Response, relative efficiency and optimum dose of N and P for Indian rape (Brassica campestris var. toria) + Swede rape (Brassica napus) intercropping systems with or without organic manures

Virender Sardana; Sidhu, M.S.

Annals of Agricultural Research 20(1): 122-124

1999


Accession: 003259901

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Abstract
In a field study at Ludhiana, Indian Punjab in rabi 1988/89, combined seed yield of intercropped B. campestris var. toria and B. napus increased with up to 150 kg N and 30 kg P2O5/ha and was higher with application of Sesbania aculeata green manure or 20 t farmyard manure/ha than without organic manures. Equations for calculating optimum N and P rates in different manuring systems are presented.