Results 261 to 270 of about 58,698 (300)

Effects of Seeding Rate on Growth Duration and Accumulation and Partitioning of Dry matter in Oats

Journal of Agronomy and Crop Science, 1994
AbstractCrop management influences considerably the three components of grain yield, growth duration, growth rate, and harvest index (HI). Effects of seeding rate on these yield components in oats (Avena sativa L.) was assessed in field experiments at the Viikki Experimental Farm, University of Helsinki, Finland (60°13′N) in 1991 and 1992.
P. Peltonen‐Sainio, P. Järvinen
openaire   +1 more source

Critical period for seed number determination in soybean as determined by crop growth rate, duration, and dry matter accumulation

Field Crops Research, 2021
Abstract Seed number (SN) is positively associated with aboveground dry matter (ADM) accumulation in most crop species. In soybean, there are discrepancies among studies relative to the start and end of the critical period for seed number determination. The objective of this study was to more precisely identify those two stages. To do so, we followed
Monzon, Juan Pablo, Cafaro la Menza, Nicolás, Cerrudo, Anibal Alejandro, Canepa, Matias, Rattalino Edreira, Juan Ignacio, Specht, James, Andrade, Fernando Héctor, Grassini, Patricio   +7 more
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EFFECTS OF NITROGEN RATES ON DRY MATTER AND NITROGEN ACCUMULATION IN CITRUS FRUITS AND FRUIT YIELD

Journal of Plant Nutrition, 2001
Fruit growth patterns and nitrogen (N) accumulation in fruit over the growth period were studied on ‘Valencia’, ‘Parson Brown’, ‘Hamlin’, and ‘Sunburst’ cultivars which received either 168, 224, or 280 kgNha−1yr−1 as broadcast applications of N:P:K dry soluble granular fertilizer. Over a 4-year period, fruit yields of all cultivars did not respond to N
A. K. Alva, S. Paramasivam, K. H. Hostler, G. W. Easterwood, J. E. Southwell   +4 more
openaire   +1 more source

Factors Limiting the Rate of Dry Matter Accumulation in the Grain of Wheat Grown at High Temperature

Australian Journal of Plant Physiology, 1980
Increasing temperatures from 21/16°C to 30/25°C, during the period of development from anthesis to maturity, substantially reduced grain dry weight in wheat. Although this was associated with a shorter duration of grain development, the failure to obtain any compensating increase in the rate of dry matter accumulation, as occurs in the lower ...
IF Wardlaw, I Sofield, PM Cartwright
openaire   +1 more source

Broccoli growth in response to increasing rates of pre-plant nitrogen. II. Dry matter and nitrogen accumulation

Canadian Journal of Plant Science, 2009
An understanding of plant nitrogen accumulation and soil nitrogen dynamics is needed to develop management practices that balance nitrogen requirements of vegetable crops with environmental protection. Field trials were conducted in 2001 and 2002 to determine the interaction of increasing rates of pre-plant nitrogen fertilizer with broccoli tissue ...
C. J. Bakker, C. J. Swanton, A. W. McKeown   +2 more
openaire   +1 more source

Rate of Dry Matter Accumulation in Soybean Seeds with Varying Source‐Sink Ratios¹

Agronomy Journal, 1976
AbstractThe rate of accumulation of dry weight in the seed is one important process in yield production by grain crops. Information on factors influencing the seed growth rate are needed to help identify yield limiting processes. This study was undertaken to determine the effect of varying source‐sink ratios on the rate of dry matter accumulation in ...
D. B. Egli, J. E. Leggett
openaire   +1 more source

Effects of reduced nitrogen application rate on drip‐irrigated cotton dry matter accumulation and yield under different phosphorus and potassium managements

Agronomy Journal, 2021
AbstractTo elucidate effects of reduced N application rate on dry matter accumulation and yield of drip‐irrigated cotton (Gossypium hirsutum L.) under different phosphorus and potassium managements (PK‐Ms), field studies with four reduced N application rates and four PK‐Ms were conducted in 2018 and 2019. Results show that after early peak boll‐forming
Yang Liu, Ming Wen, Minghau Li, Wenqing Zhao, Penbing Li, Jing Cui, Fuyu Ma   +6 more
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Dry Matter, Nitrogen, Phosphorus, and Potassium Accumulation Rates by Corn on Norfolk Loamy Sand¹

Agronomy Journal, 1987
AbstractThe maximum amount and rate of nutrient accumulation by irrigated corn (Zea mays L.) must be known so that farmers do not waste money or pollute water resources by applying excessive amounts of fertilizer. Aerial whole plant samples were therefore collected from irrigated field experiments conducted on Norfolk (Typic Paleudults) loamy sand in ...
D. L. Karlen, E. J. Sadler, C. R. Camp
openaire   +1 more source

THE EFFECT OF THE SOWING METHOD AND THE SEEDING RATE ON THE ACCUMULATION OF DRY MATTER AND YIELDS OF WINTER WHEAT

BULLETIN of the Korkyt Ata Kyzylorda University
В статье приведены результаты исследований по влиянию различных способов и норм высева на накопление сухой массы озимой пшеницы. Выявлены различия в темпах и объемах накопления сухого вещества в динамике технологий. Полученные данные помогут стабилизировать урожаи по величине и качеству. Представлена связь динамики накопления сухого вещества растений в
R.K. Zhapaev, M.Zh. Ashirbekov, A.E. Hidirov, A.A. Zhapparova, N.V. Malitskaya   +4 more
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Grain yield, dry matter accumulation and remobilization, and root respiration in winter wheat as affected by seeding rate and root pruning

European Journal of Agronomy, 2010
Abstract Field experiments conducted in 2007/08 and 2008/09 at the Changwu Agricultural Research Station on the Loess Plateau of China comprised three seeding rates (SR1: 225 seeds m −2 , SR2: 280 seeds m −2 , and SR3: 340 seeds m −2 ) and two root pruning treatments (W: root pruning in the over-wintering period and S: root pruning at the spring ...
Yan Fang, Bing-cheng Xu, Neil C. Turner, Feng-Min Li   +3 more
openaire   +1 more source