Abstract
Abstract An experiment was conducted at the Agriculture Research Institute Mingora, Swat, Pakistan. The experiment was designed in Randomized Complete Block Design (RCBD) having three replications. The experiment consisted of two factors. i.e Trichoderma harzianum (0, 20 and 40 kg ha-1) and compost manure (0, 500, 1000 kg ha-1) that were applied as a single dose. The mean data showed that compost manure and Trichoderma significantly affected all growth parameters. Plants treated with 1000 kg ha-1 compost manure had maximum plant height (63.46 cm), number of leaves plant-1 (11.88), leaf length (39.62 cm), leaf width (1.05 cm), bulb diameter (6.88 cm), bulb neck height (5.6 cm) and yield (32.88 tones ha-1), but the parameters; plant height, number of leaves plant-1, leaf length and leaf width were statistically similar to the plots treated with compost @ 500 kg ha-1. Trichoderma @ 40 kg ha-1 showed maximum leaf length (39.56 cm), leaf width (1.09 cm), bulb weight (87.39 g), bulb diameter (7.06 cm) and yield (34.44 tones ha-1) . Plant height, number of leaves and bulb neck height were statistically similar to the plots which were treated with 20 kg ha-1Trichoderma. Whereas the lowest plant height (61.37 cm), number of leaves per plant (9.88), leaf length (37.21cm), leaf width (0.86 cm),bulb diameter (5.9 cm), bulb weight (77.14 g) and yield (27.22 tones ha-1) were recorded in untreated plots. It is concluded from the results that compost manure is a best soil amendment should be used @ 1000 kg ha-1 and Trichoderma @ 40 kg ha-1 for better growth and maximum onion production. Keywords: Trichoderma; compost; onion http://dx.doi.org/10.19045/bspab.2018.700192
Highlights
E (0, 500, 1000 kg ha-1) that were applied as a single dose
(1.05 cm), bulb diameter (6.88 cm), bulb neck height (5.6 cm) and yield (32.88 tones ha-1), but the parameters; plant height, number of leaves plant-1, leaf length and leaf width were statistically similar to the plots treated with compost @ 500 kg ha-1
Number of leaves and bulb neck height were statistically similar to the plots which were treated with 20 kg ha-1Trichoderma
Summary
Data related to cost benefit ratio is given in ratio (17.41) will mean that the farmer will the (Table 4). The cost of Trichoderma earn Rs. 17.41 for spending Rs. 1 on the application and Compost manure application treatment applied. In case of Trichoderma at different levels were taken in to treated plots, the maximum cost benefit ratio consideration while calculating cost benefit (4.43) was noted in plots which received 40 ratio. The cost of all cultural practices was kg ha-1 Trichoderma, followed by plants same for all treatments which had fixed cost
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