Crop Physiology in Relation to Agronomic Management Practices

2013 ◽  
pp. 17-43 ◽  
Author(s):  
Danilo Scordia ◽  
Giorgio Testa ◽  
Salvatore L. Cosentino
Keyword(s):  
Management Practices ◽  
Crop Physiology ◽  
Agronomic Management

SUMMARY: PAPERS PRESENTED AT INTERNATIONAL WORKSHOP ON INCREASING WHEAT YIELD POTENTIAL, CIMMYT, OBREGON, MEXICO, 20–24 MARCH 2006 Challenges to international wheat improvement

2007 ◽  
Vol 145 (3) ◽  
pp. 223-227 ◽  
Author(s):  
M. P. REYNOLDS ◽  
P. R. HOBBS ◽  
H. J. BRAUN
Keyword(s):  
Management Practices ◽  
International Workshop ◽  
Green Revolution ◽  
Wheat Yield ◽  
Developed Countries ◽  
Yield Potential ◽  
Agronomic Practices ◽  
Agronomic Management ◽  
Genetically Improved ◽  
New Generation

Wheat is grown on 210 million ha throughout the world producing approximately 600 million tonnes of grain (10 year average; FAO 2005) and providing on average one fifth of the total calorific input of the world's population (FAO 2003). For some regions such as North Africa, Turkey and Central Asia, wheat provides half of total dietary energy intake. Of the cultivated wheat area, half is located in less developed countries where there have been steady increases in productivity since the green revolution, associated with genetic improvements in yield potential, resistance to diseases and adaptation to abiotic stresses (Reynolds & Borlaug 2006a, b) as well as better agronomic practices (Derpsch 2005). Nonetheless, challenges to wheat production are still considerable, especially in the developing world, not only because of increased demand but also because of the increased scarcity of water resources (Rosegrant 1997; WMO 1997), ever more unpredictable climates (Fischer et al. 2002), increased urbanization and loss of good quality land away from agriculture (Hobbs 2007), and decreased public sector investment in agriculture and rural affairs (Falcon & Naylor 2005). To meet demand in a sustainable way, more resources are required to breed a new generation of genetically improved cultivars as well as implement resource-conserving agronomic management practices.

scholarly journals The 1909 North Carolina Drainage Act and Agricultural Drainage Effects in Eastern North Carolina

2012 ◽  
Vol 128 (3-4) ◽  
pp. 59-73 ◽  
Author(s):  
Michael A. O'Driscoll
Keyword(s):  
North Carolina ◽  
Coastal Plain ◽  
Management Practices ◽  
Stream Water ◽  
Agricultural Drainage ◽  
Agricultural Lands ◽  
Stream Water Quality ◽  
Agronomic Management ◽  
Effective Drainage ◽  
Eastern North Carolina

Abstract Over the last two centuries, agricultural drainage in eastern North Carolina has transformed extensive wetlands to productive croplands. At the start of the drainage movement in the early 1900s, approximately 200,000 hectares (one half million acres) of drained agricultural lands existed in North Carolina. The 1909 North Carolina Drainage Act allowed for more extensive drainage projects. Drainage districts provided effective drainage outlets for farms and reduced flooding for the district. The districts dramatically increased the extent of drained lands during the 20th century. Currently, it is estimated that over 2 million hectares (five million acres) of drained agricultural lands exist in North Carolina, with the majority in the Coastal Plain. Agricultural drainage has contributed to huge gains in agricultural productivity in the region. However, this drainage has contributed to regional stream water quality impairment, altered stream hydrology, and wetland conversion. Over the last three decades, much work has been focused on reducing watershed nutrient exports in eastern North Carolina. Several major strategies have been used to decrease the environmental impacts of agricultural drainage, including: agronomic management practices; controlled drainage; riparian and wetland buffers; and channel alterations. Management of agricultural drainage during the 21st century will play a crucial role in regional stream, wetland, and coastal ecosystem health.

Nutrient status of rhizosphere and bulk soil in coleus as influenced by agronomic management practices

2021 ◽  
Vol 11 (4) ◽  
pp. 98-103
Author(s):  
P Arunjith ◽  
Sheeba Rebecca Isaac ◽  
KC Manorama Thampatti
Keyword(s):  
Management Practices ◽  
Nutrient Status ◽  
Bulk Soil ◽  
Agronomic Management

Fate of atrazine in a soil under different agronomic management practices

2014 ◽  
Vol 49 (11) ◽  
pp. 844-855 ◽  
Author(s):  
B. Prado ◽  
M. Fuentes ◽  
N. Verhulst ◽  
B. Govaerts ◽  
F. De León ◽  
...  
Keyword(s):  
Management Practices ◽  
Agronomic Management

scholarly journals Effect of integrated nutrient and agronomic management on growth, productivity, nutrient uptake and soil residual fertility status of soybean

