تو یہ نہ سمجھ تیری جوانی پہ مرے تھے
ہم یار تری صاف بیانی پہ مرے تھے
پھر قحط اتارا گیا اولاد پر اُن کی
وہ جن کے قبیلے کبھی پانی پہ مرے تھے
اُن کو ہی بہانے تھے پڑے اشک سبھی پھر
جو لوگ تری اشک فشانی پہ مرے تھے
سورج تھے طلب گار ضیا کے ترے رخ سے
دریا ترے لہجے کی روانی پہ مرے تھے
سن کر بھی غمِ ابنِ علیؑ لوگ تھے بے حس
کردار پہ قرباں، نہ کہانی پہ مرے تھے
This study aimed at analyzing qualitatively the implementation of K13 curriculum which has long been applied in the state senior high school number 3 of Rejang Lebong. The data were garnered using observations and interviews for the sake of eliciting information to answer the proposed problem. The other technique considered important was documentation to see the curriculum-based depictions and loads in the existing documents. After the data were gathered, the selection of data was undertaken in order to be displayed in findings; the data were analyzed and discussed; and they were concluded as the ultimate answer to the formulated problem. The present study drew a conclusion that the implementation of k13 curriculum ran well although some obstacles were faced such as learning facilities. The entire school’s community seemed to be committed to carry out the mandate of this national educational system’s law such as training for teachers’ competence, doing the duties of making lesson plans in the form of RPP and syllabi, providing a monthly report concerning the implementation of learning by teachers, and carrying out evaluations alongside giving guidance for teachers’ performances.
Isoproturon [3-(4-isopropylphenyl)-1,1-dimethylurea (IPU)], one of the phenylurea herbicides, is extensively used across the globe in agricultural fields to overcome the pre- and post-emergence of broad leaf weeds in cereal cultures. Intensive use of IPU is becoming a source of ground and surface water contamination. Several problems including cancer, endocrine disruption and inhibition of growth in humans, animals and plants are related to IPU toxicity. Keeping in view the environmental concerns associated with IPU, there is a need to develop the strategies for removal of IPU from our environment. In this regard, the present study was conducted firstly to estimate the potential of natural adapted microbial communities for biodegradation of IPU within the agricultural fields of Shorkot, Faisalabad and Sahiwal repeatedly exposed with this herbicide. The in-field spatial variability in IPU degradation within the field was correlated with the prevailing physicochemical properties of the respective soils and was found positively correlated with the organic matter content, total organic carbon as well as the abundance of culturable heterotrophic microorganisms and negatively correlated with the pH. The soil showing a good potential for removal of IPU was used to isolate the bacterial strain having the capability for biodegradation of this herbicide through enrichment culturing using IPU as a sole source of C and N. In this study, a bacterial strain designated as Sphingobium sp. S29 was found to have the potential for biodegradation of isoproturon. The sequence of whole genome of Sphingobium sp. S29 was also sorted using CLC for the functional IPU degrading genes and a putative pdmAB gene potentially involved in the initial steps of IPU degradation was identified. The strain S29 had the potential to degrade known metabolites of IPU including monodemthylisoproturon, didemtheyl-isoproturon and 4-isopropyl aniline as well as other structurally related phenylurea herbicides including diuron and chlorotuluron. The biodegradation of IPU by this strain was optimal under shaking at 30˚C and at 8.0 pH. The bioaugmentation study of the isolated bacterial strain carried out in soil microcosms revealed that this strain has a good potential for biodegradation of isoproturon in the soil in the presence of 24% moisture content and at 30 ˚C. Based on the findings of this study, it might be concluded that the isoproturon dissipation in the agricultural fields in variable not only from field to field but also at different points within the same field thanks to the prevailing physicochemical biological properties of the soils. Moreover, it can also be concluded that the strain Sphingobium sp. S29 can serve as a potential candidate for devising the strategies for bioremediation of the soils contaminated with isoproturon.
