TALEY, Dr. S. M.JIWTODE, KANCHAN VILAS.2018-10-132018-10-132018-10-10JIWTODE, KANCHAN VILAS. (2018). Assessment of agroclimatic water balance and length of growing period for crop planning in Yavatmal district. Soil and Water Conservation Engineering (Agricultural Engineering), Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. M. Tech. 2018. Print. xi, 105p. (Unpublished).http://krishikosh.egranth.ac.in/handle/1/5810081047The climate sensitivity of agriculture is uncertain, as inter-annual variations in temperature and rainfall were much higher than the predicted changes in temperature and rainfall. The study was undertaken with specific objectives to study the effect of climate change on rainfall and temperature for Yavatmal district. For analyzing the effect, 20 years (1998 to 2017) daily rainfall, maximum and minimum temperature data were used. Evaluation of water balance components is carried out for sixteen talukas of Yavatmal district. Also the length of growing period based on the index of moisture adequacy is evaluated The results obtained from the analysis of water balance and length of growing period used for crop planning of Yavatmal district. Also the water availability during the critical growth stages of the crop and crop evapotranspiration are taken into the account for the crop planning. The suitability of the selected crops viz. cotton, soybean, pigeon pea, sorghum, green gram and black gram checked at taluka level for the Yavatmal district.An agroclimatic study was conducted at Yavatmal district using database of 20 years (1998-2017) to study the effect of climate change on rainfall and temperature and assess agroclimatic water balance and length of growing period for crop planning. Average annual maximum temperature shows the increasing trend at the rate 0.29 °C/year whereas minimum temperature shows the decreasing trend at the rate 0.23 °C/year over the study period. The rainfall shows more or less constant in Arni, Mahagaon and Kelapur. Yavatmal, Babulgaon, Kalamb, Darvha, Digras, Ner, Pusad, Ghatanji and Ralegaon shows decreasing trend of rainfall at the rate of 0.18 mm/year, 0.16 mm/year, 0.21 mm/year, 0.27 mm/year, 0.14 mm/year, 0.04 mm/year, 0.26 mm/year, 0.02 mm/year and 0.01 mm/year respectively whereas Umarkhed, Wani, Maregaon and Zari Jamani shows the increasing trend of the rainfall at the rate of 0.10 mm/year, 0.02 mm/year, 0.04 mm/year and 0.14 mm/year. The normal annual rainfall varies from about 850 to 1150 mm in south-west monsoon season, i.e., June to September. Pusad shows maximum average rainfall whereas Zari Jamani shows minimum average rainfall in the monsoon month as compared to other talukas. Average weekly PET value observed more than 30 mm during 7 to 43 SMW. The average weekly total AET is varied from 0.05 mm to 32.49 mm. The total annual surplus was varied from 67.14 mm in Zari Jamani to 332.93 mm in Darvha. The 50% of AWHC duration lasts maximum for Darvha (18 weeks) whereas it is lesser for Zari Jamani (8 weeks). The annual effective rainfall was found highest in the Pusad i.e. 655.49 mm and lowest in Darvha i.e. 474.94 mm during period of 1998 to 2017. The highest effective rainfall was found in June to July i.e. from 23 to 43 SMW. Under average rainfall condition, water availability period observed during 24 to 42 SMW. The average length of growing period of the study area is 154 days. Crop planning based on LGP, available rainfall and crop evapotranspiration in the growing stages of cotton, soybean, pigeon pea, sorghum, green gram and black gram suggested are suitable to grow in Yavatmal, Kalamb, Darvha, Ner, Wani and Maregaon. Zari Jamani is not suitable to grow cotton and pigeon pea. Babulgaon, Digras, Arni, Pusad, Umarkhed, Mahagaon, Kelapur, Ghatanji and Ralegaon are suitable for cotton and pigeon pea only if protective irrigation facilities are available.enClimate, Climate Change, Rainfall, Temperature, Water Balance, Length of Growing Period, Crop Planning, Available Water Holding Capacity, Field Capacity, Soil Types, Yavatmal, Potential Evapotranspiration, Actual Evapotranspiration, Hargreaves- Samani Model, Water Surplus, Water Deficit, Effective Rainfall, Soil Moisture Index, Moisture adequacy index, Agroclimatic, Water Availability Period, Suitability of Crops, Protective irrigation, Crop Evapotranspiration.Thesis