نتایج جستجو برای: crop growth simulation

تعداد نتایج: 1412683  

2000
Jane Southworth M. Habeck O. C. Doering

Any change in climate will have implications for climate-sensitive systems such as agriculture, forestry, and some other natural resources. With respect to agriculture, changes in solar radiation, temperature, and precipitation will produce changes in crop yields, crop mix, cropping systems, scheduling of field operations, grain moisture content at harvest, and hence, on the economics of agricu...

Journal: :Remote Sensing 2016
Zhiqiang Cheng Jihua Meng Yiming Wang

Field crop yield prediction is crucial to grain storage, agricultural field management, and national agricultural decision-making. Currently, crop models are widely used for crop yield prediction. However, they are hampered by the uncertainty or similarity of input parameters when extrapolated to field scale. Data assimilation methods that combine crop models and remote sensing are the most eff...

2007
W. S. Monfort J. Desaeger K. Seebold T. M. Webster J. C. Diaz-Perez

Multiple Brassica species commonly grown in Georgia were evaluated as a potential alternative to methyl bromide for management of root-knot nematode in vegetables. Brassica species produce general biocides called glucosinolates and were grown as cover crops and incorporated as green manures prior to transplanting of vegetable crop. Nematicidal activity of the Brassica species was based on net c...

2014
Andrew Juan Challinor Tim Wheeler Debbie Hemming H. D. Upadhyaya

Estimates of the response of crops to climate change rarely quantify the uncertainty inherent in the simulation of both climate and crops. We present a crop simulation ensemble for a location in India, perturbing the response of both crop and climate under both baseline (12 720 simulations) and doubled-CO2 (171 720 simulations) climates. Some simulations used parameter values representing genot...

2009
K. R. Manjunath Sushma Panigrahy

Rice is one of the key food grains linked to the food security of the growing population of the world. India has largest rice area in the world and stands second in production. The rice crop is important both from the food security and climate change point of view. The present paper highlights rice-growing pattern in India derived using satellite remote sensing and Geographic Information System...

This paper presents both, the design and the development of a monitoring and control system via web for a closed microalgae crop and the results that were gotten using the strain Haematococcus pluvialis. The research was done at Sabana University (Colombia) and it aims to quantify the kinetic growth associated to the increment of biomass and the development of red pigment inside the cells when ...

2012
Matthew Chappell Gary Knox Robert H. Stamps

tion and fertilization rates create a favorable environment for weed growth in addition to crop growth. Weeds can quickly out-compete the crop for light and other resources, reducing the rate and amount of crop growth as well as salability (Berchielli-Robertson et al., 1990; Norcini and Stamps, 1992). Weed management in nursery production is most effectively achieved by preventative practices, ...

Journal: :Genetics 2009
Karine Chenu Scott C Chapman François Tardieu Greg McLean Claude Welcker Graeme L Hammer

Under drought, substantial genotype-environment (G x E) interactions impede breeding progress for yield. Identifying genetic controls associated with yield response is confounded by poor genetic correlations across testing environments. Part of this problem is related to our inability to account for the interplay of genetic controls, physiological traits, and environmental conditions throughout...

2000
C. K. Ong

This paper describes a multi-disciplinary project to examine the changing interactions between trees and crops as the trees in semi-arid agroforestry systems establish and mature; the project is one of the most detailed and highly instrumented long-term studies of tree and crop growth, system performance, resource capture, hydrology and microclimate ever carried out within an agroforestry conte...

ژورنال: علوم آب و خاک 2016
زندپارسا, شاهرخ, سپاس‌خواه, علیرضا, مهبد, مهدی, پرویزی, سعیده,

In agricultural development many factors such as weather conditions, soil, fertilizer, irrigation timing and amount are involved that are necessary to be considered by the plant growth simulation models. Therefore, in this study, the values of soil water content at different depths of soil profile, dry matter production and grain yield of winter wheat were simulated using AquaCrop and WSM model...

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