Growth media standardization and organic nutrient scheduling for container grown yardlong bean (Vigna unguiculata sub sp. sesquipedalis (L.) Verdcourt)
Keywords:
coir pith compost, container/ growbag cultivation, growth media, organic nutrient scheduling, urban farming, yardlong beanAbstract
An investigation was undertaken at College of Agriculture, Vellayani, Thiruvananthapuram, Kerala during Rabi 2016-17 to standardize growth media and organic nutrient scheduling for container grown yardlong bean variety Githika. The treatments consisted of three growth media M1: soil: sand: FYM (1:1:1) M2: soil: sand: coirpith: FYM (1:0.75:0.25:1) M3: soil: sand: coirpith: FYM (1:0.50:0.50:1) with three levels of nutrient viz., N1: 100% recommended dose of NPK, N2: 150% recommended dose of NPK and N3: 200% recommended dose of NPK and two times of application T1: Full NPK as basal, T2: Half N, full P & K as basal+ half N as fermented groundnut cake at fortnightly intervals upto 50% flowering in two splits (30 and 45 DAS). Results of the study indicated that among the growth media, M3 registered significantly higher values for growth parameters viz., primary branches, functional leaves per plant, crop duration and number of pods per plant and was on par with M2. Pod yield per plant and number of pickings were superior for M3. The different nutrient levels did not exert any significant influence on growth attributes. However, N1 recorded the highest number of pods per plant and harvest index. Considering the time of application, T2 was found superior with respect to most of the yield attributes viz., number of pods per plant, pod yield per plant, total dry matter yield per plant, number of pickings and harvest index. Higher number of pods was recorded at all nutrient levels indicating the fact that whatever be the level of nutrient, split application of N helped in production of a greater number of pods. Among the third order interactions, m3n1t2 registered the highest pod yield per plant (973.76 g).References
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