Raising summer season vegetable crops through intercropping in broccoli (Brassica oleracea L. var. italica) using different doses of nitrogen
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Date
2018
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Punjab Agricultural University, Ludhiana
Abstract
The present research work entitled, “Raising summer season vegetable crops through intercropping in broccoli (Brassica oleracea L. var. italica) using different doses of nitrogen” was accomplished in 2017 at Vegetable Seed Production Farm, Department of Vegetable Science, Punjab Agricultural University, Ludhiana. The experiment was replicated thrice in randomized complete block design (RCBD Factorial) comprising of 3 doses of nitrogen (N1 @125 kg/ha, N2 @ 150 kg/ha and N3 @ 175 kg/ha) and 9 different intercropping systems (T1-Sole Broccoli, T2-Broccoli + Tomato, T3-Broccoli + Capsicum, T4-Broccoli + Chilli, T5- Broccoli + Cucumber, T6-Sole Tomato, T7-Sole Capsicum, T8-Sole Chilli and T9-Sole Cucumber). All the growth, yield and quality parameters of broccoli and intercrops were significantly influenced by nitrogen doses. In case of broccoli, plant height, number of leaves per plant, leaf size, plant spread, height up to head, head diameter and weight, total yield, dry matter content, glucosinolates and nitrogen in leaves were highest in N3 and were statistically at par with N2. In different intercropping systems, N3 recorded the maximum value of growth and yield parameters followed by N2. N1 recorded the highest vitamin C. Among the intercrops, tomato plants showed the highest survival percentage and also recorded the highest gross returns, net returns and benefit cost ratio (BCR) followed by chilli. Land equivalent ratio (LER) was also significantly higher in broccoli + tomato. Based upon the present findings, it is concluded that growing broccoli + tomato/chilli using N2 (150 kg/ha) is a highly remunerative option for Punjab farmers in Rabi season.
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