Contribution of green manuring, farmyard manure and rice husk ash to yield and nutrition of paddy

Mehla, D.S.; Sagwal, K.K.; Dabas, D.S.

Ecological agriculture and sustainable development volume 1 Proceedings of international conference on ecological agriculture towards sustainable development, Chandigarh, India, 15-17 November 1997: 596-603


Accession: 003079161

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A field experiment was conducted in India from 1990 to 1996 on a Vertic Ustochrept soil with paddy cv. HKR 120 with four manure treatments: control (no manure), green manure (GM) with dhaincha (Sesbania aculeata), farmyard manure (FYM) and rice husk ash superimposed with 0, 40, 80, 120 and 160 kg fertilizer-N/ha. The manures increased the mean grain yield which was 6.89, 6.74, 6.16 and 5.43 t/ha in GM, FYM, ash and control treatments, respectively. Similarly, fertilizer-N level (kg/ha) increased the grain yield up to 80 in GM, up to 120 in FYM and up to 160 in ash and control treatments. The optimum dose of fertilizer-N was 182.8, 171.8, 119.7 and 93.8 kg/ha with the corresponding optimum yield of 7.11, 7.24, 7.31 and 7.25 t/ha in control, ash, FYM and GM treatments, respectively.