, 9.8 tons/ha and 13.4 tons/ha of poultry, goat and dairy cow manure will suffice the equirement of 40 kg N/ha and 20 kg P/ha”
t0“amaranthus (amaranthus cruentus l.)”
Claim · model-written summary
The authors recommend 13.4 tons/ha dairy cow manure for the stated N and P requirement.
- Taxon
- amaranthusAmaranthust0
- Outcome
- 13.4 tons/hae0
- Value
- 13.4 tons/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applications of 5.8 tons/ha, 9.8 tons/ha and 13.4 tons/ha of poultry, goat and dairy cow manure will suffice the equirement of 40 kg N/ha and 20 kg P/ha”
t0“amaranthus (amaranthus cruentus l.)”
The same questions in other papers
fertilization · growth · AmaranthusResults differ
14 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- positive
12 papers more in this group
See all 16 papers →fertilization · yield · AmaranthusPositive and negative results
25 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- positive
23 papers more in this group
See all 27 papers →fertilization · soil: chemistry · AmaranthusResults agree
1 paper in the same direction as this paper
- positive
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.