
Announcements
Vacancies
- Technical Sales Representative, Leamington, Ontario
- Technical Sales Representative, Ancaster, Ontario
- HR Generalist
- Head Grower Strawberries (West Virginia USA)
- Global Sourcing Manager
- Buying Operations Manager (BOM Process)
- Sourcing Manager EU
- Manager Operations Ethiopia
- Manager Operations Ethiopia
- Senior Grower
"Tweeting Growers"
Top 5 - yesterday
Top 5 - last week
Top 5 - last month
- Hasfarm’s network expands in Indonesia, partnering with Bromelia Flowers and Tropika
- "Breeders need to study the Chinese market carefully before introducing a variety"
- Royal Flowers merges with The Elite Group
- North America: “Unbridled optimism for Mother’s Day tempered by reality”
- “A new sales channel for flower companies without any labor or high fixed costs”
Growth response of herbaceous ornamentals to phosphorus fertilization
In experiment 1, petunia [Petunia atkinsiana (Sweet) D. Don ex W.H. Baxter] plants were grown using eight P concentrations, and researchers found that the upper bound for plant growth was at 8.72–9.08 mg·L−1 P, whereas concentrations ≤2.5 mg·L−1 P caused P deficiency symptoms.
Experiment 2 investigated P growth response in two cultivars each of New Guinea impatiens (Impatiens hawkeri W. Bull) and vinca [Catharanthus roseus (L.) G. Don]. Growth for these plants was maximized with 6.43–12.42 mg·L−1 P. In experiment 3, ornamental peppers (Capsicum annuum L. ‘Tango Red’) were given an initial concentration of P for 6 weeks and then switched to 0 mg·L−1 P to observe whether plants could be supplied with sufficient levels of P, and finished without P to keep them compact.
Plants switched to restricted P began developing P deficiency symptoms within 3 weeks; however, restricting P successfully limited plant growth. These experiments indicated that current P fertilization regimens exceed the P requirements of these bedding plants, and depending on species, concentrations of 5–15 mg·L−1 P maximize growth.
Access the full study at HortScience.
Publication date:
Receive the daily newsletter in your email for free | Click here
Other news in this sector:
- 2023-05-25 Fertilizer affordability starts to improve after two turbulent years
- 2023-05-16 FloraLife introduces new product to hydrate and condition post-harvest hydrangea crops
- 2023-05-03 Ensuring proper fertilizer concentration in greenhouse growing
- 2023-05-02 Yara results down because of declining market prices
- 2023-04-24 How to calculate fertilizer rates?
- 2023-04-20 Vase Life Study results of Roses, Alstroemeria, and Chrysanthemum using FloraLife Flower Food
- 2023-04-20 Plant vaccines delivered via microneedle could offer alternative to chemical spraying
- 2023-04-17 What unique benefits do plants get from biofungicide and mycorrhizae?
- 2023-04-07 Griffin adds Hortus USA products to US and Canada portfolio
- 2023-04-06 Two big announcements for Actinovate
- 2023-03-14 Fertilizer producer returns to profit after huge loss in 2021
- 2023-03-13 Should you tank mix your pesticides?
- 2023-02-17 "EU should be less dependent on imported fertilizers"
- 2023-02-06 High-tech test and innovation center for Dutch biostimulant producer
- 2023-01-11 Bee Vectoring Technologies and BioSafe Systems start selling CR-7 products into foliar and soil drench markets
- 2022-12-15 Effects of water balance on cut flower postharvest performance
- 2022-12-12 “It is one of the ‘star shows’ on the Indian sub-continent and across the wider East Asian area”
- 2022-11-30 Jewel orchid’s biological and physiological response to aquaponic water as potential fertilizer
- 2022-11-23 Vietnam: Agricultural sector aims to increase use of organic fertilizer
- 2022-11-16 "First shipment of Russian fertilizer marks breakthrough in global supply crunch"