2018 ◽  
Vol 8 (03) ◽  
Author(s):  
R. Sikka ◽  
D. Singh ◽  
J. S. Deol ◽  
Navneet Kumar
Keyword(s):  
Nutrient Uptake ◽  
Management Practices ◽  
Maximum Yield ◽  
Available N ◽  
Soybean Yield ◽  
Agronomic Management ◽  
Hand Weeding ◽  
Control Application ◽  
Wheat Straw Mulch ◽  
Different Levels

A field experiment on soybean was conducted at the regional research farm of the Punjab Agricultural University, Naraingarh (Distt. Fateh Garh Sahib) for three years under irrigated conditions for productivity enhancement through integrated nutrient and other agronomic interventions. There were twelve treatments comprising different levels of N, P, K, FYM and agronomic management practices. The results revealed that soybean significantly responded to the application of N, P, K and FYM. Maximum yield was recorded in the treatment where FYM was applied with NPK and resulted in an increase of 10.8 per cent over NPK alone. Application of additional 30 kg N ha-1 at pre-flowering or at pod initiation did not significantly enhance the yield over the basal dose of NP applied at sowing. Application of 4 tonnes wheat straw mulch + 30 kg N +60 kg P2O5 and 30 kg N + 60 kg P2O5 ha-1 showed similar effect on seed yield of soybean. No statistical difference in soybean yield was observed in the conventional flat and bed sowing treatments. Pre-emergence application of pendimethaline @ 1.5 l ha-1 along with one hand weeding at 40 days after sowing (DAS) and two hand weeding at 20 and 40 DAS were equally effective for weed control and in influencing the soybean yield. The application of N, P, K and FYM, in different treatments, treatment with Bradyrhizobium japonicum and sowing on beds all significantly improved the N, P and K uptake by soybean over control. Application of FYM to soybean resulted in maximum nutrient uptake by soybean. After three years a significant improvement in soil organic carbon, available N, P and K was observed in all treatments over control.

scholarly journals Tuberous root yield of Dahlia variabilis Wild (Desf.) under different agronomic management practices

Phyton ◽  
2011 ◽  
Vol 80 (1) ◽  
pp. 107-112
Author(s):  
Arenas Julio YR ◽  
R Delgado-Mart韓ez ◽  
EJ Morales-Rosales ◽  
A Laguna-Cerda ◽  
O Franco-Mora ◽  
...  
Keyword(s):  
Management Practices ◽  
Tuberous Root ◽  
Root Yield ◽  
Agronomic Management ◽  
Dahlia Variabilis

scholarly journals Mineral Composition and Baking Value of the Winter Wheat Grain under Varied Environmental and Agronomic Conditions

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Iwona Jaskulska ◽  
Dariusz Jaskulski ◽  
Lech Gałęzewski ◽  
Tomasz Knapowski ◽  
Wojciech Kozera ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Mineral Composition ◽  
Environmental Conditions ◽  
Management Practices ◽  
Mineral Nutrients ◽  
Bread Quality ◽  
Wheat Grain ◽  
Agronomic Management ◽  
Agronomic Conditions ◽  
Sedimentation Value

The mineral composition of cereal crops, the technological value of grain and flour, as well as bread quality are affected by the genotype, environment, and agronomic management practices. The aim of the research has been to investigate the effect of the environment and agronomic factors on the mineral composition and baking value of winter wheat grain. Opal cultivar grain of the genetically determined prime-quality wheat was obtained in a two-year field experiment (varied soil and weather). The agronomic management practices included tillage (conventional moldboard-plow, reduced ploughless, and strip-till) and nitrogen fertilisation rate (100 kg·N·ha−1, 200 kg·N·ha−1). In the grain samples, the content of macronutrients was assayed: P, K, Mg, Ca, and Na, total protein, and wet gluten as well as sedimentation value. The colour and the water absorption of flour and its content of protein and ash were determined. Laboratory baking was performed. It was found that the content of protein and gluten in grain, sedimentation value, bread volume, and weight changed depending on the environmental conditions and research years. Tillage and nitrogen rate, despite an effect on the properties of grain and flour, did not differentiate, however, the bread quality. The environmental conditions and agronomic management practices did not have a significant effect on the content of mineral nutrients in grain, except for calcium. The biofortification with mineral nutrients in prime-quality winter wheat cultivar grain by selecting the environmental and agronomic conditions seems more difficult than increasing the content of organic compounds and enhancement of flour and bread parameters.

Sign in / Sign up

Export Citation Format

Share Document