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Accueil du site → Master → Inde → 2011 → Nitrogen and phosphorus management in Kalmegh (Andrographis paniculata) under semi-arid condition of Latur

Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (2011)

Nitrogen and phosphorus management in Kalmegh (Andrographis paniculata) under semi-arid condition of Latur

Waware, Rajendra Sitaram

Titre : Nitrogen and phosphorus management in Kalmegh (Andrographis paniculata) under semi-arid condition of Latur

Auteur : Waware, Rajendra Sitaram

Université de soutenance : Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani

Grade : Master of Science (MS) in Soil Science and Agricultural Chemistry 2011

Résumé
A field experiment was carried out on effect of different levels of nitrogen and phosphorus on growth, uptake of N, P and K and biomass yield of kalmegh in kharif season during the year 2010-11 at Departmental farm. College of Agriculture, Latur. The experiment was laid in factorial randomized block design with three replications consisting of four N levels (0, 40, 80 and 120 kg ha’1) and four levels of P (0, 20, 40 and 60 kg ha’1). The results of field study indicated that the growth uptake of nutrients and biomass yield of kalmegh were significantly influenced by different levels of N and P. Application of 120 kg N ha-1 significantly improved all growth parameters in terms of plant height (50.81 cm), number of leaves (112.00), number of branches (31) and higher yield parameters i.e. fresh weight per plant (21.40 g), dry weight per plant (12.71 g), fresh herbage yield per hectare (6352.66 kg) and dry herbage yield per hectare (2795.00 kg) and uptake of nutrients at all the stages of kalmegh. Soil chemical properties and available nutrients status of soil after harvest of kalmegh crop were also improved due to application 120 kg N ha’1. Hence balance of available nitrogen, phosphorus and potassium was enhanced due to application of 120 kg N ha’1. Among the different P levels 60 kg P ha’1 was found superior in growth parameter in terms of plant height (48.01 cm), number of leaves (110.24), number of branches (30.88) and higher yield parameters i.e. fresh weight per plant (19.62 g), dry weight per plant (11,34 g), fresh herbage yield per hectare (5598.70 kg) and dry herbage yield per hectare (2524.98 kg) and uptake of nutrients followed by 40 kg P ha’1. Significant improvement in availability of soil nutrients viz. N, P and K was observed due to 60 kg P ha’1. Thus, it can be concluded that application of 120 Kg N and 60 Kg P2O5 ha "1 (N3P3) significantly superior followed by 80 Kg N + 40 Kg P2O5 ha 1 (N2P2) over control under semiarid conditions of Latur.

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