Efeito Da Fertirrigação Com Potássio Sobre O Solo E Produtividade Do Morangueiro

Gomes, Edilson Ramos; Broetto, Fernando; Queluz, João Gabriel Thomaz; Bressan, Dayanne Fabrício

doi:10.15809/irriga.2015v1n1p107

Cited by 3 publications

(3 citation statements)

References 26 publications

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“…The increase in soil electrical conductivity was also observed by Gomes et al (2015), when applying potassium doses in strawberry cultivation, saline effect was observed on the soil and toxicity to plants at the highest dose of potassium applied. Anjos et al (2015) who also observed an increase in electrical conductivity from potassium fertilization, emphasized the saline effect of KCl applied via fertigation.…”

Section: Resultsmentioning

confidence: 76%

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Yield and leaf concentrations of nutrients of melon crop and fertility of soil fertigated with N and K

Filho

Júnior

Medeiros

et al. 2020

Rev. bras. eng. agríc. ambient.

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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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Section: Resultsmentioning

confidence: 76%

“…However, the traditional management of fertigation has led to excessive losses and applications, justifying the need for better control to guarantee both economic and environmental improvement (Anjos et al, 2015;Gomes et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Yield and leaf concentrations of nutrients of melon crop and fertility of soil fertigated with N and K

Filho

Júnior

Medeiros

et al. 2020

Rev. bras. eng. agríc. ambient.

View full text Add to dashboard Cite

show abstract

“…Além de fatores naturais que provocam a salinização dos solos como o material de origem, o uso exagerado de fertilizantes químicos em conjunto com a irrigação aplicada de forma errônea também pode contribuir para o aumento dos níveis de salinidade. Nota-se que esses efeitos são mais acentuados sob condições de cultivo protegido, mesmas condições em que são produzidas a maioria das hortaliças no Brasil (GOMES et al, 2015).…”

Section: Introductionunclassified

Crescimento Da Alface Irrigada Com Água Salina Sob Competição

Santos¹,

Guimarães²,

Silva³

et al. 2022

Ciências Agrárias: O Avanço Da Ciência No Brasil - Volume 5

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Physiological Changes and Yield Components of Safflower (Carthamus tinctorius L.) Lines as a Function of Water Deficit and Recovery in the Flowering Phase

et al. 2023

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Since climate changes have caused water restrictions, safflower stands out as an alternative crop due to its adaptability to restrictive soil and climate conditions. Thus, this research aimed to evaluate the physiological and yield performance of four safflower lines (IMA 02, IMA 04, IMA 14, and IMA 21) under two water regimes [without water deficiency—around 22% soil moisture content—100% of field capacity (FC); and with water deficiency—50% of FC]. The water regimes were imposed for 30 days during the flowering phase, followed by rehydration for 20 days. Water deficiency decreased relative water content, water potential, photosynthetic pigment contents, photosynthetic performance, maximum variable and potential quantum yield of PSII, electron transport rate, and photochemical quenching. In contrast, it increased electrolyte leakage, water use efficiency, and non-photochemical quenching. The decreases in photochemical efficiency and photosynthetic performance as a function of water deficiency caused reductions in the number of capitula, 100-grain mass, and harvest index, with more significant reductions in IMA 02, which was considered susceptible to soil water changes. IMA 04, IMA 14, and IMA 21 were considered tolerant because their physiological variables and yield components were less affected by water restriction, and they also showed recovery after rehydration compared to IMA 02. Thus, these lines can be recommended for commercial use, and safflower breeding programs aiming to select superior genotypes under drought conditions.

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Efeito Da Fertirrigação Com Potássio Sobre O Solo E Produtividade Do Morangueiro

Cited by 3 publications

References 26 publications

Yield and leaf concentrations of nutrients of melon crop and fertility of soil fertigated with N and K

Yield and leaf concentrations of nutrients of melon crop and fertility of soil fertigated with N and K

Crescimento Da Alface Irrigada Com Água Salina Sob Competição

Physiological Changes and Yield Components of Safflower (Carthamus tinctorius L.) Lines as a Function of Water Deficit and Recovery in the Flowering Phase

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