STUDIES ON USING SOME LOCAL MEDIA FOR TWO SUCCESSIVE YEARS WITHOUT STERILIZATION ON PLANT GROWTH, YIELD AND NUTRIENT UPTAKE OF CUCUMBER GROWN UNDER UNHEATED GREENHOUSES IN EGYPT

In two years trails at Kaha Research Station, Vegetable Research Unit during two successive winter plantations of 1989–1990, and 1990–1991 on cucumber cv.
Katia grown on some local substrates (Faba strow or rice straw) covered with a thick layer (10cm) of clay or sand placed in 50cm. deep trenches in greenhouse soil two months before transplanting to investigate their effect on plant growth, yield and nutrient uptake.
The results could be summarized as follows:

Early yield, total yield (as number of fruits) and nutrient uptake in fruits slightly differed when plants grown on the same media in two successive seasons.
Concerning plant growth and nutrient uptake in vegetative parts, no significant differences were obtained.
All the substrates under investigation led to an increment in organic matter content till end of the season comparing with clay or sand only.
Rice straw covered with sand gave the highest yield, fresh and dry weight and total N,P,K accumulation in vegetative parts and fruits.
Total dry matter content and total N,P,K accumulation in vegetative parts increased with progress of plant age till 120 days from planting and then declined.

Symposium on Soil and Soilless Media under Protected Cultivation in Mild Winter Climates

E.A. Abou-El-Hassan, A.H. Khereba, M.S. Youssef, M.H. Zaki, H. Khalifa

https://doi.org/10.17660/ActaHortic.1993.323.42