A Study on Goodness of Fit For The Linear Model of Index Numbers of Jute Productivity In India

A linear trend is fitted to the index numbers of Jute productivity in India from 1993-94 to 2011-12. The line is tested for its goodness of fit by studying standard error, closeness of fit, confidence region, and some sampling distribution techniques such as chi-square test, t-test, z-test. As a result, it is concluded that there is no significant difference between the observed and estimated index numbers of Jute productivity in India from 1993-94 to 2011-12 and hence the regression line is a good fit

A STUDY ON STUDENTS’ ATTITUDE TOWARDS MATHEMATICS IN SOME SELECTED SECONDARY SCHOOLS OF PUDUCHERRY STATE

This case study adopted the illustrative customer survey pattern applying easy frequency and also percentages inside considering the data. 573 secondary school students at random selected through 8 educational institutions in various parts of Puducherry state of India ended up applied. Just One Instrument (JOI) has been applied. It is recommended how the educator needs to develop optimistic relationship with college students and also stress type place routines which involve active teaching- learning method and also students’ contribution in the class. Stakeholders need to organize periodic classes and also courses regarding students, parents and also instructors made to promote optimistic thought patterns towards mathematics

Pools of organic carbon in soils under a long-term rice–rice system with different organic amendments in hot, sub-humid India

Study of soil organic carbon pools is helpful to understand the mechanism of carbon sequestration in soil. It was hypothesized that different management practices and sources of organics applied to soil will change the carbon allocation into various pools. The changes in total organic carbon (TOC) and its pools of different oxidizabilities (very labile, labile, less labile and non-labile pools) were investigated along with other fractions – microbial biomass carbon, particulate organic carbon, active carbon and oxidizable organic carbon – in soils under a 24-year-old double rice (Oryza sativa L.) cropping system with different management strategies in a hot, sub-humid region of India. Cultivation over the years caused a net buildup of TOC under different treatments. About 27.3, 48.2 and 54.1% of the C applied through green manure (GM), farmyard manure (FYM) and GM + FYM, respectively, was stabilized in the soils. Application of GM and FYM increased C in very labile and less labile pools, respectively. Of the analyzed pools, permanganate oxidizable and microbial biomass C were more sensitive to management practices and hence are considered important indicators of soil quality, and balanced fertilization with GM + FYM is considered suitable management for sustaining soil health under the double rice system