Download or read book Response of Sunflower to Nitrogen Application Timing written by Muhammad Saleem Kubar and published by LAP Lambert Academic Publishing. This book was released on 2014-08-05 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sunflower is the second most important oil seed crop in the world. Nitrogen is the most of important nutrient for crop production and is required throughout the crop growth period from vegetative stage to subsequent harvesting. One of the main causes of low yield is imbalanced and inadequate supply of nutrients. Proper amount and time of fertilizer application is considered a key to the bumper crop. The most logical approach to increasing N fertilizer use efficiency is to supply nitrogen when it is needed by the crop. Use of optimum amount of fertilizer through a suitable application method at a time when it is most efficiently and effectively utilized is imperative. Plant N use efficiency can be improved by matching application rate and timing with plant demands. This study was proposed to investigate the effect of timing and nitrogen fertilizer application on growth and yield of sunflower.

Download or read book Effect of Rates and Time of Nitrogen Application on the Performance of Sunflower Helianthus Annuus L written by Shekh zafar S. Quadri and published by . This book was released on 1975 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Rates and Time of Nitrogen Application on the Performance of Sunflower Helianthus Annuus L written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Response of Sunflower Genotypes to Time of Nitrogen Applications written by Sudhakar M. V. and published by . This book was released on 1984 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitrogen and Sunflower written by Oudho Persaud Homenauth and published by . This book was released on 1985 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Response of Sunflower Helianthus Annuus L to Nitrogen and Phosphorus Application Under Irrigated Conditionsin Rabi Season written by Jagtap S M. and published by . This book was released on 1988 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitrogen in the Environment Sources Problems and Management written by R.F. Follett and published by Gulf Professional Publishing. This book was released on 2001-12-03 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen in the Environment: Sources, Problems, and Management is the first volume to provide a holistic perspective and comprehensive treatment of nitrogen from field, to ecosystem, to treatment of urban and rural drinking water supplies, while also including a historical overview, human health impacts and policy considerations. It provides a worldwide perspective on nitrogen and agriculture. Nitrogen is one of the most critical elements required in agricultural systems for the production of crops for feed, food and fiber. The ever-increasing world population requires increasing use of nitrogen in agriculture to supply human needs for dietary protein. Worldwide demand for nitrogen will increase as a direct response to increasing population. Strategies and perspectives are considered to improve nitrogen-use efficiency. Issues of nitrogen in crop and human nutrition, and transport and transformations along the continuum from farm field to ground water, watersheds, streams, rivers, and coastal marine environments are discussed. Described are aerial transport of nitrogen from livestock and agricultural systems and the potential for deposition and impacts. The current status of nitrogen in the environment in selected terrestrial and coastal environments and crop and forest ecosystems and development of emerging technologies to minimize nitrogen impacts on the environment are addressed. The nitrogen cycle provides a framework for assessing broad scale or even global strategies to improve nitrogen use efficiency. Growing human populations are the driving force that requires increased nitrogen inputs. These increasing inputs into the food-production system directly result in increased livestock and human-excretory nitrogen contribution into the environment. The scope of this book is diverse, covering a range of topics and issues from furthering our understanding of nitrogen in the environment to policy considerations at both farm and national scales.

