Soil moisture induced yield variability in major crops of Karnataka
South interior Karnataka, being a major rainfed zone contributing to production of pigeonpea, finger millet, groundnut, etc., suffers from severe yield instability due to dependency on rainfall. As the distribution of rainfall (spatial and temporal) is erratic, droughts are becoming a common phenom...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Indian Council of Agricultural Research
2022-03-01
|
| Series: | The Indian Journal of Agricultural Sciences |
| Subjects: | |
| Online Access: | https://epubs.icar.org.in/index.php/IJAgS/article/view/104382 |
| _version_ | 1811169115442774016 |
|---|---|
| author | H S SHIVARAMU M H MANJUNATHA LINGARAJ HUGGI SANTANU KUMAR BAL P VIJAYA KUMAR H S PADMASHRI D V SOUMYA L NAGESHA M MOHANTY |
| author_facet | H S SHIVARAMU M H MANJUNATHA LINGARAJ HUGGI SANTANU KUMAR BAL P VIJAYA KUMAR H S PADMASHRI D V SOUMYA L NAGESHA M MOHANTY |
| author_sort | H S SHIVARAMU |
| collection | DOAJ |
| description |
South interior Karnataka, being a major rainfed zone contributing to production of pigeonpea, finger millet,
groundnut, etc., suffers from severe yield instability due to dependency on rainfall. As the distribution of rainfall
(spatial and temporal) is erratic, droughts are becoming a common phenomenon and adversely affecting regional crop production by influencing soil moisture availability. Regression studies on per cent available soil moisture (PASM) and yield were conducted based on long-term field observations in 2014–19 on soil moisture and crop yields in finger millet, pigeonpea and groundnut at UAS-GKVK, Bengaluru. The outcomes indicated large yield variability due to minor soil moisture differences. In finger millet, at 58 PASM, 50% (1500 kg/ha) of normal yield was obtained and at 40 PASM, only 25% of normal yield was obtained. In pigeonpea, the crop yield recorded at 25 PASM was 8–18% (202–347 kg/ha) of the normal yield. In groundnut 50 PASM gave 41% of normal yield. The outcome indicated different soil moisture requirement for different crops, stressed the need for amending existing non-crop specific PASM ranges for drought declaration. Amendments were brought in by considering different PASM levels in these three crops finger millet: 20–40 as severe, 40–60 as moderate, >60 as no drought; in pigeonpea, 25–30 as severe, 30–60 as moderate, >60 as no drought; in groundnut, 35–50 as severe, 50–70 PASM as moderate, >70 as no drought. Since the practicality of the study was proven, the amendments were given in the drought manual published by ministry of farmers’ welfare.
|
| first_indexed | 2024-04-10T16:38:03Z |
| format | Article |
| id | doaj.art-9e21564704414bd29737ba67764de2b6 |
| institution | Directory Open Access Journal |
| issn | 0019-5022 2394-3319 |
| language | English |
| last_indexed | 2024-04-10T16:38:03Z |
| publishDate | 2022-03-01 |
| publisher | Indian Council of Agricultural Research |
| record_format | Article |
| series | The Indian Journal of Agricultural Sciences |
| spelling | doaj.art-9e21564704414bd29737ba67764de2b62023-02-08T11:12:38ZengIndian Council of Agricultural ResearchThe Indian Journal of Agricultural Sciences0019-50222394-33192022-03-0192710.56093/ijas.v92i7.104382Soil moisture induced yield variability in major crops of KarnatakaH S SHIVARAMU0M H MANJUNATHA1LINGARAJ HUGGI2SANTANU KUMAR BAL3P VIJAYA KUMAR4H S PADMASHRI5D V SOUMYA6L NAGESHA7M MOHANTY8University of Agricultural Sciences, GKVK Campus, Bangalore, KarnatakaUniversity of Agricultural Sciences, GKVK Campus, Bangalore, KarnatakaUniversity of Agricultural Sciences, GKVK Campus, Bangalore, KarnatakaICAR-Central Research Institute for Dryland