Abstract
The substantial generation of organic waste together with increasing interest in developing sustainable agriculture heralds an opportunity for mobilizing the recycling of these materials as a source of organic matter and nutrients into a viable management strategy option. A field experiment was conducted to evaluate the use of compost derived from waste produced by the winery and distillery industries in a drip-irrigated melon crop traditionally grown in the area where these wastes are generated. A randomized complete block design was used with four treatments consisting of three different dose levels of compost: 7 (D1), 13 (D2) and 20 (D3) t ha−1 and a control (D0) without the application of compost. The effects of these treatments on plant growth, nitrogen (N) and phosphorus (P) accumulation as well as fruit yield and quality were studied. The application of compost produced a slight increase in plant biomass accompanied by changes in the relative growth rate (RGR) and net assimilation rate (NAR). As a result, a significant improvement in fruit yield was observed in the plots amended with D2, which met all the requirements to obtain elevated yields. In terms of environmental correctness applications were below the limits established by a number of impact indexes. Additionally, the application of compost improved fruit quality resulting in an enhancement of Brix degrees. Although the potential effects of N and P derived from compost were partially masked by other inputs of these nutrients into the system (N in irrigation water, P supplied through fertigation), an effect of P was observed resulting in an increase in the number of individual fruits in the plots amended with compost.
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Claims 7
Claim · model-written summary
Compost slightly increased melon biomass.
- Taxon
- melon crop
.jpg?width=60)
Cucumis melot0 - Treatment
- application of composte0
- Outcome
- plant biomasse0
- Direction
- increasee0
- Qualifier
- slighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The application of compost produced a slight increase in plant biomass accompanied by changes in the relative growth rate (RGR) and net assimilation rate (NAR).”
t0“melon crop”
Claim · model-written summary
Compost changed melon relative growth rate.
- Taxon
- melon cropCucumis melot0
- Treatment
- application of composte0
- Outcome
- relative growth rate (RGR)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of compost produced a slight increase in plant biomass accompanied by changes in the relative growth rate (RGR) and net assimilation rate (NAR).”
t0“melon crop”
Claim · model-written summary
Compost changed melon net assimilation rate.
- Taxon
- melon cropCucumis melot0
- Treatment
- application of composte0
- Outcome
- net assimilation rate (NAR)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of compost produced a slight increase in plant biomass accompanied by changes in the relative growth rate (RGR) and net assimilation rate (NAR).”
t0“melon crop”
Claim · model-written summary
D2 compost significantly improved melon fruit yield.
- Taxon
- melon cropCucumis melot0
- Treatment
- D2e0
- Outcome
- fruit yielde0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant improvement in fruit yield was observed in the plots amended with D2”
t0“melon crop”
Claim · model-written summary
Compost applications remained below impact-index limits.
- Taxon
- melon cropCucumis melot0
- Outcome
- applicationse0
- Direction
- belowe0
- Comparator
- limits established by a number of impact indexese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applications were below the limits established by a number of impact indexes”
t0“melon crop”
Claim · model-written summary
Compost increased melon Brix degrees.
- Taxon
- melon cropCucumis melot0
- Treatment
- application of composte0
- Outcome
- Brix degreese0
- Direction
- enhancemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of compost improved fruit quality resulting in an enhancement of Brix degrees”
t0“melon crop”
Claim · model-written summary
Compost-derived phosphorus increased the number of individual melon fruits.
- Taxon
- melon cropCucumis melot0
- Treatment
- composte0
- Compound
- Pe0
- Outcome
- number of individual fruitse0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an effect of P was observed resulting in an increase in the number of individual fruits in the plots amended with compost”
t0“melon crop”
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