Nitrogen Requirements of Drip Irrigated Strawberries Grown in Subtropical Environments

Kirschbaum, Daniel Santiago; Borquez, Ana Maria; Quipildor, S. L.; Corrêa, Márcio Cléber de Medeiros; Magen, H.; Imas, Patricia

doi:10.17660/actahortic.2006.708.12

Cited by 7 publications

(5 citation statements)

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“…KIRSCHBAUM et al (2006), testando doses de N em cultivares de morangueiro, constataram que houve perda de produção quando utilizaram doses acima de 155kg N ha -1 . HOCHMUTH et al (2006) avaliaram doses de N entre 0,28 e 1,40kg ha -1 por dia (50 a 250kg ha -1 por ciclo) e verificaram que a produção total de frutos aumentou quando as doses de N aumentaram até 0,54kg ha -1 por dia, ou seja, 96kg ha -1 .…”

Section: Resultsunclassified

Produção de morangos a partir de fertilizantes alternativos em pré-plantio

et al. 2011

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Section: Resultsunclassified

Produção de morangos a partir de fertilizantes alternativos em pré-plantio

et al. 2011

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“…The wide range of seasonal N applications (118-424 lb/acre), and the fact that N application was not correlated with fruit yield, suggested that substantial improvement in N management was possible. Strawberry yields in annual production systems have been reported to be maximized by no more than 120 lb/acre N in Florida (Hochmuth et al, 1996) and North Carolina (Miner et al, 1997), or 140 lb/acre N in Argentina (Kirschbaum et al, 2006). These sources reported fruit yields between %12 and 18 tons/acre, so higher seasonal N rates may be justified in California, given the much higher crop productivity.…”

Section: Growth Stagementioning

confidence: 99%

“…Little fertility research has been conducted in this region in recent decades even as improvements in cultivars and production practices have dramatically raised fruit yields, which now commonly exceed 25 tons/acre. While there is a substantial body of recent research on strawberry N requirements from other production areas (Hochmuth et al, 1996;Kirschbaum et al, 2006;Miner et al, 1997;Santos and Chandler, 2009), these studies report on production systems with different environmental conditions, shorter production seasons and lower yield potential, and therefore may not be directly applicable. Relevant research on other nutrients in strawberry production is very limited.…”

mentioning

confidence: 99%

Determination of Strawberry Nutrient Optimum Ranges through Diagnosis and Recommendation Integrated System Analysis

Bottoms

Bolda²,

Gaskell³

et al. 2013

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Diagnosis and recommendation integrated system (DRIS) leaf blade and petiole optimum nutrient ranges were developed through tissue sampling in 53 commercial strawberry (Fragaria ×ananassa) fields in the coastal valleys of central California in 2010 and 2011. All fields were in an annual production system using the day-neutral cultivar Albion. Leaf blades and petioles were sampled five times from early flowering through the fruit harvest period. Data on soil nutrient availability and grower fertilization practices were also collected. DRIS analysis was used to develop nutrient optimum ranges based on nutrient concentrations observed in nutritionally balanced, high-yield fields. Blade nitrogen (N), phosphorus (P), and potassium (K) concentrations declined from the vegetative stage until the main harvest period, and stabilized thereafter. Blade calcium (Ca), boron (B), and iron (Fe) increased over time while magnesium (Mg), sulfur (S), manganese (Mn), zinc (Zn), and copper (Cu) decreased. The blade N optimum range was lower than previously published sufficiency ranges during the fruit harvest period, and the Zn optimum range was lower throughout the season. Other nutrients were in general agreement with previously established sufficiency ranges with the exception of Ca, Mn, and Fe, which were higher. Petiole nitrate-nitrogen (NO3-N) was highly variable among high-yield fields, was not correlated with soil NO3-N at any growth stage, and was therefore of limited value as an indicator of crop N status. Comparison of soil nutrient availability with grower fertilization practices suggested that significant improvement in fertilizer management was possible.

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“…Studies in other strawberry production regions have indicated that no more than a seasonal total of 155 kg · ha -1 N was necessary to maximize fruit yield in annual production systems (Albregts et al, 1991a;Hochmuth et al, 1996;Kirschbaum et al, 2006;Locascio and Martin, 1985;Miner et al, 1997;Santos and Chandler, 2009). Splitting N application between preplant fertilization and in-season fertigation has been shown to be beneficial.…”

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Crop and Soil Nitrogen Dynamics in Annual Strawberry Production in California

Bottoms

Hartz²,

Cahn³

et al. 2013

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The impact of strawberry production on nitrate contamination of groundwater is of major concern in the central coast region of California. Nitrogen (N) fertilization and irrigation management practices were monitored in a total of 26 fall-planted annual strawberry (Fragaria ×ananassa Duch.) fields in 2010 and 2011. Soil mineral N (SMN, top 30 cm depth) was determined monthly. Irrigation applied was monitored, and crop evapotranspiration (ETc) was estimated. Growers were surveyed regarding their N fertilization practices. Aboveground biomass N accumulation was estimated by monthly plant sampling in seven fields. The effect of preplant controlled-release fertilizer (CRF) rate on fruit yield was investigated in three fields. The growers’ CRF application rate (121 or 86 kg·ha−1 N as 18N–3.5P–10.8K, 7- to 9-month release rating) was compared with a half rate (all fields) and no CRF in one field. The rate of N release from this CRF product was evaluated using a buried bag technique. Median CRF N and total seasonal N application (CRF + in-season fertigation through drip irrigation) were 101 and 260 kg·ha−1, respectively, with total seasonal N application varying among fields from 141 to 485 kg·ha−1. Biomass N accumulation was slow through March (less than 25 kg·ha−1) and then increased by ≈1.1 kg·ha−1·d−1 from April through mid-September. Mean seasonal biomass N accumulation was estimated at 225 kg·ha−1 by 15 Sept. Approximately 70% of CRF N was released before 1 Apr. Biomass N accumulation between planting and April was much lower than the combined amount of CRF N release and SMN decline over that period, suggesting substantial winter N loss. Conversely, N loss during the summer harvest season (May through August) appeared limited in most fields. Median SMN was maintained below 10 mg·kg−1, and median irrigation was 113% of estimated ETc during this period. Reduction in CRF rate did not affect marketable fruit yield in two of three trials; an 8% yield reduction was observed in the remaining trial when the CRF rate was reduced, but the decline may have been affected by spring irrigation and fertigation practices.

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Nitrogen Requirements of Drip Irrigated Strawberries Grown in Subtropical Environments

Cited by 7 publications

References 0 publications

Produção de morangos a partir de fertilizantes alternativos em pré-plantio

Produção de morangos a partir de fertilizantes alternativos em pré-plantio

Determination of Strawberry Nutrient Optimum Ranges through Diagnosis and Recommendation Integrated System Analysis

Crop and Soil Nitrogen Dynamics in Annual Strawberry Production in California

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