Agriculture, Hyderabad, TelanganaICAR-Central Research Institute for Dryland Agriculture, Hyderabad, TelanganaUniversity of Agricultural Sciences, GKVK Campus, Bangalore, KarnatakaUniversity of Agricultural Sciences, GKVK Campus, Bangalore, KarnatakaUniversity of Agricultural Sciences, GKVK Campus, Bangalore, KarnatakaICAR-Indian Institute Soil Science, Bhopal, Madhya Pradesh South interior Karnataka, being a major rainfed zone contributing to production of pigeonpea, finger millet, groundnut, etc., suffers from severe yield instability due to dependency on rainfall. As the distribution of rainfall (spatial and temporal) is erratic, droughts are becoming a common phenomenon and adversely affecting regional crop production by influencing soil moisture availability. Regression studies on per cent available soil moisture (PASM) and yield were conducted based on long-term field observations in 2014–19 on soil moisture and crop yields in finger millet, pigeonpea and groundnut at UAS-GKVK, Bengaluru. The outcomes indicated large yield variability due to minor soil moisture differences. In finger millet, at 58 PASM, 50% (1500 kg/ha) of normal yield was obtained and at 40 PASM, only 25% of normal yield was obtained. In pigeonpea, the crop yield recorded at 25 PASM was 8–18% (202–347 kg/ha) of the normal yield. In groundnut 50 PASM gave 41% of normal yield. The outcome indicated different soil moisture requirement for different crops, stressed the need for amending existing non-crop specific PASM ranges for drought declaration. Amendments were brought in by considering different PASM levels in these three crops finger millet: 20–40 as severe, 40–60 as moderate, >60 as no drought; in pigeonpea, 25–30 as severe, 30–60 as moderate, >60 as no drought; in groundnut, 35–50 as severe, 50–70 PASM as moderate, >70 as no drought. Since the practicality of the study was proven, the amendments were given in the drought manual published by ministry of farmers’ welfare. https://epubs.icar.org.in/index.php/IJAgS/article/view/104382DroughtPASMFinger milletGroundnutPigeonpea |
| spellingShingle | H S SHIVARAMU M H MANJUNATHA LINGARAJ HUGGI SANTANU KUMAR BAL P VIJAYA KUMAR H S PADMASHRI D V SOUMYA L NAGESHA M MOHANTY Soil moisture induced yield variability in major crops of Karnataka The Indian Journal of Agricultural Sciences Drought PASM Finger millet Groundnut Pigeonpea |
| title | Soil moisture induced yield variability in major crops of Karnataka |
| title_full | Soil moisture induced yield variability in major crops of Karnataka |
| title_fullStr | Soil moisture induced yield variability in major crops of Karnataka |
| title_full_unstemmed | Soil moisture induced yield variability in major crops of Karnataka |
| title_short | Soil moisture induced yield variability in major crops of Karnataka |
| title_sort | soil moisture induced yield variability in major crops of karnataka |
| topic | Drought PASM Finger millet Groundnut Pigeonpea |
| url | https://epubs.icar.org.in/index.php/IJAgS/article/view/104382 |
| work_keys_str_mv | AT hsshivaramu soilmoistureinducedyieldvariabilityinmajorcropsofkarnataka AT mhmanjunatha soilmoistureinducedyieldvariabilityinmajorcropsofkarnataka AT lingarajhuggi soilmoistureinducedyieldvariabilityinmajorcropsofkarnataka AT santanukumarbal soilmoistureinducedyieldvariabilityinmajorcropsofkarnataka AT pvijayakumar soilmoistureinducedyieldvariabilityinmajorcropsofkarnataka AT hspadmashri soilmoistureinducedyieldvariabilityinmajorcropsofkarnataka AT dvsoumya soilmoistureinducedyieldvariabilityinmajorcropsofkarnataka AT lnagesha soilmoistureinducedyieldvariabilityinmajorcropsofkarnataka AT mmohanty soilmoistureinducedyieldvariabilityinmajorcropsofkarnataka |