Crescimento de leguminosas utilizadas na adubação verde em diferentes níveis de sais na água de irrigação

Santos, Roseclênia Alves; Carneiro, Paulo Torres; Santos, Valdevan Rosendo dos; Costa, Leonardo Correia; Santos, Cícero Gomes dos; Neto, Antônio Lucrécio dos Santos

doi:10.1590/1807-1929/agriambi.v18n12p1255-1261

Cited by 9 publications

(13 citation statements)

References 25 publications

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“…Initial seedling growth from 20 to 40 DAE ( Figure 3) remained constant in this experiment, and this phase, in previous studies with crotalaria, was little influenced by biotic factors, with no significant negative effect at different salinity levels in irrigation water on growth components of C. juncea and C. spectabilis seedlings (Santos et al 2014).…”

Section: Resultssupporting

confidence: 67%

“…The non-viability of nodulation throughout the plant cycle, which started shortly after the reproductive period, is indicative that this mechanism present in the plant is an adaptation strategy that guarantees biomass accumulation. Such accumulation will contribute to improving the physical, chemical and biological attributes of the soil during growth and development of subsequent crops, with effective N supply of 170 to 300 kg ha -1 (Santos andFontanétti 2007, Vargas et al 2011).…”

Section: Resultsmentioning

confidence: 99%

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Phenology and phytomass of Crotalaria incana L. in the Eastern Amazon, Brazil

Santos¹,

Oliveira²,

Moura³

et al. 2019

Commun. Plant Sci.

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Crotalaria incana presents alkaloids that, when ingested by ruminants, culminates in the death of the animals. Given the problems surrounding the presence of the plant in pasture areas, the objective of this research was to determine the phenology and development of C. incana plants under controlled conditions in the Eastern Amazon. The experimental design was completely randomized with four replications and eight treatments. The treatments consisted of plant collection times, from 20 to 160 days after plant emergence. The following parameters were evaluated: number of leaves, leaf length, plant height, number of flowers, number of pods, number of seeds per pod, total number of nodules and nodule viability, in addition to dry weight of shoots, roots, flowers and pods. Data were undergoing regression analysis and simple linear Pearson correlation. The vegetative and reproductive phase lasted until 60 and 140 after emergence, respectively. Plant management should be performed within 80 days of emergence. Highlighted Conclusions 1. The vegetative state lasts up to 60 days after emergence; at this interval, the species can be incorporated into the soil without risk of increasing the emergence flow of the plant. 2. Control of the species on pasture should be performed before 80 days after emergence.

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Section: Resultssupporting

confidence: 67%

Section: Resultsmentioning

confidence: 99%

Phenology and phytomass of Crotalaria incana L. in the Eastern Amazon, Brazil

Santos¹,

Oliveira²,

Moura³

et al. 2019

Commun. Plant Sci.

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“…After the cultivation, the values were 52.9, 61.1 and 61.7 mmolc dm -3 for TW, ANE and AE respectively, considering the average value obtained for all green manure. Santos et al (2014), after the cultivation of Atriplex nummularia in saline-sodic soil, observed increase of Ca 2+ and Mg 2+ in the soil, raising the CEC.…”

Section: Green Manures Tw Ane Ae ---------------Kg M -2 ---------------mentioning

confidence: 91%

“…According to Santos et al, (2014) some legumes (family Fabaceae), as Crotalaria juncea and Crotalaria spectabilis, present resistance to high salinity levels for certain period of time. The legumes, in symbiotic association to bacteria, also contribute to the biological nitrogen fixation.…”

Section: Introductionmentioning

confidence: 99%

Sodium Phytoremediation by Green Manure Growing in Soil Irrigated With Wastewater of Dairy Industry

Donatti¹,

Gomes

Menegassi

et al. 2017

Eng. Agríc.

