Search Results

You are looking at 61 - 70 of 4,355 items for :

  • Refine by Access: All x
Clear All
Full access

Taun Beddes and Heidi A. Kratsch

capacity to thrive in N-deficient soils. Furthermore, the presence of nodules on nursery plants could allow for reduction in N-fertilizer use and more efficient use of applied N. Sellstedt and Huss-Danell (1986) found that nodulated gray alder ( Alnus

Free access

Jong-Goo Kang and Marc W. van Iersel

Salt stress, caused by high levels of fertilizer salts in the growing medium, can greatly inhibit the growth of bedding plants. Salt accumulation in the root zone can affect plants because of osmotic stress, ionic imbalances, or specific nutrient

Free access

Owusu A. Bandele, Marion Javius, Byron Belvitt, and Oscar Udoh

29 ORAL SESSION 2 (Abstr. 013–019) Vegetable Crops: Fertilizer Management

Free access

Guihong Bi, William B. Evans, James M. Spiers, and Anthony L. Witcher

Standard fertilization practices for greenhouse and nursery crops include the use of controlled-release fertilizer, periodic application of water-soluble fertilizer during production, or both. Recent movements toward naturally managed gardens and

Open access

Natalie Yoder and Jessica G. Davis

Nitrogen (N), a limiting nutrient in all agricultural systems, can be difficult to manage in certified organic vegetable production. Organic agriculture relies heavily on fertilizers and soil amendments from off-farm sources such as fish emulsion

Open access

Hardeep Singh, Bruce Dunn, Mark Payton, and Lynn Brandenberger

defined it as a practice of growing plants in a shallow film of nutrient solution flowing near bare roots in a water-tight channel ( Resh, 1995 ). Selection of a suitable fertilizer is one of the main challenges when growing with NFT. The fertilizer used

Free access

Philip J. White, John E. Bradshaw, M. Finlay, B. Dale, Gavin Ramsay, John P. Hammond, and Martin R. Broadley

crops through application of mineral fertilizers, combined with breeding varieties with an increased ability to acquire mineral elements, is advocated as an immediate agronomic strategy both to increase mineral concentrations in edible produce and to

Full access

Joseph G. Masabni and S. Alan Walters

gardening principles to create a horticultural system based on real world effectiveness and environmental responsibility. Earth-Kind ® encourages water and energy conservation, and reductions in fertilizer and pesticide use, as well as reductions in the

Full access

Thomas A. Obreza and Jerry B. Sartain

Florida's citrus, vegetable, ornamental, and turf growers walk a fine line as they attempt to maintain economical production while simultaneously protecting the surrounding environment from excessive nutrients. In the face of increased fertilizer

Full access

E.A. Guertal, B.K. Behe, and J.M. Kemble

The use of composted waste materials as an alternative source of potting media has received much interest in recent years. Our objective was to incorporate composted, ground poultry litter into a standard greenhouse potting mix, and evaluate the effect of the poultry litter on vegetable transplants grown in the greenhouse and transplanted to the field. Treatments consisted of potting mixes of 100% potting media or 50/50 media/poultry litter. Collards (Brassica oleracea L. var. acephala DC.), broccoli (Brassica oleracea var. italica Plenck.), cabbage (Brassica oleracea L. var. capitata L.) and three tomato (Lycopersicon esculentum Mill.) cultivars were utilized as test crops. A nutrient solution treatment of 8 oz of 8N-11P-7K fertilizer or 8 oz of water was added when transplants were set in the field. Plant weight and nitrogen content were measured weekly during the greenhouse production stage, and final crop yield was recorded at harvest. Any effect from the inclusion of poultry litter in the potting media on cole crop (collards, broccoli, cabbage) transplant dry weight had disappeared by the fourth week of sampling in the greenhouse, and final yield of cole crops was unaffected by either type of potting mix or presence or absence of starter nutrient solution. Dry weight of tomato transplants was not affected by type of potting media. Differences in tomato yield due to type of potting mix were observed, as plots with transplants grown in the 50/50 mix had greater nonmarketable yields (`Bonnie' and `Big Boy'). Yield of `Big Boy' tomato was increased by the addition of starter nutrient solution. It appears that composted, uniformly prepared waste materials are suitable for production of vegetable transplants.