Sugarcane spatial-temporal monitoring and crop coefficient estimation through NDVI

Alface, Ângelo Baptista; Pereira, Sílvio Bueno; Filgueiras, Roberto; Cunha, Fernando França da

doi:10.1590/1807-1929/agriambi.v23n5p330-335

Cited by 23 publications

(20 citation statements)

References 15 publications

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“…According to Alface et al [19], the rapid and accurate estimation of Kc can be performed by measures of the normalized difference vegetation index (NDVI). The behavior of the NDVI of Italian zucchini cultivated conventionally and using recycled paper as mulch is shown in Fig 6A and 6C, respectively.…”

Section: Kc Estimation By Ndvimentioning

confidence: 99%

“…Alface et al [19] states that the spectral reflectance of agricultural crops can provide an indirect estimation of Kc values. This was confirmed by the Kc and NDVI curves in the present study.…”

Section: Kc Estimation By Ndvimentioning

confidence: 99%

“…One current option for estimating the crop coefficient (Kc) is the use of the vegetation index [19]. As the attribution of Kc values is directly related to the phenological cycle of the crop, studies suggest that the temporal profiles of the vegetation indices can be used [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

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Evapotranspiration and crop coefficients of Italian zucchini cultivated with recycled paper as mulch

et al. 2020

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Recycled paper has the potential to be used as a mulch for vegetable production and can be adopted for the cultivation of Italian zucchini. However, there have been no studies about the water savings or crop coefficient values used in irrigation management in this system; therefore, there is a need for more research. In view of the above, this study aimed to evaluate the effects of recycled paper mulch on evaporation and evapotranspiration in Italian zucchini and to determine the crop coefficients in its developmental stages. The study was carried out in two cultivation cycles conducted at the Lysimetric Station in Viçosa, MG, Brazil. The experiments were installed in a randomized block design with four replicates. Four lysimeter cultivation treatments were applied: without mulch (C); with recycled paper as mulch (CP); with only recycled paper (P); and with Bahia grass (G). Irrigation and drainage measurements were performed daily to calculate the crop and reference evapotranspiration, and thus the crop coefficient (Kc) values. The following characteristics were evaluated: fruit yield, NDVI and water productivity. For the cultivation of Italian zucchini using paper as mulch, Kc values of 0.54, 0.77 and 0.44 and Kcb values of 0.15, 0.45 and 0.18 are recommended for the initial, intermediate and final stages, respectively. NDVI can be used to estimate the Kc values for Italian zucchini. The use of recycled paper as mulch reduces the water consumption of Italian zucchini.

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Section: Kc Estimation By Ndvimentioning

confidence: 99%

Section: Kc Estimation By Ndvimentioning

confidence: 99%

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Evapotranspiration and crop coefficients of Italian zucchini cultivated with recycled paper as mulch

et al. 2020

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“…The use of not a simple relationship, but a normalized difference between the minimum and maximum reflections increases the measurement accuracy, reduces the effects of such phenomena as differences in the light of a picture, clouds, haze, radiation absorption by the atmosphere, etc. A standardized continuous gradient or discrete scale is used to display the NDVI index showing values in the range -1,..., 0, 0.1, ... 1 in% [13][14][15][16][17][18][19][20].…”

Section: Ndvimentioning

confidence: 99%

Implementation of the Ers for Yield Analyzing of Irrigated Lands of South Kazakhstan

