Effect of irrigation scheduling and nitrogen fertilization on physiological growth indices of Chandrasur (Lepidium sativum L.)
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Authors
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Nupur Sharma
Department of Agronomy, Agriculture University, Kota, Rajasthan, India
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Ankita
Department of Agricultural Statistics and Computer Application, Agriculture University, Kota, Rajasthan, India
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Versha Gupta
Soil Science & Agricultural Chemistry, Agriculture University, Kota, Rajasthan, India
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Vinod K. Yadav
Department of Agronomy Agriculture University, Kota, Rajasthan, India
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Anju Bijarnia
Department of Agronomy, Birsa Agricultural University, India
Keywords:
Chandrasur, growth indices, irrigation schedule, nitrogenAbstract
A two-year field experiment was conducted during 2018–19 and 2019–20 at Krishi Vigyan Kendra, Sawai Madhopur to evaluate the effect of irrigation scheduling and nitrogen fertilization on growth parameters of Chandrasur (Lepidium sativum L.). The results revealed that three irrigations (25, 50 and 75 DAS) recorded the highest plant height at 60, 90 DAS and at harvest (60.28 cm, 91.08 cm and 102.01 cm, respectively), which was significantly superior to two irrigations (I2) and one irrigation (I1). Among nitrogen levels, the maximum plant height was observed with application of 80 kg N ha-¹, which was significantly higher than that recorded with 60 kg N ha-¹. In terms of dry matter accumulation (g plant-¹) at 30, 60, 90 DAS and at harvest, crop growth rate (g m-² day-¹), and relative growth rate (g g–¹ day-¹), the interaction effect of three irrigations (25, 50 and 75 DAS) in combination with 80 kg N ha-¹ was found to be superior over two irrigations (25 and 50 DAS) with 60 kg N ha-¹. The findings indicate that appropriate irrigation scheduling combined with optimum nitrogen fertilization significantly enhances growth performance and physiological efficiency of Chandrasur.
