نتایج جستجو برای: controlling crop losses

تعداد نتایج: 260548  

2014
E. M. Onkendi G. M. Kariuki M. Marais L. N. Moleleki

Meloidogyne species pose a significant threat to crop production in Africa due to the losses they cause on a wide range of agricultural crops. The direct and indirect damage caused by various Meloidogyne species results in delayed maturity, toppling, reduced yields and quality of crop produce, high costs of production and therefore loss of income. In addition, emergence of resistance-breaking M...

2016
Abdul Rashid Gaurav Kumar Taggar Mohd Yousuf Barkat Hussain

1 International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru 502324, Telangana, India. 2 Department of Plant Breeding & Genetics, Punjab Agricultural University, Ludhiana-141004, India. 3 Department of Botany and Biotechnology, Degree College Sopore-193201, J&K, India. 4 Department of Entomology, SKUAST-K; Shalimar, Srinagar, J&K, India. *Corresponding author: abdul...

2016
J. K. Ladha A. Tirol-Padre C. K. Reddy K. G. Cassman Sudhir Verma D. S. Powlson C. van Kessel Daniel de B. Richter Debashis Chakraborty Himanshu Pathak

Industrially produced N-fertilizer is essential to the production of cereals that supports current and projected human populations. We constructed a top-down global N budget for maize, rice, and wheat for a 50-year period (1961 to 2010). Cereals harvested a total of 1551 Tg of N, of which 48% was supplied through fertilizer-N and 4% came from net soil depletion. An estimated 48% (737 Tg) of cro...

2017
Mary Bomford MARY BOMFORD

The most significant damage inflicted by birds in Australia is to germinating cereal and to ripening sunflower and fruit crops. The main pests are several native psittacine and corvid species, silvereyes (Zosterops lateralis) and European starlings (Sturnus vulgaris). The economic cost of damage is largely unquantified. While losses to industries as a whole are often low, losses to individual g...

2011
Mikhail A. Semenov Peter R. Shewry

New crop cultivars will be required for a changing climate characterised by increased summer drought and heat stress in Europe. However, the uncertainty in climate predictions poses a challenge to crop scientists and breeders who have limited time and resources and must select the most appropriate traits for improvement. Modelling is a powerful tool to quantify future threats to crops and hence...

2016
Ben A Woodcock Nicholas J B Isaac James M Bullock David B Roy David G Garthwaite Andrew Crowe Richard F Pywell

Wild bee declines have been ascribed in part to neonicotinoid insecticides. While short-term laboratory studies on commercially bred species (principally honeybees and bumblebees) have identified sub-lethal effects, there is no strong evidence linking these insecticides to losses of the majority of wild bee species. We relate 18 years of UK national wild bee distribution data for 62 species to ...

ژورنال: علوم آب و خاک 2020

Sloping farmlands are the major sources of soil, water and nutrient losses in arid and semi-arid regions. Information about the impacts of different tillage practices on soil erosion, nutrient loss and crop nutrient uptake on the sloping farmland of semi- arid soil is, however, limited. This study was carried out to investigate the effects of tillage direction on soil, water, nitrogen and phosp...

2017
R. J. Johnson

We estimate the annual financial losses resulting from wildlife damage to major crops and livestock in Nebraska. For each wildlife species, the damage problem is presented along with a description of how the estimate was made. Field crop estimates include losses from Plains pocket gophers (Geomys bursarius), commensal rodents (Rattus norvegicus and Mus musculus), field rodents in grain fields (...

2015
Víctor Resco de Dios Jacques Roy Juan Pedro Ferrio Josu G. Alday Damien Landais Alexandru Milcu Arthur Gessler

Evapotranspiration is a major component of the water cycle, yet only daytime transpiration is currently considered in Earth system and agricultural sciences. This contrasts with physiological studies where 25% or more of water losses have been reported to occur occurring overnight at leaf and plant scales. This gap probably arose from limitations in techniques to measure nocturnal water fluxes ...

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