Effect of Nutrient Management and Planting Geometry on Productivity of Hybrid Rice (<i>Oryza sativa</i> L.) Cultivars

Abstract

ABSTRACT

Effect Of Planting Geometry On Growth Of Rice Varieties

“…Shah et al, (1991) and H. Om et al, (1993), who reported that the plant height is significantly affected by the different planting geometry and found maximum plant height in closer plant spacing. These results are also accordance with Bezbaruha et al, (2011) and Rasool et al, (2013), who reported that closer plant spacing, produced tallest plant height than wider plant spacing in rice. Mahato and B.B.…”

PRODUCTIVITY OF RAINFED RICE (Oryza sativa L.) AS INFLUENCED BY CROP GEOMETRY IN THE CONTEXT OF CLIMATE CHANGE

“…The tendency of increasing 1000 grain weight with increased spacing was also observed by Rashid & Khan (2006). Treatment with 20 cm x 20 cm spacing + neem and tobacco extract (7.78 t/ha) recorded significantly higher grain yield over treatment at spacing 20 cm x 20 cm + Matka khad (6.93 t/ha) and 20 cm x 15 cm + inorganic fertilizers, conventional practice (6.69 t/ha) and 20 cm x 20 cm + (Bezbaruha et al, 2011) and more area of land around them to draw the nutrition and more solar radiation to absorb for better photosynthetic process and hence performed better as individual plant (Mohaddesi et al, 2011) and leading to more dry matter production ultimately resulting in yield enhancement. Moro et al (2016) reported that wider spacing of 25 cm x 20 cm and 20 cm x 20 cm, produced 8.06 and 7.56 t ha -1 more grain over the closer spacing of 30 cm x 10 cm and 15 cm x 15 cm.…”

“…However, treatment with 20 cm × 20 cm spacing + Matka khad was statistically at par with 20 cm × 20 cm spacing + neem and tobacco extract. Adoption of wider spacing for rice transplanting may have resulted in higher grain weight than at closer spacing (Gautam et al, 2008), and due to nutrient management practices (Bezbaruha et al, 2011). The tendency of increasing 1000 grain weight with increased spacing was also observed by Rashid & Khan (2006).…”

“…(Ogbodo et al, 2010). Transplanting of rice at a wider spacing produced a significantly higher number of tillers/hill as compared to closer spacing which may be due to increase in available nitrogen levels (Gautam et al, 2008;Bezbaruha et al, 2011;Mohaddesi et al, 2011). According to Rajput et al (2016) number of tillers/m 2 was significantly higher in wider spacing with 20 cm × 20 cm as compared to other planting geometry.…”

“…However, 20 cm × 20 cm spacing + Matka khad (20.54 cm) found statistically at par with spacing 20 cm × 20 cm + neem and tobacco extract. The wider spacing adopted appears to be an advantageous factor for better development of panicles, hence more panicle length and it might be because of filled grains/panicle (Bezbaruha et al, 2011;Rasool et al, 2013). The yield attributes viz., panicles/m 2 , panicle length and filled grains/panicle was significantly influenced by spacing and nutrient management practices (Damodaran et al, 2012).…”