Functional changes after segmental and lobar resections of the lungs at remote periods of observation

Clinico-roentgenological and functional studies were carried out in 78 patients 2--12 years following segmental (42 patients) and lobar (3) pneumonectomies for tuberculosis. An analysis of the data obtained indicated that partial pneumonectomies within the boundaries of 1-5 segments per se fail to produce significant disorders in the ventilatory and gas metabolism function of the lung. 2-12 years after the operation the patients show considerable ventilatory reserves. Significant respiratory disorders are observed only in patients with postoperative complications and pathological changes in the lung, pleura and bronchi conditioned by tuberculosis and non-specific lung pathology.     

Response of two okra (Abelmoschus esculentus L. Moench) varieties to fertilizers: Growth and nutrient concentration as influenced by nitrogen and phosphorus application

The growth response and nutrient concentration in okra (Abelmoschus esculentus L. Moench) as influenced by four nitrogen rates (0, 25, 50 and 100 kg ha^–1) and three phosphorus rates (0, 13 and 26 kg ha^–1) were examined using two varieties (White velvet and NHAE 47-4). Nitrogen application generally increased fruit and shoot dry weights markedly whereas phosphorus increased them only moderately. Leaf and primary branch production and plant height were also enhanced by nitrogen fertilization up to 100 kg N ha^–1 but were not influenced by phosphorus application. The application of nitrogen enhanced the concentration of N, P and K in fruits and N and Mg in leaves while P and K concentrations in leaves were depressed. Nutrient concentrations in plant tissues were also partly a function of plant age and variety.