Soil salinity, leaching, and cotton growth as affected by saline water drip irrigation and<i>N</i>fertigation

Wei, Min; Guo, Huijuan; Zhou, Guangwei; Zhang, Wen; Ma, Lijuan; Ye, Jun; Hou, Zhenan; Wu, Laosheng

doi:10.1080/09064710.2016.1181199

Cited by 12 publications

(5 citation statements)

References 37 publications

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“…There was a high movement as the N doses applied by fertigation increased, as occurred during the third growing season at 0.60 m depth (Figure 3D), in which there was a NO 3 movement of 0.155 kg NO 3 ha -1 for each increase unit in N dose applied to the soil by fertigation. Min et al(2016) and Silva et al (2016) have demonstrated that high rate of water infiltration in sandy soil can contribute to N movement to deep layers affecting NO 3 availability in the root zone to the plants. The leaching of NO 3 to water table is maximized by sandy texture, low organic matter, high permeability, low water holding capacity and high water application (GHIBERTO et al, 2015).…”

Section: Movement Of Nitratementioning

confidence: 99%

Nitrate and potassium movement in a sandy loam soil cultivated with fertigated grapevine (Vitis vinifera /L.) in the Brazilian semiarid

2018

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Fertigation can increase the efficiency of fertilizer application and facilitate the nutritional management of a crop. Thus, nitrate and potassium movements in a sandy loam soil were evaluated as function of fertilizer doses during three growing seasons of the grapevine cv. Syrah grafted on Paulsen 1103 rootstock (June to October 2013, February to June 2014, and August to November 2014) in Petrolina, state of Pernambuco, Brazil. Five doses of N (0, 15, 30, 60 and 120 kg ha-1) and five doses of K2O (0, 15, 30, 60 and 120 kg ha-1) were combined in a fractional 52 factorial design, totaling 13 combinations, in a randomized blocks experiment with four replications. The concentrations of nitrate and potassium in the soil solution were determined. Samples were collected by porous cup extractors installed at 0.4 and 0.6 m depths. The movement of these ions was obtained by the product between their concentration in the soil solution and the soil water flux density. The increase in nitrogen fertilization promoted a greater movement of NO3- (62.2 kg ha-1) in the soil. The movement of K+ was also observed in two growing seasons .

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Section: Movement Of Nitratementioning

confidence: 99%

Nitrate and potassium movement in a sandy loam soil cultivated with fertigated grapevine (Vitis vinifera /L.) in the Brazilian semiarid

2018

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“…The research on saline-alkali land has mainly focused on the control and improvement of soil salinization [12][13][14], the water and salt transportation mechanism [15], the effect of salinization on crop growth [16,17] and the relationship between groundwater depth and mineralization [18]. There have been few studies on the spatial distribution of soil salinity and groundwater depth [19],and how groundwater depth affects salinity.…”

Section: Introductionmentioning

confidence: 99%

Quantitative Analysis of Temporal and Spatial Variations of Soil Salinization and Groundwater Depth along the Yellow River Saline–Alkali Land

Wang

Liu

et al. 2022

Sustainability

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To study the spatial distribution of soil salinization, the temporal and spatial variations of groundwater depth, along the Yellow River saline–alkali land, were analyzed. GIS technology was used to conduct spatial interpolation and quantitative analysis in Shahao, including salinization data obtained before summer irrigation, and groundwater depth data for one hydrological year from long-term observation wells. The results indicate that the groundwater depth gradually shallows from south to north, consistent with the topography of the area, and soil salinization is greater in the central and northern parts of the study area. Alkaline soils are widespread in the surface-to-middle soil, accounting for 55.2–62.5% of the total land area. A total of 28.6% of the surface layer is heavily salinized. The crop emergence rate of heavily salinized cropland is only 30–50%. The high salt content of the Yellow River itself, freeze–thaw change and poor drainage are three important factors causing the high soil salinity along the Yellow River saline–alkali land. The changes of groundwater depth are divided into autumn irrigation, the freezing period and the crop-growth period. The return of soil salt in spring caused by autumn irrigation mainly affects the uppermost soil layer (0–100 mm depth).

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“…A alface (Lactuca sativa L.) é uma planta anual, proveniente da Ásia e pertencente à família da Asteraceae. É uma das hortaliças mais popular e consumida no Brasil, fonte de vitaminas, sais minerais e um produto de baixo valor calórico (OHSE et al, 2001).…”

Section: Introductionunclassified

“…A fertirrigação reduz as perdas de nutrientes em relação à adubação convencional, pois os fertilizantes são aplicados próximo ao sistema radicular e de forma ponderada durante o cultivo. Por outro lado, o manejo inadequado da irrigação e fertirrigação por gotejamento ocasiona perdas de nitrato por lixiviação e problemas de salinização do solo (MIN et al, 2016, TRIFONOV et al, 2018.…”

Section: Introductionunclassified

Potencial De Água No Solo E Fertirrigação Nitrogenada Na Produção E Trocas Gasosas Da Alface

Barbosa

Digner

Teixeira

et al. 2019

RBAI

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O estudo objetivou avaliar as trocas gasosas foliares, o crescimento da parte aérea e radicular de alface crespa, submetida a diferentes potenciais de água no solo (-10, -20 e -30 kPa) e fertirrigação com nitrato de amônio e ureia. O experimento foi realizado em túnel alto no delineamento de blocos casualizado. Durante o ciclo de cultivo mensurou-se as trocas gasosas foliares com auxílio do analisador de gases por infravermelho portátil e estimou-se a eficiência instantânea do uso da água e eficiência de carboxilação. Na colheita determinou-se a altura, diâmetro da parte aérea, comprimento radicular e massa fresca da parte aérea. Aos 22 dias após o transplantio (DAT), a aplicação de nitrato de amônio elevou a assimilação líquida de CO2, a concentração de carbono intercelular e a eficiência instantânea de carboxilação em 16%, 7% e 24%, respectivamente, em relação à ureia. Constatou-se que o potencial de -21 kPa elevou a assimilação líquida de CO2 em relação ao potencial de -33 kPa aos 22 DAT. Aos 36 DAT a fertirrigação com ureia no potencial de -10 kPa ocasionaou uma maior transpiração. O potencial de -21 kPa associado a fertirrigação com nitrato de amônio promoveu incremento da altura da alface e o potencial -10 kPa com fertirrigação de ureia elevou o diâmetro da parte aérea. As fontes de variação não ocasionaram efeitos significativos no comprimento radicular e massa fresca da parte aérea, os quais apresentaram valor médio de 13,89 cm e 211,14 g planta -1 , respectivamente.

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Soil salinity, leaching, and cotton growth as affected by saline water drip irrigation andNfertigation

Cited by 12 publications

References 37 publications

Nitrate and potassium movement in a sandy loam soil cultivated with fertigated grapevine (Vitis vinifera /L.) in the Brazilian semiarid

Nitrate and potassium movement in a sandy loam soil cultivated with fertigated grapevine (Vitis vinifera /L.) in the Brazilian semiarid

Quantitative Analysis of Temporal and Spatial Variations of Soil Salinization and Groundwater Depth along the Yellow River Saline–Alkali Land

Potencial De Água No Solo E Fertirrigação Nitrogenada Na Produção E Trocas Gasosas Da Alface

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