Effect of Irrigation Scheduling and Level of Nitrogen on Chandrasur (Lepidium sativum Linn.) in Zone III-B of Rajasthan, India

The present study was carried out to investigate the effect of irrigation and nitrogen levels on growth and yield of Chandrasur (Lepidium sativum Linn.) in two consecutive years Rabi 2018-19 and Rabi 2019-20 at Krishi Vigyan Kendra, Sawaimadhopur, Rajasthan. Results revealed that higher yield attributes No of branches plant-1, Fresh weight at harvest (g plant-1), 1000 seed weight (g), plant height (cm) were found significantly higher under three irrigation (25, 50 and 75 Days After Sowing) which was at par with two irrigations (25 & 50 Days After Sowing (DAS) and with 80 kg of N ha-1 which was at par with 60 kg N ha-1. Under different level of irrigations application of three irrigation (25, 50 & 75 Days After Sowing (DAS) found higher seed yield (1593.34 kg ha-1) which remained at par with two irrigation (25 & 50 DAS) compared to (one irrigation at 25 Days After Sowing), respectively. In sub plot treatments of different nitrogen levels Application of 80 kg of N ha-1 resulted in highest yield (1586 kg ha-1) which was statistically at par with 60 kg of N ha-1 as compared to 40 & 20 kg N ha-1 respectively.

Influence of Growing Media on Growth and Yield of Marigold (Tagetes erecta (L.)) under Protected Environment

A field experiment was conducted at Agricultural Engineering College and Research Institute, Kumulur, Trichy to study the effect of different growing media (Experimental plot Soil, Soil + Sawdust (2:1) and Soil + Coirpith (2:1)) with three level of irrigation (120% ETc, 100% ETc and 75% ETc) with three replication on the yield and water use efficiency. Among the treatments Soil + Coirpith (2:1) 100% ETc (T8) was found superior to all other treatment combination in producing higher yield of marigold flower. Maximum yield was recorded with treatment T8 which was 27% higher than the treatment T2. Similarly highest water usage efficiency was recorded in T8 (948.65 kg.ha-1mm-1). Therefore the study concluded that, the soil + coirpith (2:1) at 100% ETc would be best growing media as well as optimal irrigation level for growing marigold crop under greenhouse without causing any stress in irrigation and negative effects in plant growth parameters.