Download or read book Response of Sunflower Helianthus Annuus Linn to Nitrogen Phosphorus and Plant Geometry written by Krishan Kumar and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Response of Sunflower Helianthus Annuus L to Varied Level of Nitrogen and Plant Population Under Rainfed Conditions written by HULAGUR B. S and published by . This book was released on 1995 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Response of Sunflower to Varied Levels of Nitrogen and Phosphorus in Summer Season written by G. S. Chandrasekhar and published by . This book was released on 1998 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Nitrogen on Sunflower Productivity in the Big Horn Basin written by Austen Alexandra Samet-Brown and published by . This book was released on 2017 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: The production of high quality confectionary sunflower seeds and sunflower seed oil is important in the production of this crop. Very little research has been done that looked at and documented the effect of nitrogen on sunflower hybrids, oil quality and confectionary seed quality components. Therefor studies were conducted in 2014 and 2015 to determine the effects of nitrogen rates and hybrids on sunflower growth, yield, oil content, oil quality, and confectionary seed quality and size on sunflowers being grown in the Big Horn Basin. Results from the study showed that the measured sunflower growth parameters and seed yields were not affected by the different rates of applied nitrogen fertilization. However, the different sunflower hybrids did impact the measured growth parameters and yield data. Sunflower plant height was inconsistent amongst hybrids throughout the growing seasons, however, in general, the two confection seed hybrids matured faster than the oil seed hybrid with hybrid Sierra maturing the slowest. Harvest weight results were also inconstant amongst the hybrids in 2014 and 2015. The head diameter measurement showed a significant difference amongst hybrids in both 2014 and 2015 where oil seed hybrids Defender Plus and Sierra had the largest head diameters of 52.8 and 56.1 centimeters in 2014 and 59.2 and 29.4 centimeters respectively in 2015. In regards to seed yields hybrids D9512 and Defender Plus were consistently yielding the highest whereas oilseed hybrid X9452 was consistently the lowest yielding sunflower hybrid. The oil quality, when looking at the proportion of saturated, monounsaturated and polyunsaturated fatty acids, were not significantly affected by varying rates of applied nitrogen fertilizer. However, there were a few individual fatty acids that were effected by nitrogen rates but these components contributed very little to the overall quality of the oil. The oil content percentage was significantly affected by nitrogen application in 2015 but not in 2014. The results show a higher oil content percentage of 33.5% at the lowest rate of applied nitrogen (84 kg N/hectare) and the lowest oil content percentage of 30.0% at the highest rate of applied nitrogen (336 kg N/hectare). These results are relatively consist with other studies done on this subject. The oil quality and content did differ between hybrids, in regards to quality we would expect this as two of our hybrids were high oleic hybrids and the other was a high linoleic hybrid. The oil content percentage was inconstant however in general hybrid Sierra seamed to produce the lowest oil content while hybrid Defender Plus and X9452 had higher oil content percentages. The confectionary sunflower seed quality was not impacted by nitrogen application rates or hybrid. Results from this study show that sunflower production in the Big Horn Basin of both confectionary seeds and oil seeds under irrigation can be a viable market for producers to enter. Results also suggest that a lower rate of nitrogen fertilizer could be used to obtain competitively high yields as well as a high quality product in regards to confectionary seeds and oil quality and content.

Download or read book Integrated Nutrient Management Soil Fertility and Sustainable Agriculture Current Issues and Future Challenges written by Peter Gruhn, Francesco Goletti, and Montague Yudelman and published by Intl Food Policy Res Inst. This book was released on 2000 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Response of Sunflower to Irrigation and Nitrogen written by Ramesh Kumar G. and published by . This book was released on 1995 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings written by and published by . This book was released on 1982 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Morphological differences between high and low yielding hybrids of sunflower; A study of the morphological characters of sunflower achenes in relation to their emergence under