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Organic production techniques in Pigeonpea - Fertilizer management

Fertilizer management

  • Use of green manure crops is an ideal preposition for soil enrichment. In Maharashtra pre-monsoon shower starts by the end of May. Taking advantage of such showers sprinkle 1-2 kg seeds each of Sunhemp, Sesban, Horse Gram, Cow pea, Green gram and Black gram and allow them to grow for 30 days. Incorporate this green manure crop into the soil by shallow tilling during first week of July and go for red gram sowing after 7-8 days of incorporation. Addition of 5-10 quintal Neem leaf/seed manure has also been found to be beneficial not only in terms of increased nutrient supply, but also in terms of reduced problem of soil borne pathogens and nematodes (Yadav and Mowade, 2005).
  • "Sanjeevak", a fermented liquid manure prepared from cattle dung and cow urine is a key on-farm input in fertility management of soils under organic management. Amrutpani, a soil tonic can also be used in place of Sanjeevak. 200 lit of Sanjeevak/acre is applied on soil either along with the irrigation water or sprinkled over the soil surface during or after mild rains. Minimum of three applications of Sanjeevak are necessary. First at the time of sowing, second after 25-30 days (after first weeding) and third after 50-60 of sowing (after second weeding).
  • For better crop growth, “Jeevamrut” (Life tonic) is used as foliar spray, at least on three occasions with an interval of 20 days after 20 days of sowing. In south Indian states farmers use Panchgavya in place of Jeevamrut as foliar spray (Vijayalakshmi et al, 2005).
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