Leaching of Nutrients From Containers With Nursery Plants

Boon, J. van der; Niers, H.

doi:10.17660/actahortic.1984.150.24

Cited by 3 publications

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“…The annual amounts of leached N and P, 19 to 41 and 11 to 56 kg ha −1 , respectively, were small compared with those measured in studies of horticultural crops (van der Boon and Niers, 1983; Broschat, 1995). Comparison with horticultural studies was difficult, however, because the amounts of nutrients leached have often been given per pot instead of per unit area, and the fertilizer system and methods used were different from those used in forest nurseries.…”

Section: Discussionmentioning

confidence: 57%

“…In 1995, for example, a heavy rainfall (10 mm) that occurred soon after one fertigation leached about one‐third of the total N leached from the pine and second‐season spruce container trays during the whole collection period. The experiences of van der Boon and Niers (1983) in an ornamental nursery were similar. In growing of first‐season spruce, almost all leaching of N and P occurred in connection with fertigations.…”

Section: Discussionmentioning

confidence: 89%

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Leaching of Nitrogen and Phosphorus during Production of Forest Seedlings in Containers

2002

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Little information is available concerning the contamination risk caused by forest seedling nurseries to local surface and ground waters compared with agricultural and horticultural production. Leaching of nitrogen (N) and phosphorus (P) through peat growing medium in containers and nutrient uptake of seedlings were monitored in production of silver birch (Betula pendula Roth), Norway spruce [Picea abies (L.) Karst], and Scots pine (Pinus sylvestris L.) seedlings. About half of the applied nutrients (total amount applied = 149 to 260 kg N ha(-1) and 60 to 108 kg P ha(-1)) was premixed into the peat medium, as is usual in Finnish nursery practice, and the other half was applied to seedlings in liquid form with mobile booms. Depending on tree species, 11 to 19% of the applied N was recovered in leachates and 15 to 63% in seedlings. The undiscovered proportion varied from 19 to 71%. The amounts of leached N were 19 to 41 kg ha(-1). Only 5 to 31% of the applied P was recovered in seedlings; 16 to 64% (11 to 56 kg ha(-1)) was found in leachates. Total N and P load to the environment may increase substantially if nutrients applied in liquid fertilization outside container trays are included. Consequently, it is important to determine the sources of nutrient load in container seedling production to mitigate the risk of environment contamination.

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Section: Discussionmentioning

confidence: 57%

Section: Discussionmentioning

confidence: 89%

Leaching of Nitrogen and Phosphorus during Production of Forest Seedlings in Containers

2002

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“…Container spacing, shedding of water by the plant canopy, and evaporation of water retained on the plant canopy are the main factors associated with low effi ciencies in overhead irrigation systems (Beeson and Knox, 1991). Regardless of form, applying excess N to container production systems promotes N leaching (Cabrera et al, 1993;Hershey and Paul, 1982;van der Boon andNiers, 1983, Yeager et al, 1993) and may depress plant growth (Barnett and Ormrod, 1985;Cabrera, 2003;Cabrera and Devereaux, 1998). In contrast, supplying insuffi cient N reduces plant size and quality (Marschner, 1995;Mengel and Kirkby, 1987).…”

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Fertilization of Two Container-grown Woody Ornamentals Based on Their Specific Nitrogen Accumulation Patterns

Sandrock¹,

Azarenko²,

Righetti³

2005

HortSci

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Nitrogen accumulation patterns were established for Weigela florida (Bunge.) A. DC. `Red Prince' (fast growth rate) and Euonymus alatus (Thunb.) Sieb. `Compactus' (slow growth rate). From these, daily and biweekly N delivery schedules were designed to match N supply with N accumulation patterns of each taxon. Delivery schedules were sliding scales in that total N applied was controlled by independent increases (or decreases) of N concentration and solution volume. Daily and biweekly N delivery schedules were tested against a constant N rate (200 mg·L-1) and Osmocote 18N-2.6P-9.9K (The Scotts Co., Marysville, Ohio). Plants were grown in 3.8-L containers in 7 douglas fir bark: 2 sphagnum peatmoss: 1 silica sand (0.65 mm; by volume) outdoors in full sun on a gravel pad for 142 d. Within each taxon, Weigela and Euonymus grown with sliding-scale N fertilization schedules had similar total dry weights, leaf areas, and total plant N contents to plants grown with a constant N rate (200 mg·L-1) or Osmocote 18N-2.6P-9.9K. Sliding-scale liquid fertilization based on plant N requirements introduced less total N to the production cycle and resulted in higher N uptake efficiency than fertilization with a constant N rate of 200 mg·L-1. In general, liquid N fertilizer treatments resulted in plants with higher shoot to root ratios than plants treated with Osmocote 18N-2.6P-9.9K. Weigela and Euonymus treated with biweekly schedules were similar to plants treated with daily schedules (same total amount of N delivered with each treatment).

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Juntunen¹,

Rikala²

2001

New Forests

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Leaching of Nutrients From Containers With Nursery Plants

Cited by 3 publications

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Leaching of Nitrogen and Phosphorus during Production of Forest Seedlings in Containers

Leaching of Nitrogen and Phosphorus during Production of Forest Seedlings in Containers

Fertilization of Two Container-grown Woody Ornamentals Based on Their Specific Nitrogen Accumulation Patterns

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