Onglassynov¹,

Akylbekova²,

Sotnikov³

et al. 2019

OF THE ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN

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NAS RK is pleased to announce that News of NAS RK. Series of geology and technical sciences scientific journal has been accepted for indexing in the Emerging Sources Citation Index, a new edition of Web of Science. Content in this index is under consideration by Clarivate Analytics to be accepted in the Science Citation Index Expanded, the Social Sciences Citation Index, and the Arts & Humanities Citation Index. The quality and depth of content Web of Science offers to researchers, authors, publishers, and institutions sets it apart from other research databases. The inclusion of News of NAS RK. Series of geology and technical sciences in the Emerging Sources Citation Index demonstrates our dedication to providing the most relevant and influential content of geology and engineering sciences to our community. Қазақстан Республикасы Ұлттық ғылым академиясы "ҚР ҰҒА Хабарлары. Геология жəне техникалық ғылымдар сериясы" ғылыми журналының Web of Science-тің жаңаланған нұсқасы Emerging Sources Citation Index-те индекстелуге қабылданғанын хабарлайды. Бұл индекстелу барысында Clarivate Analytics компаниясы журналды одан əрі the Science Citation Index Expanded, the Social Sciences Citation Index жəне the Arts & Humanities Citation Index-ке қабылдау мəселесін қарастыруда. Webof Science зерттеушілер, авторлар, баспашылар мен мекемелерге контент тереңдігі мен сапасын ұсынады. ҚР ҰҒА Хабарлары. Геология жəне техникалық ғылымдар сериясы Emerging Sources Citation Index-ке енуі біздің қоғамдастық үшін ең өзекті жəне беделді геология жəне техникалық ғылымдар бойынша контентке адалдығымызды білдіреді. НАН РК сообщает, что научный журнал «Известия НАН РК. Серия геологии и технических наук» был принят для индексирования в Emerging Sources Citation Index, обновленной версии Web of Science. Содержание в этом индексировании находится в стадии рассмотрения компанией Clarivate Analytics для дальнейшего принятия журнала в the Science Citation Index Expanded, the Social Sciences Citation Index и the Arts & Humanities Citation Index. Web of Science предлагает качество и глубину контента для исследователей, авторов, издателей и учреждений. Включение Известия НАН РК. Серия геологии и технических наук в Emerging Sources Citation Index демонстрирует нашу приверженность к наиболее актуальному и влиятельному контенту по геологии и техническим наукам для нашего сообщества.

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“…With the emergence of remote sensing and the possibility of identifying changes in surface cover through orbital sensors, potential applications in agriculture have also emerged (Cattani et al, 2017;Khanal et al, 2017;Yang et al, 2017). In irrigated agriculture, good results have been obtained in the estimation of crop coefficient by remote sensing (Alface et al, 2019;Lima et al, 2019;Sales et al, 2016Sales et al, , 2017.…”

Section: Introductionmentioning

confidence: 99%

Water stress coefficient determined by orbital remote sensing techniques

Alves

Filgueiras

Cunha

et al. 2020

Rev. bras. eng. agríc. ambient.

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In regions where the irrigated area is increasing and water availability is reduced, such as the West of the Bahia state, Brazil, the use of techniques that contribute to improving water use efficiency is paramount. One of the ways to improve irrigation is by improving the calculation of actual evapotranspiration (ETa), which among other factors is influenced by soil drying, so it is important to understand this relationship, which is usually accounted for in irrigation management models through the water stress coefficient (Ks). This study aimed to estimate the water stress coefficient (Ks) through information obtained via remote sensing, combined with field data. For this, a study was carried out in the municipality of São Desidério, an area located in western Bahia, using images of the Landsat-8 satellite. Ks was calculated by the relationship between crop evapotranspiration and ETa, calculated by the Simple Algorithm for Evapotranspiration Retrieving (SAFER). The Ks estimated by remote sensing showed, for the development and medium stages, average errors on the order of 5.50%. In the final stage of maize development, the errors obtained were of 23.2%.

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Sugarcane spatial-temporal monitoring and crop coefficient estimation through NDVI

Cited by 23 publications

References 15 publications

Evapotranspiration and crop coefficients of Italian zucchini cultivated with recycled paper as mulch

Evapotranspiration and crop coefficients of Italian zucchini cultivated with recycled paper as mulch

Implementation of the Ers for Yield Analyzing of Irrigated Lands of South Kazakhstan

Water stress coefficient determined by orbital remote sensing techniques

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