Determination of crop coefficient of groundnut using lysimeter
| dc.contributor.advisor | Awari, H.W. | |
| dc.contributor.author | Balore, Kapileshwar Ashokrao | |
| dc.date.accessioned | 2023-03-21T07:32:11Z | |
| dc.date.available | 2023-03-21T07:32:11Z | |
| dc.date.issued | 2022-11-30 | |
| dc.description.abstract | The Indian population depends on agricultural production. as the, food demand is increased with increasing the country population hence there is a necessity to increase the productivity of crops. The improves water utilization due to either low efficiency of irrigation or inadequate irrigation scheduling can lead to loss of water, which resulting in higher production costs and negative environmental impacts. Maharashtra comes under to arid and semi-arid climate. Mostly the farmers of the Maharashtra, grow the summer groundnut which requires the accurate timely irrigation to get optimum production level. Groundnut is important protein crops grown in India generally under rain-fed conditions. In Marathwada groundnut is specially grown in the command area of Jayakwadi, Purna and Yeldari which comes under Aurangabad, Jalna, Parbhani, Hingoli and Nanded districts during summer season. To workout the precise irrigation water demand the present project entitled, “Determination of crop coefficient of groundnut using lysimeter” was carried out during year 2021-2022 at the Department of Irrigation and Drainage Engineering, CAET, VNMKV, Parbhani. The project aimed with specific objectives of determine crop coefficient for groundnut crop using lysimeter for computation of accurate irrigation water demand for irrigation planning and application. The weighing type lysimeter was installed to estimate the actual crop evapotranspiration considering water balance parameters. The potential evapotranspiration for Parbhani region was workout using daily weather data such as maximum and minimum temperature, average relative humidity, wind speed and solar radiation was collected from Department of Agriculture Meteorology. The results obtained for daily potential evapotranspiration was converted into week wise average potential evapotranspiration. It was found that potential evapotranspiration was ranges 4.4 mm to 7.3 mm, which increased with respect to change in climate during summer season. The actual evapotranspiration of crop i.e. ETc estimated during the crop growth season 2022 was 613 mm and week wise it ranged between 1.76 to 10.92 mm. During 15th MW actual evapotranspiration was lowered at 7.9 mmday-1 due to less potential evapotranspiration during the month of April. The crop coefficient ranged from 0.4 to 1.4 from the 6th MW to 19th MW, then it was decreased up to 0.7. During initial stage of groundnut crop Kc ranged 0.4 to 0.7 (1 to 30 days), then after it was increased 0.74 to 1.31 (31 to 65 days) during mid-season stage. During the development stage, it was almost all having constant Kc as to the tune 1.3 to 1.4 for the period of 30 days (66 to 95 days). Thereafter, during late season stage it was decreased 0.95 to 0.51 (96 to 110 days). It shows that as per crop growth stage crop coefficient increased from the 0.4 to 1.4. The comparison of lysimeter and FAO crop coefficient values showed that kc values were low initially, which increased to a maximum during crop development as the crop physiology fully developed and thereafter decreased during late season stage of groundnut at the time of harvest. The results indicated that the lysimeter Kc values were considerably different and higher than those suggested by FAO 56 which indicates the need to develop location specific crop coefficient values of crops. | en_US |
| dc.identifier.other | 23276 | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810195594 | |
| dc.keywords | Potential evapotranspiration, actual evapotranspiration, crop coefficient and lysimeter. | en_US |
| dc.language.iso | English | en_US |
| dc.pages | 88 | en_US |
| dc.publisher | Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani | en_US |
| dc.sub | Irrigation and Drainage Engineering | en_US |
| dc.theme | Agriculture | en_US |
| dc.these.type | M.Tech. | en_US |
| dc.title | Determination of crop coefficient of groundnut using lysimeter | en_US |
| dc.type | Thesis | en_US |