Soil-plant nitrogen pools in nectarine orchard in response to long-term compost application

Toselli, Moreno; Baldi, Elena; Cavani, Luciano; Mazzon, Martina; Quartieri, Maurizio; Sorrenti, Giovambattista; Marzadori, Claudio

doi:10.1016/j.scitotenv.2019.03.241

Cited by 23 publications

(20 citation statements)

References 30 publications

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“…Thus, this fact could be associated with the lack of response given by organic fertilization in this study. In addition, the present data only refer to one year period, that, for fruit trees is quite short to get significant results as also previously observed in other experiment on peach (TOSELLI et al, 2019a).…”

Section: Resultssupporting

confidence: 67%

“…In traditional fruit tree cultivation, excessive use of mineral-based fertilizers in the long run may affect the ecosystem due to risks of leaching and/or emission of nitrogen (N) into the atmosphere. Therefore, sustainable alternatives, such as the use of organic fertilizers, should be employed to carry out nutrient management in plants TOSELLI, 2014;BALDI et al, 2016;TOSELLI et al, 2019a).…”

Section: Introductionmentioning

confidence: 99%

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Organic fertilization and crop load in yield and quality of organic nectarines in Italy

et al. 2021

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Organic fertilization in orchards aims at increasing soil fertility, at impacting plant productivity and environmental sustainability. This study aimed at verifying the effects of organic fertilization and fruit load on two nectarine cultivars with high and low fruit loads. The experiment was carried out in an orchard under organic management in Fratta Terme, Po valley, in northeastern Italy. Nectarine cultivars Big Top and Carene, implemented in 2017 and grafted onto GF677, were used. Three levels of compost (0, 20 and 40 t dw ha-1) were combined with two fruit loads (low and high) to set up a factorial experimental design with two factors and four randomized replicates. Compost was incorporated at 20 cm depth. The following parameters were evaluated: nitrate- and ammonium- N concentrations in soil at 20 - 40 cm depth, macro and micronutrients in leaves, tree yield, number of fruits, fruit mass and diameter, soluble solids and pulp firmness. The supply of compost enhanced nitrate-N release in soil. In both cultivars, macro- and micronutrient concentrations in leaves were not affected by organic fertilization or fruit load, except for iron, which increased as a consequence of the compost supply. Low crop load induced higher fruit size in both varieties, a fact that was observed after pit hardening. However, the organic fertilization rate did not influence tree yield, fruit mass and soluble solids.

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Section: Resultssupporting

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Organic fertilization and crop load in yield and quality of organic nectarines in Italy

et al. 2021

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“…With respect to stone fruits, a large number of fruits would have impact on the source-drain balance of nutrients and carbohydrates, a fact that led to competition between vegetative and reproductive plant parts, and to yield drop in the subsequent season [76,77]. Fruiting and fruit development decreased as flowers production also decreased [23,27]. Excessive fruit load in one crop can reduce vegetative growth and fruit set in the following cropping season [76].…”

Section: Fruit Yieldmentioning

confidence: 99%

“…Nitrogen (N) reserves can be stored in roots, stems and branches (older than 1 year) [19,23]. Stored N can be redistributed by phloem flow [27], and this phenomenon is commonly observed in temperate fruit trees [66,79]. Soil organic matter and its prior fertilization can also supply nitrogen through the mineralization of organic N, roots and leftover residues [27,82,83].…”

Section: Fruit Yieldmentioning

confidence: 99%

“…On the other hand, excessive N doses and high N levels in plant tissue result in vegetative overgrowth, increase in labor costs with green and winter pruning, decrease in fruit quality and increase in disease incidence [23,25,26]. Excessive N applications also lead to N loss due to leaching or runoff, which pose a risk for neighboring water contamination [27][28][29]. Site-specific conditions must be successfully combined to enable high crop yield and quality, as well as sustainable environment.…”

Section: Introductionmentioning

confidence: 99%

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Esmeralda Peach (Prunus persica) Fruit Yield and Quality Response to Nitrogen Fertilization

Nava

Júnior

Parent

et al. 2022

Plants

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‘Esmeralda’ is an orange fleshed peach cultivar primarily used for juice extraction and secondarily used for the fresh fruit market. Fruit yield and quality depend on several local environmental and managerial factors, mainly on nitrogen, which must be balanced with other nutrients. Similar to other perennial crops, peach trees show carryover effects of carbohydrates and nutrients and of nutrients stored in their tissues. The aims of the present study are (i) to identify the major sources of seasonal variability in fruit yield and qu Fruit Tree Department of Federal University of Pelotas (UFPEL), Pelotas 96010610ality; and (ii) to establish the N dose and the internal nutrient balance to reach high fruit yield and quality. The experiment was conducted from 2014 to 2017 in Southern Brazil and it followed five N treatments (0, 40, 80, 120 and 160 kg N ha−1 year−1). Foliar compositions were centered log-ratio (clr) transformed in order to account for multiple nutrient interactions and allow computing distances between compositions. Based on the feature ranking, chilling hours, degree-days and rainfall were the most influential features. Machine learning models k-nearest neighbors (KNN) and stochastic gradient decent (SGD) performed well on yield and quality indices, and reached accuracy from 0.75 to 1.00. In 2014, fruit production did not respond to added N, and it indicated the carryover effects of previously stored carbohydrates and nutrients. The plant had a quadratic response (p < 0.05) to N addition in 2015 and 2016, which reached maximum yield of 80 kg N ha−1. In 2017, harvest was a failure due to the chilling hours (198 h) and the relatively small number of fruits per tree. Fruit yield and antioxidant content increased abruptly when foliar clrCu was >−5.410. The higher foliar P linearly decreased total titratable acidity and increased pulp firmness when clrP > 0.556. Foliar N concentration range was narrow at high fruit yield and quality. The present results have emphasized the need of accounting for carryover effects, nutrient interactions and local factors in order to predict peach yield and nutrient dosage.

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Organic Fertilization of Fruit Trees as an Alternative to Mineral Fertilizers: Effect on Plant Growth, Yield and Fruit Quality

Baldi

Toselli

2021

Plant in Challenging Environments

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Soil-plant nitrogen pools in nectarine orchard in response to long-term compost application

Cited by 23 publications

References 30 publications

Organic fertilization and crop load in yield and quality of organic nectarines in Italy

Organic fertilization and crop load in yield and quality of organic nectarines in Italy

Esmeralda Peach (Prunus persica) Fruit Yield and Quality Response to Nitrogen Fertilization

Organic Fertilization of Fruit Trees as an Alternative to Mineral Fertilizers: Effect on Plant Growth, Yield and Fruit Quality

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