نتایج جستجو برای: crop rotation

تعداد نتایج: 137707  

2002

This publication is written for those looking for a way out of the high risk, long hours, low pay, poor prices, and dim future associated with conventional cash crop production. There are viable alternatives to continuing in the cash crop business for those who can adjust their thinking. Finding alternatives to commodity crop production is the focus of this publication. Certain principles provi...

2007
S. A. Saseendran L. Ma R. Malone P. Heilman L. R. Ahuja R. S. Kanwar D. L. Karlen G. Hoogenboom

The objective of this study was to explore if more crop-specific plant growth modules can improve simulations of crop yields, and N in tile flow under different management practices compared with a generic plant growth module. We calibrated and evaluated the Root Zone Water Quality Model (RZWQM) with the Decision Support for Agrotechnology Transfer (DSSAT v3.5) plant growth modules (RZWQM–DSSAT...

2002

This publication is written for those looking for a way out of the high risk, long hours, low pay, poor prices, and dim future associated with conventional cash crop production. There are viable alternatives to continuing in the cash crop business for those who can adjust their thinking. Finding alternatives to commodity crop production is the focus of this publication. Certain principles provi...

Journal: :Journal of nematology 2000
W T Crow D P Weingartner D W Dickson

Belonolaimus longicaudatus has been reported as damaging both potato (Solanum tuberosum) and cotton (Gossypium hirsutum). These crops are not normally grown in cropping systems together in areas where the soil is infested with B. longicaudatus. During the 1990s cotton was grown in a potato production region that was a suitable habitat for B. longicaudatus. It was not known how integrating the p...

2011
Khosro Mohammadi Amir Ghalavand Majid Aghaalikhani Gholamreza Heidari Behzad Shahmoradi Yousef Sohrabi

Cropping systems in farmland areas of Iran are characterized by continuous cultivation of crops with consumption of chemical fertilizers leading to serious soil erosion and fertility decline. Information regarding the simultaneous evaluation of crop rotation and fertilization on the canola traits is not available. Therefore, an experiment was conducted during 2007 2010. Experimental designs wer...

2001
F. C. Stevenson J. D. Knight O. Wendroth C. van Kessel D. R. Nielsen

Landscape-scale variation is a source of information that increasingly is being taken into consideration in agricultural and environmental studies. Models that encompass and interpret this variation in ®elds and across contrasting management practices have the potential to improve the landscape management of agroecosystems. Our objective was to compare the results of two approaches, analysis of...

2007
Richard G. Smith Fabian D. Menalled

Year to year variation in yield is an inherent risk associated with crop production and many growers rely on intensive mechanical or chemical inputs to preserve crop yield in the face of fluctuating environmental conditions. However, as interest grows in alternative crop management systems which depend less on external inputs, determining the degree to which management systems can impact the te...

Journal: :Applied Studies in Agribusiness and Commerce 2009

Journal: :South African Journal of Plant and Soil 2005

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