Bøger af Tahany Noreldin

Two field experiments were conducted in sandy soil during 2002/03 growing seasons to study the response of maize plants to bio-organic, N and P, K fertilization. Two different kinds of compost, maize and wheat compost were used at the rate of 5 ton/fed. The experiment design was split-split plot with 4 replications. Compost treatments (0 and 5 ton/fed) of maize and wheat compost were assigned in the main plots whereas N-fertilizer rates (0, 45, 90 and 135 N/fed) and PK rates (0, 31 kg P¿O¿ + 48 kg K¿O/fed) were randomly distributed in sub and sub-sub plots, respectively. Vegetative and yield characters were measured during plant growth and at harvest. Results showed that applying compost at 5 ton/fed improved plant growth and ear height and induced earlier tasseling and silking. It also, led to a significant increase in yield/fed. Increasing N rate up to 135 kg N/fed markedly increased both plant and ear height, ear length, ear diameter, number of rows/ear, grain yield/fed. It also induced early flowering two growing seasons. The same trend applying phosphorus and potassium level.

This book tackles the issue of using crop rotation to increase food production and secure it for the growing population of the future.