The paper describes the effect and experimental result of replacement of eggshell powder in cement. The compressive test was carried out for concrete replaced with 10%, 15% and 20% of eggshell powder in Portland pozzolona cement. The results came indicates the eggshell powder can be used in replacement for cement.

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The study was carried out to investigate the effect of foliar application of chitosan with 1, 2 and 3 g l -1 concentrations applied at different time (once, twice and three times) on vegetative growth and yield attributing traits of strawberry (var. winter dawn) during 2019-20. Results revealed that all tested foliar concentration of chitosan increased vegetative growth characteristics viz., (plant height 23-28 cm, number of trifoliate leaves/ plants 22-28, leaf area 92-105.65 cm 2 and plant dry weight 23-33 g) and yield attributes (berry length 3.41-3.96 cm, berry diameter 2.82-3.15 cm, berry weight 16.93-18.55 g and number of berries/ plant16.6-19.74) compared to water spray. Among the chitosan treatment, application of chitosan at 3 g l -1 on 45, 90 and 135 days interval recorded maximum yield (366 g plant -1 ) followed by chitosan at 3 g l -1 on 45 and 90 (346 g plant g plant -1 ) and chitosan at 2 g l -1 on 45 and 90 days (343 g plant -1 ) interval due to higher growth and yield attributing traits. There was no significant effect for the tested treatments on runner production.

During the summer of 2018, an experiment was done at the Agronomy Field Unit, College of Agriculture, Navile, Shivamogga, and Karnataka. Okra (cv. Arka Anamika) is primarily grown for its fruits and used as a vegetable because its fruits and leaves contain calcium, iron, proteins, and vitamins, all of which are dietary supplements required for a basic diet. Vegetable demand is higher in urban areas even though they are grown in sewage water and are better for human consumption. As a result, okra was chosen as the test crop, and it was watered with Normal Water (NW), Treated Sewage Water (TSW), and Untreated Sewage Water (UTSW) separately and in conjunctive mode, resulting in nine treatments reproduced three times using the RCBD design. The treated and untreated sewage water obtained from college where it is created in huge amounts and on a continual basis. To grow the crops, the recommended package was followed. In comparison to the application of NW, TSW and UTSW irrigation changed the soil’s chemical properties. The results indicated that TSW application resulted in a larger height (168.50), number of leaves (33.00), and number of branches (4.47). However, sewageirrigated soils were much below the salinity threshold, resulting in improved crop growth components and yield. TSW application resulted in a higher fruit production of 32.35 t ha-1 compared to NW (25.20 t ha-1) and UTSW applications (21.61 t ha-1). It's also worth noting that in the conjunctive mode of application, one or two times of NW application fb TSW in cyclic mode resulted in yields of 28.12 and 29.22 t ha-1, respectively, putting them closer to those of plots getting TSW. It also opens the way to the conclusion that sewage water derived from campus has the fewest influencing factors, affecting crop growth insignificantly, and indicating its prospective usage.

This study evaluated the development of above ground plant parts of strawberry cv. 'Winter dawn', in naturally ventilated polyhouse with seven media combinations using six pot culture media viz., soil, sand, farmyard manure, cocopeat, vermicompost and vermiculite under vertical faring system. The study revealed that maximum plant height (29.13 cm), number of trifoliate leaves per plant (27.80), plant spread in North-South and East-West direction (31.27 cm and 30.21 cm, respectively), leaf area (108.26 cm 2 ), number of crowns per plant (4.56), number of runners per plant (6.13), plant dry weight (38.50 g) at harvest, yield per plant (391.24 g), yield over control (61.12%), net income (1,22,183 ₹/ 1032 m 2 ) and benefit to cost ratio (2.04) was observed in treatment T4 containing Soil + cocopeat + vermiculite + vermicompost in 1:1:1:1 ratio on volume basis followed by the treatment T6 containing cocopeat + vermiculite + vermicompost in the ratio of 1:1:1.