Nutrient density of fruit crops as a function of soil fertility

Barker, Allen V.; Stratton, Margie Lynn

doi:10.1016/b978-0-12-818732-6.00002-2

Cited by 11 publications

(9 citation statements)

References 134 publications

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“…Spinach is one of the healthiest vegetables for the human diet due to its high concentration of nutrients and health-promoting compounds [7]. Among vegetable crops, it has one of the highest aggregate nutrient density index values [8,9].…”

Section: Introductionmentioning

confidence: 99%

Coir, an Alternative to Peat—Effects on Plant Growth, Phytochemical Accumulation, and Antioxidant Power of Spinach

et al. 2021

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The effects of four commercial substrates, a peat-based substrate, and three coir types (coir pith, coir chips, and coir pith + fibers) on yield, phytochemical accumulation, and antioxidant activity were evaluated in Spinacia oleracea L. cv. ‘Manatee’. Soil-blocked spinach seedlings were transplanted into Styrofoam planting boxes filled with the substrate. Each planting box was irrigated daily by drip with a complete nutrient solution, and the irrigation scheduling was optimized to the peat. Leaf area and fresh yield in coir pith and coir pith + fiber were similar to those obtained in peat. However, shoot dry weight accumulation and leaf chlorophyll were lower in plants grown in coir. Substrate type did not affect leaf carotenoids. Total flavonoid content was higher in plants grown in the different types of coir. Total phenols and antioxidant activity (DPPH) were higher in plants grown in coir pith. This indicates that the different coir types, mainly coir pith, may provide an alternative to peat since they allowed a high fresh yield to be reached and the total flavonoids to be increased. In contrast, the levels of other phytochemicals and antioxidant activity were usual for spinach. However, further research is necessary to analyze the effects of irrigation scheduling and the nutrient solution adjusted to each growing medium on yield and phytochemical accumulation.

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Section: Introductionmentioning

confidence: 99%

Coir, an Alternative to Peat—Effects on Plant Growth, Phytochemical Accumulation, and Antioxidant Power of Spinach

et al. 2021

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“…The presence of nutrients inside the soil is evident in both locations, this condition is essential for the fruit to have a high concentration of nutrients, and thus, increase the benefits for human consumption [35]. In Cutzato as well as in Tiamba the consumption of fertilizers was slow at the end and at the beginning of the year (Figures 3 and 4), however, early nutrition at this season results in a greater number of fruits [16]; later a higher absorption rate is observed from the end of January to mid-May, this may be due to the exponential growth of the fruit and the high demand from winter vegetative shoots, which do not produce photosynthates and are rather a sink of nutrients [36].…”

Section: Discussionmentioning

confidence: 99%

Dynamics of moisture and nutrients in the root zone, actual evapotranspiration (ETr), and irrigation efficiency in avocado trees of highland and midland orchards of Michoacán, México.

Tapia-Vargas,

Hernández-Pérez,

Álvarez-Hernández

et al. 2024

Preprint

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The objective of this research was to study the dynamics of moisture and nutrition at the root zone and to quantify the variables linked to efficient water management in avocado orchards of mid and high-lands of Michoacán, México, in typical Andisols of low fertility with (A)C(w2) and C(w2) climates, respectively. Using the FDR (Frequency Domain Reflectometry) technology, the dynamics of soil moisture and salinity were recorded daily at four depths: 0-15, 15-30, 30-45, and 45-60 cm. The soil moisture balance model was used to determine actual evapotranspiration (ETr), crop coefficient (Kc), and water use efficiency (WUE). Results indicated that ETr is 66-73% of the total water at 0-30 cm depth; the fertilizer absorption is limited to 0-30 cm, being negligible at deeper layers. The water use efficiency is 4.4 to 5.6 kg of fruit m-3 of applied water, and the ratio of the water use index (ETr/irrigation sheet applied, ISA) is 0.65-0.70; while the annual avocado Kc is 0.72 in Cutzato and 0.78 in Tiamba. We concluded that avocado has a low water requirement, it does not cause leaching of nutrients and/or water, the absorption of water and nutrients mostly occurs at 30 cm depth, and from a hydrological point of view, the crop is environmentally friendly.

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“…The chemical characteristics, size, and number of seeds vary according to the producing parent plant and its location [5,38]. The absorption of nutrients and their transport to fruits and seeds leads to foods rich in mineral compounds with potential benefits for humans [39]. Nutrient levels vary during the reproductive period.…”

Section: Discussionmentioning

confidence: 99%

Functional Fruit Trees from the Atlantic and Amazon Forests: Selection of Potential Chestnut Trees Rich in Antioxidants, Nutrients, and Fatty Acids

Palacio de Araujo,

Medeiros Simões,

Lins Monteiro Rosa

et al. 2023

Foods

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The Amazon rainforest and the biodiversity hotspot of the Atlantic Forest are home to fruit trees that produce functional foods, which are still underutilized. The present study aimed to select potential functional nut donor trees from two Brazilian chestnuts, by evaluating the nutritional and antioxidant composition of the nuts and the fatty acid profile of the oil. The nutritional characteristics, antioxidants, oil fatty acid profile, and X-ray densitometry of the nuts were evaluated, as well as the characterization of leaf and soil nutrients for each parent tree. The nut oil was evaluated through Brix (%), mass (g), yield (%), and the fatty acid profile. For L. pisonis, the most nutritious nuts were produced by L. pisonis tree 4 (N > P > K > Mg > Ca > Zn > Fe) and L. pisonis tree 6 (P > Ca > Mg > Mn > Zn > Cu > Fe), and for the species L. lanceolata, L. lanceolata tree 6 (N > P > Ca > Mg > Zn > Fe > Cu) and L. lanceolata tree 2 (P > K > Mg > Zn > Cu). In L. pisonis, the highest production of anthocyanins, DPPH, total phenolics, and flavonoids was obtained from the nuts of L. pisonis tree 4 as well as for L. lanceolata, from L. lanceolata tree 1, except for flavonoids. The Brix of the oil from the nuts of both species showed no difference between the trees and the fatty acid profile with a similar amount between saturated (48–65%) and unsaturated (34–57%) fatty acids. Both species have nuts rich in nutrients and antioxidant compounds and can be considered unconventional functional foods. The data collected in the present study confirm that the nuts of these species can replace other foods as a source of selenium.

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Nutrient density of fruit crops as a function of soil fertility

Cited by 11 publications

References 134 publications

Coir, an Alternative to Peat—Effects on Plant Growth, Phytochemical Accumulation, and Antioxidant Power of Spinach

Coir, an Alternative to Peat—Effects on Plant Growth, Phytochemical Accumulation, and Antioxidant Power of Spinach

Dynamics of moisture and nutrients in the root zone, actual evapotranspiration (ETr), and irrigation efficiency in avocado trees of highland and midland orchards of Michoacán, México.

Functional Fruit Trees from the Atlantic and Amazon Forests: Selection of Potential Chestnut Trees Rich in Antioxidants, Nutrients, and Fatty Acids

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