Light interception and yield response of cotton varieties to high density planting and fertilizers in sub-tropical India
Journal Title: Journal of Applied and Natural Science - Year 2017, Vol 9, Issue 3
Abstract
Plant density and optimum fertilization are two important agronomic practices to enhance productivity of cotton (Gossypium hirsutum L.) varieties. The objective of this study was to investigate the effect of high density planting (HDPS) and fertilization rate, especially their interactions, on yield, yield components of cotton varieties in sub-tropical India. Split-split plot design was adopted and replicated thrice. The main plots were assigned to low, medium and high plant densities (16.7, 13.3 and 11.1 plants/m2). Pre released cotton varieties TCH-1705 and LH-2298 were tested in low, moderate and high rates of fertilizers recommended for the region (100, 125 and 150 %) in sub-sub plots. Significantly higher seed cotton yield (1148 kg/ha) was achieved in narrow inter row spaced at 60 cm over normal plant row spacing of 90 cm (1025 kg/ha). Compact genotype TCH-1705 was out yielded (1146 kg/ha) over LH 2298(1044 kg/ha). Application of fertilizers at higher rate improved seed cotton yield (1232 kg/ha) Leaf area index (3.8) and light interception (0.98) over blanket recommendation. The results of the study inferred that seed cotton yield improvement was possible under HDPS production system with compact varieties grown at narrow spacing and higher fertilizer dose.
Authors and Affiliations
M. Y. Ajaykumar, M. R. Umesh, Shivaleela Shivaleela, J. M. Nidagundi
Keywords
Related Articles
- EP ID EP286896
- DOI 10.31018/jans.v9i3.1448
- Views 80
- Downloads 0
Biochemical responses of cucumber to Tetranychus urticae Koch (Acari: Tetranychidae) mediated biotic stress
The effect of two spotted spider mite (Tetranychus urticae Koch) feeding on leaf level physiological characteristics of cucumber (Cucumis sativus Linnaeus) was investigated. Young cucumber plants were artificially infest...
Household dynamics and small timber consumption in rural Kashmir (J&K), India
The study examined the extraction and consumption pattern of small timber and its socioeconomic and forest resource determinants among the rural people in district Ganderbal of Kashmir. The results showed that the total...
Rarity of Ceropegia bulbosa Roxb. var. lushii and protocol for its ex-situ conservation in the Indian desert
Over expolitation of tubers of Ceropegia bulbosa var. lushii which is a narrow endemic in the Indian Desert has drastically declined its populations and made it threatened. This was confirmed by its absence at its previo...
Bioefficacy of cow urine based eco-friendly formulations against Spilarctia obliqua (Walker)
The laboratory studies were conducted to assess the bio-efficacy of cow urine and jatropha seed extracts prepared in water and cow urine (@ 5% and @10% against different stages of Spilarctia obliqua. The cent per- cent m...
Histopathological alterations in gills of freshwater prawn, Macrobrachium dayanum (Crustacea - Decapoda) after acute and sub-acute exposure of lead nitrate
Lead is a nonessential “grey listed” heavy metal, used in fuels, ceramics, paints and glass wares in industries and vehicles. After taking entry in aquatic ecosystem it becomes toxic and cause serious problem to plants a...