http://www.indg.in/agriculture/agricultural-best-practices/organic-production/red-gram

Organic production techniques in Pigeonpea - Seed rate and Sowing

Seeds are sown 4-6 cm deep preferably by drilling, when the soil is wet. Quantity of seed and spacing varies, depending upon the crop variety and its crop duration as follows:

• Very early maturing –    Monocrop – 20 kg/ha, spacing 120 x 30 cm
• Early maturing –           Monocrop – 20 kg/ha, spacing 120 x 30 cm
• Medium duration –        Monocrop – 15 kg/ha spacing 60 x 20 cm

                                           Intercrop –   5kg/ha, spacing 30 x 20

• Long duration –            Monocrop – 12 – 15 kg/ha, spacing 60 x 20 cm

                                            Intercrop –   5 kg/ha, spacing 90 x 20 cm

According to the biodynamic principle, sowing is preferred around new moon day for better seedling nutrition, as the moon is away from the earth and nutrients concentrate towards roots.