39 research outputs found
Influence of growth, yield and quality of guava (Psidium guajava L.) by drip irrigation and fertigation
Get PDFA study was conducted during 2010-2015 at Central Institute of Agricultural Engineering, Bhopal, to find out effect of irrigation and fertigation scheduling on growth, yield and quality of guava (Psidium guajava ). The ex-periments were laid out in factorial randomized block design with six treatment combinations which include three irrigation level (100, 80 and 60 %) along with two fertigation level (100 and 75 % water soluble fertilizers) and repli-cated thrice. The nitrogen, phosphorus and potassium fertilizers were applied through fertigation as well as soil ap-plication to test various attributes of five six old guava cv. L-49. The investigation indicated that the maximum plant height, Periphery of rootstock, yield per plant (kg/plant) and yield (t/ha) were higher under D1F1 (100 % irrigation with 100 % fertigation) followed by D2F1 (80 % irrigation with 100 % fertigation) and minimum under D3F2 (60 % irrigation with 75 % fertigation). Interaction effect was non-significant at 0.05 % level due to plant height (3.90 m) and Periphery of rootstock (26.26 cm) but significantly influenced by yield per plant (27.65 kg/plant) and yield (7.65 t/ha). Physico-chemical properties like fruit diameter (6.76 cm), fruit weight (182.10 g) and pulp weight (134.38 g) were significantly at 0.05 % due to different irrigation and fertigation level as well as interaction effects but fruit length (7.45 cm), TSS (13.22 %) and ascorbic acid (54.32 mg/100 g pulp) were non-significant due to different level of irri-gation and fertigation as well as interaction effect
Mole Drainage to Enhance Soybean Production in Waterlogged Vertisols
No full textVertisols have poor internal drainability when wet, requiring closely spaced drains for excess water removal. Mole drainage is a pipe-less drainage technology popular in UK, New Zealand and Australia. Its use in fine textured soils using standard mole ploughs is mainly confined to those countries where mole plough development took place. In India, few laboratory studies were reported apart from one field study at Digod, Rajasthan on mole drainage. A 4-year (2004–2007) field experiment was carried out at the Central Institute of Agricultural Engineering, Bhopal on the feasibility of mole drainage for draining excess rain water in vertisols. A 56 PS wheeled tractor was used in drawing mole drains at 2, 4 and 6 m spacings and at a constant depth of 0.60 m at a grade of 0.8 per cent. In each of the spacing, 4 lateral drains were drawn to a length of 60 m. The soil moisture content was 22.5% at moling depth. The crop yields increased by about 50% in the mole drained plots, as compared to the control. The cost of installation of mole drains was recovered in the first year of installation. For four years, the drains were functioning well as a result of which soybean yields increased in mole drained area