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Phytoremediation is a technique that uses plants to decontaminate soils containing harmful organic and inorganic elements. The aim of this study was to evaluate the potential of three species of forage green manure in phytoremediation of saline soil irrigated with treated effluent from dairy processing plant. The design used was randomized blocks (3x3) with four replicates. The treatments were three different water sources (anaerobic treated effluent, aerobic treated effluent, and tap water) applied to growing table beets combined with the post-cultivation of three forage green manure: Calopogonium mucunoides Desv (Calopo), Cajanus cajan (L.) Millsp (Pigeon pea), and Pennisetum glaucum (L.) R. Brown (Millet). The treatment with Millet had higher dry mass production with all water sources, although showing growth reduction after irrigation with anaerobic treated effluent. Millet presented higher sodium extraction efficiency (22.4 kg ha -1 ); however, it was not effective in soil phytoremediation because the exchangeable sodium percentage was not reduced to levels that allowed for new effluent input.

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“…Uma alternativa à disposição do efluente em corpos hídrico é sua utilização na irrigação de espécies com tolerância a salinidade. Entre os adubos verdes, as leguminosas foram estudadas por Santos et al (2014), sendo que a Crotalaria juncea não teve seu desenvolvimento afetado por salinidade de até 4 dS m -1 de condutividade elétrica. .…”

Section: 88unclassified

Minitomateiro consorciado com adubos verdes fertirrigados com efluente tratado de laticínio

Brichi¹

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Mini Tomato intercropped with fertirrigated green manure with treated dairy effluent The consumption of cherry tomato has been on the rise in the Brazilian salad market. The green manures in intercropping with the cherry tomato and the use of treated effluents from the dairy industry for irrigation are sustainable techniques that can allow the economic production of this crop The objective of the present work was to evaluate the productivity and post-harvest of the cherry tomato cultivated in a consortium system with different green manures, fertirrigated with treated dairy effluent. The experiment was carried out in a randomized complete block (5 x 2) with four green manures: Canavalia ensiformis (jack bean), Crotalaria spectabilis (Crotalaria-espectábilis), Lupinus albus (white lupine) and Pennisetum glaucum (millet) and one control (no green manuring), and two water sources used in fertigation (tap water and treated anaerobic effluent), with four replications. The effluent treated by anaerobic system was characterized biweekly throughout the experiment and were evaluated: foliar diagnosis of mini tomato, phytomass production of green manures and nutrient accumulation, productivity, chemical composition and fruit quality of mini tomato and water use efficiency. The highest levels of nitrogen were determined in the leaves of the single cherry tomato fertirrigated with tap water and for the cherry tomato in consortium with crotalaria-espectábilis fertirrigated with treated anaerobic effluent. The application of the treated dairy effluent adequately provided the nitrogen supply to the cherry tomato. The green manures, with the exception of millet, did not compete for nutrients with the cherry tomato, although, did not favor the productivity of the cherry tomato. The highest number of fruits occurred for the single crop and for the cherry tomato in consortium with white lupine. The fruits of the cherry tomato showed higher soluble solids contents when fertirrigated with treated dairy effluent. The crotalária-espectábilis and jack bean consortia had the greatest water use efficiencies in fruit production, and fertirrigated treatments with tap water showed higher WUE in comparison to fertirrigates with anaerobic effluent. The use of the treated anaerobic effluent of dairy reduced on average 90.89% of the application of nitrogen via fertilizer. It is possible to replace pure or potable water by treated dairy effluent in the cherry tomato fertirrigation.

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Crescimento de leguminosas utilizadas na adubação verde em diferentes níveis de sais na água de irrigação

Cited by 9 publications

References 25 publications

Phenology and phytomass of Crotalaria incana L. in the Eastern Amazon, Brazil

Phenology and phytomass of Crotalaria incana L. in the Eastern Amazon, Brazil

Sodium Phytoremediation by Green Manure Growing in Soil Irrigated With Wastewater of Dairy Industry

Minitomateiro consorciado com adubos verdes fertirrigados com efluente tratado de laticínio

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