Abstract
Cumin is one of the important spice crops grown in arid and semi arid regions of India and is being adopted to cure some of the dreaded diseases. Determination of optimum water requirement which is function of soil crop and atmosphere is needed for achieving more profit and higher productivity per unit of water. Keeping in view, a field experiment was undertaken to access the conjugate impact of three irrigation regimes (0.6IW/ETc, 0.8IW/ETc and1.0IW/ETc) and three lateral spacing (0.60m, 0.70m and 0.80m) on productivity of cumin. Split plot design with three treatment replications was adopted. Drip irrigation with 0.8 IW/ETc resulted higher seed yield, plant height and dry matter of 1344.17 kg/ha, 36.42 cm and 2365 kg/ha respectively at 0.8 IW/ETc with lateral spacing 0.6 m as compared to other treatments. Highest water use efficiency (5.58 kg/ha.mm) was observed at 0.6 IW/ETc with 0.60 m lateral spacing. Highest B:C ratio (2.27) observed at 0.8 IW/ETcwith lateral spacing 0.6m as compared to other treatments.
Highlights
India is the largest consumer and producer of cumin in the world
The results revealed that there was significant difference in plant height, dry matter yield and seed yield due to interaction effect of irrigation regimes and lateral spacing
Being an important spice crop and precise water demanding crop water saving methods needs to implement in the cumin
Summary
India is the largest consumer and producer of cumin in the world. Gujarat is the leading state contributing more than 70 percent in cumin acreage and production followed by Rajasthan It is cultivated in Rabi season in areas receiving low rainfall, and possess well-drained soil, cool-dry and clear climatic condition. In the present environment the authors are not advocating micro sprinkler system due to: (a) requirement of more energy than drip (b) low distribution efficiency due to prevailing wind speeds at later stages of crop growth and deterioration in quality and longevity of the seeds and lastly the reduction in the intensity of the pests and diseases. The research on drip system to cumin[3, 7, 8] was mainly focused on plant density, irrigation interval only.The drip irrigation is beneficial only when the system is designed efficiently and irrigation schedules are adopted properly. No work in this direction was progressed. Keeping into cognizance the problems above addressed a study was undertaken to analyze the performance of different irrigation regimes and lateral spacing on morphological and yield attributes of cumin
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