:The studies were conducted on effect of integrated crop management on brinjal yield and economics through frontline demonstration at farmers field of Tumkuru district, Karnataka state during the year 2009-10 to 2011-12. The data revealed that the total yield gap between potential yield and actual yield of brinjal was 53.67 per cent, in which 16.92 per cent of yield gap between demonstration plot and actual farmers plot yield and 36.75 per cent of technological gap. The maximum number of farmers were adopted recommended spacing (88.33 %) followed by seed treatment (83.33 %), timely irrigation (81.67 %) and weed management (81.67 %). The increased in adoption level of package of practices were found to more in raising and selection of quality seedling from nursery (50.00 %) fallowed by selection of high yielding hybrid variety (46.67 %) and application of vegetable special (50.00 %). Whereas, the package of practices viz., plant protection measures to control pest and diseases (21.67 %), application of recommended dose of fertilizer (25.00 %) and seed treatment (26.67 %) were found to less increase in adoption level after frontline demonstration. There was significantly increased in brinjal yield (36.51 %), net return and B:C ratio after conduct of frontline demonstrations as compared to farmers practice. The adoption of package of practices even though after demonstrations programme, which shows positive impact of integrated crop management on brinjal yield and economics through adoption of demonstrated technology.

An experiment on Ridge gourd (Luffa acutangula L.) Effect of Biofertilizer on growth and yield attributes of Ridge gourd (Luffa acutangula L.) under zone -7 of Karnataka. The experiment was carried out at diploma (Agri) College Agricultural and Horticultural Research Station, Kathalagere, Davangere. In kharif season during the year 2022 with three replicated randomized block designs. with seven treatments in 6.5 x 5.5 m plot size twelve plant population was maintained in each plot with normal spacing given 1.5x1.5 m row and plant to plant respectively. The results of the experiment revealed Treatment T-5 (75% NPK + FYM +VC 1250 Kg/ha+ biofertilizer (Pseudomonous

The present investigation entitled, Evaluation of Chilli F1 hybrid cultivars (capsicum annum L.) chilli F1 hybrid suitable for green and dry chilli market under zone Southern zone of Karnataka. Eight chilli F1 hybrid cultivar where evaluated during the year kharif 2021 at Agricultural & Horticultural Research Station, Katahalagere (Davangere district). The Chilli F1 hybrid cultivar were collected from I I H R. Bangaloru eight cultivars.

A field experiment was conducted on assessment of yield and economics of vegetables as intercropping system in coconut garden for additional returns at different villages of Tiptur taluk, Tumkur districts of Karnataka during from 2013 to 2015 to study the influence of intercropping system on coconut yield, economics of coconut based intercropping system with vegetables and the soil fertility status of coconut garden. The experiment consisted of three different intercropping systems viz., coconut sole cropping as farmers practice (T 1 ), coconut + vegetable cowpea (T 2 ) and coconut + French bean (T 3 ) with seven replications at farmers field in a 36 year old coconut garden of Tiptur tall variety planted at 9m x 9m spacing. The average three year results of experiments were recorded. The yield of coconut was found to higher nut yield (9594 nuts/ha/year) under french bean as intercrop in coconut garden followed by cowpea as intercrop in coconut garden (9348 nuts/ha/year) during third year. Whereas lowest nut yield was recorded in coconut sole crop in farmers practice. The highest net annual income Rs. 99,720/ha and B:C 3.22 were recorded in coconut + French bean intercropping system with more additional income and market demand of beans followed by coconut + vegetable cowpea (Net annual income Rs. 84,260/ha and B:C 3.10) with less market demand of vegetable cowpea, where as lowest net annual income Rs. 43,107/ha and B:C 2.34 were recorded in coconut sole cropping with no additional income from the farmers practices. The soil fertility status viz., NPK availability in soil were analyzed before and after the experimental period of three year. Gradually increased N, P and K content of soil in coconut intercropping with beans and cowpea on far with each other, but lowest soil fertility were recorded in coconut as sole cropping system in farmers practices due to high biomass of french bean and cowpea, which fixes atmospheric nitrogen, residue incorporated into soil and suppression of weed growth results in improvement of soil fertility status. Higher net returns and improve the soil fertility by growing the french bean as intercrops in coconut garden is more suitable cropping system to boost economy of farmers.

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