adverse conditions; The effects of ethephon on dormant seeds of cultivated sunflower (Helianthus annuus L.); Pathways of yields elaboration in sunflower under various water stresses; The behaviour of some sunflower genotypes (Helianthus annuus L.) under various flooding regimes; Tolerance of sunflower hybrids to competition among plants; Growth analysis irrigated sunflower at two plant populations; Estimation of leaf area on sunflower plants; Photosynthesis in sunflower leaves: RUBP carboxylates properties activities and quantitative determination; Effects of defoliation during seed filling of sunflower plants; Evolution for biosynthesis during the cycle of development of sunflower, and assimilates partition among organs and constituents; The sunflower roots activity in the field; Effect of daylength in the time of inflorescence initiation and rate of post-initiation development in two early sunflower cultivars; Yield and harvest index of sunflower cultivars: influence of duration and water stress; Determination of physiological nad harvest maturity in sunflower; Effect of physiological maturation on quantitative characters of sunflower varieties and hybrids; Growth and development of sunflower in a semi-arid environment; Determination of regional strategies for sunflower production; Effect of early spring planting of sunflower on yield in Iraq; Oil content oi oilseed sunflower (Helianthus annuu L.) hybrids grown in Texas, USA; Effect of the planting date of sunflowers on the agronomic characteristics and on the quantity and quality of oil; A technique for selecting sunflower genotypes with temperature-stable linoleic acid synthesis; Water requirement of sunflower in a semi-arid environment; Effect of irrigation on water use pattern in sunflower root zone; Influence of plant population on phasic development, growth, yield and water use of irrigated sunflower in a semi-arid environment; The response of sunflower to strategies of irrigation; Salinity and sunflower agronomy in Egypt; Effect of sodium chloride on the lipid composition of sunflower oil; Nitrogen nutrition of sunflower with special reference to nitrogen stress; Effect of nutritional and cultural treatments on seed production on winter grown sunflower; The response of irrigated sunflower cultivars to nitrogen fertilizer; Studies of the uptake of soil and fertilizer nitrogen by sunflower using 15-N techniques; Interactions between moisture supply, N and P, in the performance of an open-pollinated and a hybrid sunflower variety in a semi-arid environment; Differential response to two sunflower cultivars to boron fertilization; Effect of phosphorus and nitrogen fertilization levels on the yield and oil content of sunflower (Helianthus annuus L.); Pollination studies in hybrid sunflower seed production; Sunflower hollow seededness and nitrogen fertilization in relation to harvest time; Effect of achene (seed) size on subsequent growth and development of hybrid sunflower (Helianthus annuus L.); Behaviour of NS sunflower hybrids harvested at different seed moistures; Evaluation of losses in the harvesting of sunflower; Maturity and seed quality in sunflower: physiobiochemical assessment through accelerated ageing; Irrigated sunflower production from the red-brown soils of Northern Victoria; Irrigated sunflower in the Ord River Valley; Potential for pest management in sunflowers in Australia; Insect and mite pests of Queensland sunflowers; Seasonal abundance of the Rutherglen bug (Nysius vinitor) on sunflowers and weeds in N.E. Victoria; Effect of moisture stress on damage to sunflowers by Rutherglen bug (Nysius vinitor); Sunflower seed yield as influenced by pollination and insect pests; Effect6 of maldison (malathion) ULV) on sunfloer insects; Phytomelanin: development and role in hybrid resistance of Homoeosoma electellum larvae (Lepidoptera: Pyrallidae); The control of alternaria blight of sunflowers in Eastern Australia; Some factors affecting the incidence and importance of sunflower rust in Australia; Investigations into increased rust (Puccinia helianthi) intensity on some hybrid sunflower cultivars grown in Queensland; Occurrence of sunflower diseases in Portugal in the last four years (1978 - 1981); White blister and petiole blight of sunflowers caused by Albugo tragopogonis; Stemphylium sp. the agent of reddish-brown spot on sunflowers stem; Further studies on the sunflower disease caused by Diaporthe (Phomopsis) helianthi and possibilities of breeding for resistance; A leaf spot disease of sunflower caused by Septoria sp.; The distribution, and incidence of charcoal rot of sunflower in Eastern Australia; Effect os stand density on the occurrence of charcoal rot and oil yield of some sunflower hybrids; Methods of studying the reaction of some cultivars and wild species of sunflower to