Study on change in microenvironment under different colour shade nets and its impact on yield of spinach (Spinacia oleracea L.)

MEENA, REKHA KUMARI; Vashisth, Ananta; Singh, Ravender; Singh, Balraj; MANJAIH, K. M.

doi:10.54386/jam.v16i1.1493

Cited by 12 publications

(8 citation statements)

References 10 publications

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“…Gaurav et al (2016) found that the DLI was greater under white shade than under red or black shade. Similarly, Meena et al (2014) found that the photosynthetic photon flux was greatest under pearl shade than under red, green, or black shade. Air temperature was greatest under red shade and lowest under aluminet shade at 31.3 C and 29.7 C, respectively.…”

Section: Resultsmentioning

confidence: 82%

Colored Shade Nets Affect Growth but Not Flowering of Four Greenhouse-grown Potted Ornamental Species

Singh,

Dunn,

Fontanier

et al. 2023

horts

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The color of horticultural shade nets is known to influence crop growth and quality because of variations in the amount and quality of light. Four ornamental plant species (celosia, begonia, gerbera, and fountain grass) were grown under aluminet, pearl, and red shade nets plus black as the control at 50% shade intensity for 8 weeks. Black had the least transmittance (∼10% to 30% of ambient) within the red spectrum (620–750 nm), whereas red had the greatest at ∼70% to 80%. Aluminet and pearl resulted in a similar reduction in photosynthetic photon flux at ∼50% to 55% and ∼55% to 65% of ambient, respectively. Aluminet increased the shoot dry weight for begonia and celosia, whereas no differences among shade nets were seen for gerbera or fountain grass. The chlorophyll concentration was greatest under aluminet for each species except begonia. Shade net color did not affect flower number.

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Section: Resultsmentioning

confidence: 82%

Colored Shade Nets Affect Growth but Not Flowering of Four Greenhouse-grown Potted Ornamental Species

Singh,

Dunn,

Fontanier

et al. 2023

horts

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“…The minimum (4.04 t/ha) fruit yield was found in the Control which was statistically at par with all other treatments. High amount of nitrogen and organic carbon present in Goat manure + Urea significantly increased the rate of photosynthesis followed by the higher amount of food storage and flowering resulting higher yield (Meena et al, 2019).…”

Section: Effect Of the Treatments On Final Mean Fruit Yieldmentioning

confidence: 99%

Effect of combined application of urea and organic manures on soil acidity along with the growth and yield attributes of okra at Lamjung, Nepal

Basnet,

Khatri

2023

Arch. Agric. Environ. Sci.

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An experiment was conducted in horticulture farm of Institute of Agriculture and Animal Science, Lamjung Campus, Nepal to evaluate the effect of combined application of Urea and Organic manures on soil acidity along with the growth and yield attributes of Okra. The experiment was set up under Randomized Complete Block Design (RCBD) comprising five treatments replicated four times. The various treatments used in the experiment were Cow manure + Urea, Buffalo manure + Urea, Goat manure + Urea, Buffalo manure + Goat manure + Urea and the Untreated Control. The required doses of Nitrogen for the crop were applied through treatments and that of Phosphorous and Potassium was petitioned from Single Super Phosphate (SSP) and Muriate of Potash (MOP), respectively. The quantities of nutrients were put in as recommended by Nepal Agricultural Research Council (NARC) (i.e., 200:180:60 kg NPK per ha). The effect of Goat manure + Urea was found superior against plant height at 30 DAS (13.52 cm) and 45 DAS (32.15 cm), leaf area throughout the growth stage and in final mean fruit yield (12.33 t/ha). Meanwhile, the impact of Cow manure + Urea was found superior against plant height at 60 DAS (46.67 cm) and in case of reducing soil acidity (Soil pH = 6.75). Eventually, the experiment suggests the farmers to use Goat manure + Urea for desirable Okra production considering soil health and also with the application of Cow manure + Urea in the interval of (2-3) years ensuring the control over soil acidification.

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“…Retamales et al (2008) likewise reported shade netting had little to no effect on air and soil temperature in highbush blueberry. Others, on the other hand, observed that shade netting reduced air and soil temperature in crops such as spinach (Meena et al, 2014) and bell pepper (Dıáz-Peŕez, 2013). The limited effects of shading on temperature in the present study could have been related to the relatively small size of the shading structures, which probably provided enough air circulation underneath to limit temperature gradients.…”

Section: Shade Nettingmentioning

confidence: 99%

“…Shade netting is commonly used to protect agricultural crops from excessive heat and radiation, and in warm climates, has been shown to improve growth and production of highbush blueberry (Lobos et al, 2013;Retamales et al, 2008). The benefit is usually attributed to a reduction of ultraviolet radiation (Lobos and Hancock, 2015), but it could also be related to its effects on air and soil temperature (Dıáz-Peŕez, 2013;Meena et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Strategies to reduce supraoptimal temperatures in the root zone during field and containerized production of highbush blueberry in warm climates

Machado¹,

Bryla²,

Correia³

2023

Acta Hortic.

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The roots of highbush blueberry (Vaccinium sp.) are sensitive to high temperatures and tend to grow poorly in warm soils or warm soilless media. Three experiments were conducted to evaluate strategies for reducing temperatures in the root zone in Évora, Portugal, where soil can reach temperatures >45°C. The first experiment was conducted in a small planting of 'Ozarkblue' blueberry. Treatments included bare soil, a 10-cm-deep layer of aged pine bark mulch, and black, green, or white geotextile landscape fabric. Bark mulch and green landscape fabric resulted in the lowest mid-day soil temperatures among the treatments, which improved canopy development and survival of the plants during establishment. White geotextile fabric also reduced soil temperature but resulted in a considerable amount of weed growth under the fabric. The second experiment was likewise conducted on 'Ozarkblue', but, in this case, the plants were grown in 40-L pots filled with a soilless mix of three parts peat, two parts pine bark, and one part humus, by volume. Treatments included black pots and black pots covered with white geotextile landscape fabric. After a year, canopy volume of the plants was greater in black pots than in white pots; however, yield was not affected by pot color. The third experiment was conducted in a 2-year-old planting of 'Legacy' blueberry. Treatments included no shade and 60% green shade netting. The netting had no effect on soil temperature in the root zone because: 1) the canopy of the plants intercepted the majority of the radiation at midday, and 2) frequent irrigation mitigated changes in soil temperature. Based on these results, bark mulch and green landscape fabric appear to be the best options for reducing temperatures in the root zone of blueberry in warm climates.

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Study on change in microenvironment under different colour shade nets and its impact on yield of spinach (Spinacia oleracea L.)

Cited by 12 publications

References 10 publications

Colored Shade Nets Affect Growth but Not Flowering of Four Greenhouse-grown Potted Ornamental Species

Colored Shade Nets Affect Growth but Not Flowering of Four Greenhouse-grown Potted Ornamental Species

Effect of combined application of urea and organic manures on soil acidity along with the growth and yield attributes of okra at Lamjung, Nepal

Strategies to reduce supraoptimal temperatures in the root zone during field and containerized production of highbush blueberry in warm climates

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