Nutrient management in fruit crops: An organic way

Toselli, Moreno; Baldi, Elena; Cavani, Luciano; Sorrenti, Giovambattista

doi:10.1016/b978-0-12-818732-6.00027-7

Cited by 10 publications

(8 citation statements)

References 77 publications

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“…As a result, the mineral-N:NO 3 − -N ratio is almost steady, and only water soluble NO 3 − -N is commonly detected for fertilization management [17]. During the growing season, the optimal NO 3 − -N concentration ranges between 5-20 mg kg −1 [18,19]. The improper use of N fertilizers, besides contamination of ground water, can have negative impacts on plants and lead to excess vegetative growth [20], increase susceptibility to diseases and physiological disorders [21], and decrease the quality and shelf-life of fruits [22].…”

Section: Discussionmentioning

confidence: 99%

Use of In Situ Soil Solution Electric Conductivity to Evaluate Mineral N in Commercial Orchards: Preliminary Results

et al. 2020

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The aim of the present experiment was to evaluate the effectiveness of soil electrical conductivity (EC) measurement as a fast tool to assess mineral nitrogen (N) in orchards, in order to define precise N inputs that can help farmers to reduce useless fertilizer application. During one vegetative season, seven orchards of different species, supplied with mineral or organic fertilization, were monitored. Nitrate soil concentration was measured monthly by laboratory analyses, while soil EC and moisture were recorded continuously by soil probes. Nitrate and EC were positively correlated, laying the foundation for the identification of a fast and reliable index. However, while some dates showed a high Pearson correlation coefficient, no correlation was found for others. The correlation was not affected by type of fertilizer, and was higher in silty-clay-loam than in loam soils. Pooling all of the data, a significant correlation with a Pearson coefficient of 0.75 was found. The soil optimal nitrate N availability was defined by an EC in the range of 0.3 to 0.6 mS cm−1. Although these are only preliminary results, our data are promising, showing a good suitability of soil EC measurement as a means to monitor soil mineral N availability.

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Section: Discussionmentioning

confidence: 99%

Use of In Situ Soil Solution Electric Conductivity to Evaluate Mineral N in Commercial Orchards: Preliminary Results

et al. 2020

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“…Potassium is an essential nutrient element for plants and has an impact on growth and development. In soil, magnesium exists as a cation and competes with other ions such as K + , Ca 2+ , Mn 2+ , and NH 4+ root uptake [42], so if the uptake of magnesium exceeds that of potassium, plant growth may be hindered. Zhang et al (2018) reported that the temperatures (average, minimum, and maximum) from April to October affect the most positively on the quality of the Fuji apple, followed by annual average temperature and sunlight, daily temperature difference, and total precipitation [32].…”

Section: Discussionmentioning

confidence: 99%

Multivariate Analysis among Marker Compounds, Environmental Factors, and Fruit Quality of Schisandra chinensis at Different Locations in South Korea

Lee,

Kim,

Son

et al. 2023

Plants

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This study aimed to investigate the correlation among the contents of marker compounds, growth characteristics, and environmental factors of Schisandra chinensis fruits across South Korea. The fruits were collected from 36 cultivation sites in 28 regions across the country. We investigated nine growth characteristics, twelve soil physicochemical properties, eight meteorological data, and three marker compounds in this study. We optimized and validated an optimized method for quantifying marker compounds using UPLC and performed correlation analysis among the contents of marker compounds, growth characteristics, and environmental factors. The UPLC-UV method for analyzing marker compounds was validated by measuring linearity, LOD, LOQ, precision, and accuracy. The marker compounds were negatively correlated with the fruit size and sugar contents, and growth characteristics were negatively correlated with some physicochemical properties of the soil. The results of this study can be used as basic data for the standard cultural practices and quality control of S. chinensis fruits.

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“…Previous studies demonstrated that balanced fertilization with the 4R Nutrient steward concept as the core was considered to cut the cost and increase fruit yield and quality (Srivastava and Malhotra 2014). Moreover, organic cultivation including organic manures and biofertilizers of citrus could bring a positive effect on fruit quality production (Canali et al 2012;Toselli et al 2020). The FR treatment decreased 25% of total NPK nutrition which seemed to improve nutrient use e ciency and fruit quality.…”

Section: Discussionmentioning

confidence: 99%

Grass and Plastic Film Mulching Pattern Improve Soil Organic Carbon Pool, Physical Properties, Fertility and Fruit Quality of Ponkan Orchards

Dong¹,

Xue²,

Chen³

et al. 2021

Preprint

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Aims: Special fertilizer and soil mulching have been used to improve crop yield worldwide. However, the effects of special fertilizer with mulching on soil characteristics of citrus orchards were not yet fully understood. This study aimed at assessing the effects of different mulch patterns including plastic mulching and grass mulching on improving fruit quality of Ponkan and providing a new insight of mulching development in citrus orchards.Methods: In this study, a two-year field experiment was conducted to investigate the effects of citrus special fertilizer (FR), grass mulching (RGM), and plastic mulching (RPM) on fruit quality, soil organic carbon fractions, physicochemical properties, and plant nutrition in Ponkan citrus orchard.Results: The study resulted showed that special fertilizer treatment and grass mulching treatment increased Total soluble solid contents by 6.76% and 3.97%, while plastic mulching decreased Titratable acid contents by 19.44%, resulting in increases of fruit TSS: TA by 6.14%, 3.61%, and 22.76%, respectively. Correlation analyses showed that citrus fruit quality was associated with soil bulk density, Total porosity, Capillary porosit, Aeration porosity, Total organic carbon, Readily oxidized organic carbon, Microbial biomass carbon and Soil available phosphorus. Soil physical properties were improved by RPM, but FR and RGM had better effects on soil nutrients and organic carbon, as evidenced by the results of principal component analysis and loading matrix plot. Conclusions: This study suggested that the different effects of special fertilizer, plastic mulching, and grass mulching on improving fruit quality were associated with their diverse effects on improving soil characteristics.

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Nutrient management in fruit crops: An organic way

Cited by 10 publications

References 77 publications

Use of In Situ Soil Solution Electric Conductivity to Evaluate Mineral N in Commercial Orchards: Preliminary Results

Use of In Situ Soil Solution Electric Conductivity to Evaluate Mineral N in Commercial Orchards: Preliminary Results

Multivariate Analysis among Marker Compounds, Environmental Factors, and Fruit Quality of Schisandra chinensis at Different Locations in South Korea

Grass and Plastic Film Mulching Pattern Improve Soil Organic Carbon Pool, Physical Properties, Fertility and Fruit Quality of Ponkan Orchards

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