infection by Sclerotinia sclerotiorum (Lib) de Bary; Field inoculation of sunflower for Sclerotinia sclerotiorum basal stalk rot and virulence of isolates from various hosts; Coniothyrium minitans as a treatment for sclerotinia wilt of sunflowers; The use of high frequency microwaves on sclerotia to control inoculum of Sclerotinia sclerotiorum; Use of the enzyme-linked immunosorbest assay (Elisa) for the detection of downy mildew (Plasmopara halstedii) in sunflower; Resistance to a new race of sunflower downy mildew; A new race of Verticillium dahliae; Models for potential status of infection: some aspects of the functioning of the climate x plant x pest system; Models for potential status of infection: application to sunflower-botrytis; A model for the development of grey mould (Botrytis cinerea) in sunflower heads; Losses caused in sunflowers by birds in Hungary; Pest status of parrot species on sunflowers in northern N.S.W.; An innovation in the control of galahs, Cacatua roseicapilla, and sulphur-crested cockatoos, Cacatua galerita, in sunflower; The economics of chemical dessication and mechanical drying as methods of reducing bird damage in sunflower; Very early combine harvesting of sunflower to avoid bird depredation; Allelopathic activity of cultivated sunflowers; Post-emergence weed control in sunflower; Information concerning the effect of cultivation as a complement for weed control; Utilization of wild Helianthus annuus in germplasm development; Cluster analysis of wild Helianthus annuus accessions; Variability on oil content in seed pf Helianthus spp.; Variation in oil and quality of wild annual sunflower (Helianthus annuus L.) populations in a uniform environment; Variability in the composition of higher fatty acids in oil of sunflower inbreds with different oil contents in seed; Variability in protein and amino acid contents in different sunflower inbreds; Investigations into seedset in sunflowers; Effect of isolation bags on seedset in sunflowers; Effect of stigmatic manipulation of pollination and seedset in sunflowers; The inheritance of drought tolerance in sunflower; Inheritance of plant height and leaf number in diallel crossing of sunflower inbreds; Inheritance of trichome characteristics in sunflower, Helianthus spp.; Genetic implications in transfering fertility restorer genes to a new genetic background in sunflower Helianthus annuus L.); Correlations for important agronomic characters between parent lines and F1 hybrids of sunflower; Relationships among traits of inbreds and hybrids of sunflower; Maternal and embryo effects on the oleic and linoleic acid contents of sunflower oil; Maternal and paternal effects on the oil content of cypsela in F1 seed; Genetic effect of days to flowering in sunflower (Helianthus annuus L.) under short day regimes; Epistatic gene action in sunflower - a caution to sunflower geneticists and breeders; Use of multivariate techniques in a breeding programme to assit selection of sunflower inbreds and hybrids; Stratified masal selection on sunflower as breeding method for synthetic varieties for forage or grain; Selection of sunflower plants containing high linoleic acid and its agronomic significance; Selection in sunflowers for resistance to Rutherglen bug (Nysius vinitor); Chemically induced mutations in sunflower; Genetic advances by mass selection in the oil percentage of sunflower (Helianthus annuus L.); Performance of early maturing hybrids in Manitoba, Canada; Sunflower variety evaluation, Coonabarabran, NSW, Australia; Evaluation of sunflower hybrids in international trial plantings; Plant breeder's rights and varieties registration in France; An objective description of sunflower for varietal registration, plant variety protection and other purposes; Oil quality analyser; TBHQ in sunflower oil; Utilization of sunflower oil in making plastic fat products for edible uses by miscella interesterification process; Plant oils as a fuel for diesel engines: experiences with sunflower oil; Energy farming update: the bio-oil option?; Lysine availabity in sunflower meals for pigs and chiks; What will the market place expect from sunflower?.

Download or read book Response of Sunflower to Nitrogen and Sulphur Nutrition written by Yammela Ramu Reddi and published by . This book was released on 2001 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Response of Sunflower Helianthus Annuus L Genotypes to Varying Levels of Nitrogen written by Faizani K. G. M. and published by . This book was released on 1988 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Response of Sunflower Thus Annuus Cultivars to Nitrogen and Phosphorus Application Under Irrigated Conditions in Rabi Season written by B. D. Kale and published by . This book was released on 1991 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: