ABSTRACT
If the plant population per unit area is worked out, requirement of seeds can easily be calculated, provided the weight of seed and its germination percentage is known. Let us consider the example plant population/ha is 2,50,000. If the weight of single seed is 0.02 g and germination is 100%,weight of seed required/ha will be 2,50,000 × 0.02 g= 5,000g= 5 kg. If the germination is less than 100 %,proportionately higher amount of seeds will have to be sown to desired population. Under 80% germination,100/80=1.25 times higher seeds must be sown. Thus, seed requirement will be 2,50,000 × 0.02 × (100/80) g= 6250 g = 6.25 kg. Likewise, if the seed is not 100% pure, proportionately higher amount of seeds will have to be sown to maintain the desired population. As such, if the purity of seed is 95 %, 100/95=1.0526 times higher seeds than calculated above will have to be sown. Thus, seed requirement will be 2,50,000 × 0.02 × (100/80) × (100/95) g = 6579 g = 6.579 kg https://www.w3.org/1998/Math/MathML"> Seed requirement ( g/m 2 ) = Area ( m 2 ) × Weight of seeds ( g ) × 100 × 100 Spacing ( m 2 ) × Germination p .c . × Purity p .c https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003347286/0078e0c3-1247-4955-b95a-8a9a47baf4a3/content/matha10_1_B.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/>
