In the existing cropping systems exhaustive crops, like hybrid maize, require more nutrient inputs due to excessive removal of nutrients. Integrated use of organic and inorganic manures may not only satiate the need of such crops but this may also be an economical and environment friendly nutrient source. A field study was conducted during 2008 and 2009 following RCBD with three replications at Agronomic Research Area, University of Agriculture, Faisalabad. Effects of phosphorus (P) and potassium (K) application from separate and integrated organic and inorganic sources on the maize (Zea mays L.) were evaluated. In the first study poultry manure and press mud as organic amendments; and single superphosphate (SSP) as chemical amendment of P were evaluated in different combinations. In the second study composted wheat and rice straws were integrated with the sulphate of potash (SOP) to be used as the K source. Agronomic, physiological and quality parameters were recorded to establish variations in yield associated with integrated use of organo-chemical P and K fertilizers. In both years the mean grain yield was increased up to 7.48 t ha -1 and 7.2 t ha -1 with the integration of organic and inorganic (25% poultry manure + 75% SSP and 25% composted rice straw + 75% SOP) amendments for integrated P and K management, respectively. The relationship between grain yield and yield components, in both the studies, was highly significant (P<0.05) and positive. In the first study the 5 th treatment (25% poultry manure + 75% SSP) out yielded rest of the treatments due to greater total dry matter production that was resulted from more leaf area duration and higher crop growth rate. Regarding application of K from the integrated sources, treatment containing 25% composted rice straw + 75% SOP gave maximum total dry matter (1928.2 g m -2 ), higher cumulative leaf area duration (218.5 days) and mean crop growth rate (29.01 g m -2 day -1 ). In both studies, there was linear and positive correlation between grain yield and cumulative leaf area duration. Application of 75% SSP with 25% poultry manure and 75% SOP with 25% composted rice straw in both studies showed maximum uptake of P and K, respectively. In both years, the treatment combination of first study, 25% poultry manure + 75% SSP, earned highest net income viz, Rs.84410/- ha -1 and Rs.100695/- ha -1 . Regarding the second study, the integrated use of 25% composted rice straw + 75% SOP earned maximum net income of Rs.77907/- ha -1 and Rs. 84920/- ha -1 , respectively. Results suggested that integration of organic amendments of P and K with inorganic source was significantly better over the separate application of inorganic source.
The determinants of child marriage are triggered by complex social, economic, cultural, political and legal disparities. This research method used a cross sectional study. The research sample was 192 women who were married in 2018-2019 in the Campalagian District. This study aims to determine the effect of the age of marriage on the health of ibn and infants in the District of Campalagian. Chi-square test was used to analyze data. The results of the bivariate analysis showed that the age of marriage had an effect on the health of the newborn (p value = 0.003). However, the age of marriage on maternal health during pregnancy, maternal health at delivery, use of contraceptive methods, service standards for birth weight, and support from husbands do not have a significant effect. After conducting bivariate analysis using moderator variables, the results showed that. There is an effect of the age of marriage based on the age of the husband (p value = 0.017) and the husband's education (p value = 0.024) on maternal health at delivery. There is an effect of the age at marriage based on the husband's age (p value = 0.023), the wife's education (p = 0.008), and the husband's education (p = 0.009), on the health of the newborn. It can be concluded that the age of marriage has an effect on the health of the mother and baby and/or if it includes the age and education factors of both the respondent and the partner.
Model free control methodologies are popular in industry due to their easy implemen- tation. Minor tuning of controller gains yields satisfactory performance from a dy- namical system. The main drawback of the techniques is their lack of robustness. On the other hand, robust control techniques e.g. sliding mode control require mathemati- cal model of the system and their aggressive control effort is the main barrier in their implementation for mechanical systems. The proposed robust smooth control tech- niques with robust state-disturbance observer in the closed loop are the solution to the problem. The proposed state-disturbance observer is model free and relies on input and output of the system only; consequently it estimates states as well as drift term of the system. The estimated drift term is used to cancel out internal and external distur- bances of the system and this cancellation transforms the system into an nth order in- tegrator system. The observed states are used to design any modern or classical state- space control technique e.g. pole placement, Linear Quadratic Regulator (LQR) or Linear Matrix Inequality (LMI) methods etc. The finite time stability analysis of ro- bust state-disturbance observer is given in noisy and noise free environments. In this thesis, two novel control methodologies i.e. robust smooth real twisting second order sliding mode and robust feedback linearization are also proposed. The finite time sta- bility analysis of the robust smooth real twisting control is proven using Lyapunov method along with homogeneity concepts. The stability analyses of overall closed loop systems are given using separation principle. Simulations as well as experimental results with academic bench mark DC motor validate the ideas. The proposed tech- niques are also compared with robust LMI based polytopic controller on an industrial stabilized platform to verify their usage for industry.