Integrated nutrient management studies on growth, yield and quality of cucumber (Cucumis sativus L.) under protected condition
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Date
2019-07-10
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College of Horticulture and Forestry, Central Agricultural University, Pasighat
Abstract
The aforementioned experiment was conducted at College of Horticulture and Forestry, CAU, Pasighat, Arunachal Pradesh to study the influence of integrated nutrient management on growth, yield and quality of cucumber (Cucumis sativus L.) under protected condition. It was laid out in Randomized Block Design comprising of thirteen treatments replicated thrice. The experiment was carried out under the protected condition using a suitable cucumber hybrid during the off season. Suitable gynoecious hybrid variety (KSP-1301) was procured from Kalash Seed Pvt. Ltd., Jalna for this experiment.
The treatment details are T1 (RDF of NPK @ 150:120:120 kg/ha + FYM @ 15 t/ha), T2 (75% of RDF of NPK + FYM @ 20 t/ha), T3 (75% of RDF of NPK + FYM @ 15 t/ha + Azotobacter @ 5 kg/ha), T4 (75% of RDF of NPK + FYM @ 10 t/ha + Azotobacter @ 5 kg/ha + PSB @ 5 kg/ha), T5 (75% of RDF of NPK + vermicompost @ 7.5 t/ha), T6 (75% of RDF of NPK + vermicompost @ 5 t/ha + Azotobacter @ 5 kg/ha), T7 (75% of RDF of NPK + vermicompost @ 2.5 t/ha + Azotobacter @ 5 kg/ha + PSB @ 5 kg/ha), T8 (50% of RDF of NPK + FYM @ 30 t/ha), T9 (50% of RDF of NPK + FYM @ 25 t/ha + Azotobacter @ 5 kg/ha), T10 (50% of RDF of NPK + FYM @ 20 t/ha + Azotobacter @ 5 kg/ha + PSB @ 5 kg/ha), T11 (50% of RDF of NPK + vermicompost @ 10 t/ha), T12 (50% of RDF of NPK + vermicompost @ 7.5 t/ha + Azotobacter @ 5 kg/ha) and T13 (50% of RDF of NPK + vermicompost @ 5 t/ha + Azotobacter @ 5 kg/ha + PSB @ 5 kg/ha).
Integration of inorganic fertilizers, organic manures and biofertilizers has increased the efficacy of the nutrients in the soil. Integration of vermicompost with inorganic fertilizers and microbial inoculants has efficiently contributed in mineralisation of unavailable forms of nutrient to the available form. The results revealed that the vines of cucumber fertilized with T5 (75% of RDF of NPK + vermicompost @ 7.5 t/ha) recorded maximum vine length (190.26 cm), number of branches per plant (12.97) and internodal length (13.86 cm). However, the superior response in terms of flowering and the yield attributing parameters like minimum days to 50% flowering (34.01), minimum days to 50% fruiting (45.01), fruit length (16.20 cm), fruit breadth (4.21 cm), fruit girth (13.18 cm), fruit weight (197.39 g), yield of fruits per vine (1.75 kg), yield of fruits per plot (12.43 kg), number of fruits per vine (10.81), number of fruits per plot (91.51) and total yield (287.89 q/ha) was recorded from T13 (50% of RDF of NPK + vermicompost @ 5 t/ha + Azotobacter @ 5 kg/ha + PSB @ 5 kg/ha). Likewise, superior quality attributes like highest TSS (3.560 °Brix), lowest acidity (0.220%), total carbohydrate (1.140%) and total chlorophyll content (0.530 mg/g) with minimum physiological loss in weight (both shrink wrapped and unwrapped condition) was also witnessed from T13. Maximum shelf life was exhibited by the fruits harvested from T13. The post experimentation analysis of the soil revealed that the maximum amount of available NPK (319.88 kg/ha, 40.05 kg/ha, 261.36 kg/ha respectively) and organic carbon content of 2.33% was recorded from the experimental units fertilized with T13.
Description
experiment was conducted at College of Horticulture and Forestry, CAU, Pasighat, Arunachal Pradesh to study the influence of integrated nutrient management on growth, yield and quality of cucumber (Cucumis sativus L.) under protected condition. It was laid out in Randomized Block Design comprising of thirteen treatments replicated thrice. The experiment was carried out under the protected condition using a suitable cucumber hybrid during the off season. Suitable gynoecious hybrid variety (KSP-1301) was procured from Kalash Seed Pvt. Ltd., Jalna for this experiment.
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