Trend and Growth Rate Estimation of Principal Crops in Karnataka State in India

The study undertaken to analyse the growth rate performance of area, production, productivity of selected crops in Karnataka from year 1997 to 2019. At state level, it was found that, the productivity of cereals showed positive growth with 1.22 percent. The area under maize increased by 5.30 percent by displacing Jowar, Bajra, minor millets. The rice and maize became stable crops in cultivation due its assured support prices and procurement from government. The production of pulses increased by 4.17 percent. The area under oil seeds showed negative trend with -5.87 percent which may be due to its high cost of production and unremunerative prices where as the commercial crops has recorded positive growth rates of production (2.69 percent) and productivity (2.43 percent) despite of its 0.24 percent area growth. The farmers prioritised sugarcane, cotton because of less labour requirements, good market prices. The Technology mission on oilseeds and Pulses in post 1990’s could be reason for increased production and productivity of pulses

Trend Analysis of Temperature and Rainfall across Agro Climatic Zones of Karnataka-A Semi Arid State in India

The study was carried out for ten Agro climatic zones in Karnataka state in India. The temperature and rainfall data were used for analysis from 1979-2019 which is about 40 years. Understanding spatiotemporal rainfall pattern, Rainfall Anomaly Index which is drought indicator technique was used to classify the positive and negative severities in rainfall anomalies. The RAI ranges below 0.2 are considered as dry zone. The analysis resulted that, all zones are falls in category of dry zone with range of 0.2 to 0.4. For past five years, North Eastern Transition Zone was noted maximum times falling in the range of RAI below 0.2 and near to zero. Statistical techniques like linear trend estimation, R square was used for trend estimation across annual, seasonal to identify the variation in the temperature across different zones. The meaningful statistically significant achieves when there is r2≥0.65 and p≤0.05. It was analysed that, hilly Zone experienced decreased trend in both minimum and maximum temperature in all seasons which ultimately reflected in annual temperature to decrease with high R square values

Change Point Detection of Temperature in Karnataka State in India During the Period 1979-2019

This paper deals with study of exposure of Karnataka state to climate change for a period 1979-2019. The Mann Whitney Pettit’s homogeneity test (MWP) was analysed for 240 data sets for monthly data of minimum (MTmin) and maximum temperature (MT max) across ten agro climatic zones) to estimate the year of structural break or year of shift in mean monthly temperature from one level to next higher level during the forty years of study period i.e., 1979-2019. About 77 data sets were identified to show year of structural break The annual mean temperature recorded anupward shift in all the agro climatic zones of Karnataka except in hilly zone. The break year was chosen based on its frequent occurrence in data sets of minimum and maximum temperature.  It is observed to be 1998 for North Eastern Transition Zone and is 1997, 1994, 1996, 1995, 1996, 1999, 1999, 1999 and 1997 for North Eastern Dry Zone, Northern Dry Zone, Central Dry Zone, Eastern Dry Zone, Southern Dry Zone, Southern Transition Zone, Northern Transition Zone, Hilly Zone and Coastal Zone respectively. Therefore, it is a evidential picture reflecting the increase in temperatures across the zones. Researchers should develop crop varieties that are insensitive to temperature changes and should develop packages of practices which will mitigate adverse effect of fluctuations in climate parameters on crop productivity

Assessment of Spatial and Temporal Drought Severity: A Study in Transition Zone of Karnataka State in India

Rainfall data from 1979-2019 was analysed across the agro climatic zones in transition region of Karnataka. Rainfall Anomaly Index and Mean deviation methods are used to identify drought years and wet years over both spatial and temporal on time scale. The North Eastern Transition Zone can be considered as most vulnerable zone as it recorded for about 24 dry years values which indicates existence of persistence drought in this zone. The Northern Transition Zone is not vulnerable when compared to Northern Eastern Transition Zone as most of the drought year values are nearer to wet year values (RAI -0.3 to -1.2) which implies that this zone has moderate drought condition. The Southern transition zone has normal drought condition (RAI +0.3 to -0.3) which implies neither wet nor neither dry condition. But if proper conservations were not taken, this zone may come in the hit list of most vulnerable zone in near future which will harm the farming community

Assessment of Spatial and Temporal Drought Severity: A Study in Transition Zone of Karnataka State in India

Rainfall data from 1979-2019 was analysed across the agro climatic zones in transition region of Karnataka. Rainfall Anomaly Index and Mean deviation methods are used to identify drought years and wet years over both spatial and temporal on time scale. The North Eastern Transition Zone can be considered as most vulnerable zone as it recorded for about 24 dry years values which indicates existence of persistence drought in this zone. The Northern Transition Zone is not vulnerable when compared to Northern Eastern Transition Zone as most of the drought year values are nearer to wet year values (RAI -0.3 to -1.2) which implies that this zone has moderate drought condition. The Southern transition zone has normal drought condition (RAI +0.3 to -0.3) which implies neither wet nor neither dry condition. But if proper conservations were not taken, this zone may come in the hit list of most vulnerable zone in near future which will harm the farming community

Farmer’s Perception and Efficacy of Adaptation Strategies to Climate Change in North Eastern Transition Zone of Karnataka State in India

A primary survey during the year 2021-22 was carried out among the 240 farmers of Bidar and Gulbarga districts of North Eastern Transition Zone in Karnataka to study the farmer’s perception on climate change for the period 1979 to 2019 and validate their opinions with the change in the meteorological indicators. About 74 percent of farmers expressed that there is a decline in crop yield while 83 percent of farmers opined that is a shift of employment from farm to non-farm activities during the period of forty years. Farmers practice various farm adaptation strategies activities to overcome the effect of climate change. Through Garatte ranking, it is revealed that most of the farmers prefer to practice alteration of sowing dates of crop (rank 1) as adaptation strategy followed by using of drought tolerant varieties (rank 2) and mixed cropping (rank3). Binary Logit analysis was used to identify the socio- economic attributes of households influencing the adoption of adaptation strategy to climate change. The results showed that, the variables like farm size, access to institutional credit, live stock ownership and climate information are the factors which positively shows significant influence on adoption. Economic incentives play an important role in the adoption of modern technologies. Access to institutional credit will support the farmers financially in adopting water conservation techniques like farm ponds, micro irrigation products

Impact of Krishi Bhagya Yojana (KBY) Farm Pond Technology on Semi-Arid Farmers in North Eastern Transition Zone of Karnataka State in India

Efficient water management through farm pond technology is a great initiative by Krishi Bhagya Yojana scheme in 2015. Out of 240 sample farmers, about 180 farmers are adopters and 60 are non adopters of farm pond technology in Bidar and Gulbarga districts of Karnataka. Majority of farmers prefer farm pond of size 30 m × 30 m × 3 m as during Kharif season with storage capacity of 2700 cubic metric which is able to   irrigate 1.5 ha land area .Through analysis, it is found that, the cropping intensity was increased to 225 per cent from 203.75  which accounts 9.47  per cent change  to that of the base year. The percent change in area under rabicrops was relatively more when compared with farm ponds which directly increase their income by sale of crops in market. The number of migrating people decreased from six to three persons after adoption of KBY by the beneficiary farmers. The most influencing factors in adoption of farm pond technology by farmers are access to rural credit, diffusion of information and adoption of high value crops