Abstract
ABSTRACT The use of fertigation as a means of supplying the nutritional needs of crops is a technique widely used among producers. However, it is necessary to improve this technique due, mainly, to the risks of contamination of natural resources. Thus, the objective was to study the productivity and leaf contents of melon nutrients and soil fertility, which presents a high concentration of potassium, when fertigated with doses of nitrogen and potassium in the irrigation water. Five treatments were arranged in randomized blocks with six repetitions. Treatments consisted of combinations of concentrations, in mg L-1, of nitrogen (N) and potassium (K) applied in irrigation water (0-0), (50-0), (50-54), (0-54) and (100-108). The leaf concentrations of nutrients of melon were evaluated at 35 days after planting, and fruit yield and soil fertility at harvest time. The melon cultivated in soil with a high level of K and basal application of 18 kg ha-1 of N in the foundation did not increase production, when fertirrigated with nitrogen and potassium. Although the contents of K, Fe and B varied between the doses of N and K applied, the plants did not have nutritional deficiency. Fertilizer applications in increasing doses contribute to the accumulation of salts in the soil, increasing the risk of salinization.
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Claims 6
Claim · model-written summary
Nitrogen and potassium fertigation did not increase melon production in high-potassium soil with basal nitrogen.
- Taxon
- melon
.jpg?width=60)
Cucumis meloe0 - Treatment
- fertirrigated with nitrogen and potassiume0
- Outcome
- productione0
- Direction
- did not increasee0
- Qualifier
- soil with a high level of Ke0
- Comparator
- basal application of 18 kg ha-1 of Ne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The melon cultivated in soil with a high level of K and basal application of 18 kg ha-1 of N in the foundation did not increase production, when fertirrigated with nitrogen and potassium”
Claim · model-written summary
Leaf potassium content varied across applied nitrogen and potassium doses.
- Taxon
- melonCucumis meloe1
- Treatment
- doses of N and K appliede0
- Outcome
- contents of Ke0
- Comparator
- between the doses of N and K appliede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the contents of K, Fe and B varied between the doses of N and K applied”
e1“The melon cultivated in soil with a high level of K”
Claim · model-written summary
Leaf iron content varied across applied nitrogen and potassium doses.
- Taxon
- melonCucumis meloe1
- Treatment
- doses of N and K appliede0
- Outcome
- Fee0
- Comparator
- between the doses of N and K appliede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the contents of K, Fe and B varied between the doses of N and K applied”
e1“The melon cultivated in soil with a high level of K”
Claim · model-written summary
Leaf boron content varied across applied nitrogen and potassium doses.
- Taxon
- melonCucumis meloe1
- Treatment
- doses of N and K appliede0
- Outcome
- Be0
- Comparator
- between the doses of N and K appliede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the contents of K, Fe and B varied between the doses of N and K applied”
e1“The melon cultivated in soil with a high level of K”
Claim · model-written summary
The melon plants had no nutritional deficiency.
- Taxon
- melonCucumis meloe1
- Outcome
- did not have nutritional deficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the plants did not have nutritional deficiency”
e1“The melon cultivated in soil with a high level of K”
Claim · model-written summary
Increasing fertilizer doses accumulated salts in soil and raised salinization risk.
- Taxon
- melonCucumis meloe1
- Treatment
- Fertilizer applications in increasing dosese0
- Outcome
- accumulation of salts in the soile0
- Direction
- increasinge0
- Qualifier
- risk of salinizatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilizer applications in increasing doses contribute to the accumulation of salts in the soil, increasing the risk of salinization”
e1“The melon cultivated in soil with a high level of K”
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