Abstract
Three legumes (mungbean, bushbean, and soybean) and sweet potato (control) were planted during the first cropping. After harvesting each crop, the residues except those of sweet potato were plowed under and incorporated into the soil. The final planting of sweet potato was done subsequently after the legume residues had been decomposed. Results showed that there was a significant increase in the weight and length of vines of the three legumes. Weight and number of marketable tubers, weight of non-marketable tubers, and total tuber yield greatly increased in plots previously planted to bushbeans and soybeans while the said parameters had no effect on mungbeans. Tuber yield and other agronomic characters were positively influenced by the different fertilizer levels. Fertilizer level of 0-30-60 kg/ha increased considerably the tuber yield of sweet potato planted after bushbeans or soybeans. Cost and returns analysis revealed that, regardless of the level of fertilizer applied, higher net profits were obtained from plots previously planted to bushbeans and soybeans. The best result was noted in the continuous sweet potato cropping treated with 60-60-60 kg/ha on both croppings. Considering net returns per unit time, however, alternate cropping of sweet potato with bushbeans or soybeans gave greater output in addition to the improved physical conditions of the soil.
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 12
Claim · model-written summary
Bushbean preceding crops increased marketable tuber weight and number, non-marketable tuber weight, and total yield.
- Taxon
- sweet potato
_Flower.jpg?width=60)
Ipomoea batatase1 - Treatment
- bushbeanse0
- Outcome
- Weight and number of marketable tubers, weight of non-marketable tubers, and total tuber yielde0
- Direction
- greatly increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Weight and number of marketable tubers, weight of non-marketable tubers, and total tuber yield greatly increased in plots previously planted to bushbeans and soybeans”
e1“crop of sweet potato”
Claim · model-written summary
Soybean preceding crops increased marketable tuber weight and number, non-marketable tuber weight, and total yield.
- Taxon
- sweet potatoIpomoea batatase1
- Treatment
- soybeanse0
- Outcome
- Weight and number of marketable tubers, weight of non-marketable tubers, and total tuber yielde0
- Direction
- greatly increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weight and number of marketable tubers, weight of non-marketable tubers, and total tuber yield greatly increased in plots previously planted to bushbeans and soybeans”
e1“crop of sweet potato”
Claim · model-written summary
Mungbean preceding crops had no effect on those tuber parameters.
- Taxon
- sweet potatoIpomoea batatase1
- Treatment
- mungbeanse0
- Outcome
- the said parameterse0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the said parameters had no effect on mungbeans”
e1“crop of sweet potato”
Claim · model-written summary
Fertilizer levels positively influenced tuber yield and other agronomic characters.
- Taxon
- sweet potatoIpomoea batatase1
- Treatment
- different fertilizer levelse0
- Outcome
- Tuber yield and other agronomic characterse0
- Direction
- positively influencede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tuber yield and other agronomic characters were positively influenced by the different fertilizer levels”
e1“crop of sweet potato”
Claim · model-written summary
The 0-30-60 kg/ha fertilizer level increased sweet potato tuber yield after bushbeans.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- Fertilizer level of 0-30-60 kg/hae0
- Outcome
- tuber yielde0
- Direction
- increased considerablye0
- Qualifier
- after bushbeanse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilizer level of 0-30-60 kg/ha increased considerably the tuber yield of sweet potato planted after bushbeans or soybeans”
Claim · model-written summary
The 0-30-60 kg/ha fertilizer level increased sweet potato tuber yield after soybeans.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- Fertilizer level of 0-30-60 kg/hae0
- Outcome
- tuber yielde0
- Direction
- increased considerablye0
- Qualifier
- soybeanse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilizer level of 0-30-60 kg/ha increased considerably the tuber yield of sweet potato planted after bushbeans or soybeans”
Claim · model-written summary
Prior bushbeans produced higher net profits regardless of fertilizer level.
- Taxon
- sweet potatoIpomoea batatase1
- Treatment
- bushbeanse0
- Outcome
- net profitse0
- Direction
- highere0
- Qualifier
- regardless of the level of fertilizer appliede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“regardless of the level of fertilizer applied, higher net profits were obtained from plots previously planted to bushbeans and soybeans”
e1“crop of sweet potato”
Claim · model-written summary
Prior soybeans produced higher net profits regardless of fertilizer level.
- Taxon
- sweet potatoIpomoea batatase1
- Treatment
- soybeanse0
- Outcome
- net profitse0
- Direction
- highere0
- Qualifier
- regardless of the level of fertilizer appliede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“regardless of the level of fertilizer applied, higher net profits were obtained from plots previously planted to bushbeans and soybeans”
e1“crop of sweet potato”
Claim · model-written summary
Continuous sweet potato cropping with 60-60-60 kg/ha on both crops gave the best result.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- 60-60-60 kg/ha on both croppingse0
- Outcome
- best resulte0
- Direction
- beste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best result was noted in the continuous sweet potato cropping treated with 60-60-60 kg/ha on both croppings”
Claim · model-written summary
Alternating sweet potato with bushbeans gave greater net returns per unit time.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- alternate cropping of sweet potato with bushbeanse0
- Outcome
- net returns per unit timee0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Considering net returns per unit time, however, alternate cropping of sweet potato with bushbeans or soybeans gave greater output”
Claim · model-written summary
Alternating sweet potato with soybeans gave greater net returns per unit time.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- soybeanse0
- Outcome
- net returns per unit timee0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Considering net returns per unit time, however, alternate cropping of sweet potato with bushbeans or soybeans gave greater output”
Claim · model-written summary
Alternating sweet potato with legumes improved soil physical conditions.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- alternate cropping of sweet potato with bushbeans or soybeanse0
- Outcome
- physical conditions of the soile0
- Direction
- improvede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alternate cropping of sweet potato with bushbeans or soybeans gave greater output in addition to the improved physical conditions of the soil”
The same questions in other papers
Glycine max · yield · Ipomoea batatas (sweet potato)Positive and negative results
2 in the opposite direction
- negative
- negative
fertilization · yield · Ipomoea batatas (sweet potato)Positive and negative results
125 papers in the same direction as this paper · 18 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- no effect
141 papers more in this group
See all 145 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.