Crops : their characteristics and cultivation : a practical handbook /

Includes index.

Competition between soybeans and other crops in major U.S. regions /

Mode of access: Internet.

Hearing to review food aid and agriculture trade programs operated by the U.S. Department of Agriculture and the U.S. Agency for International Development : hearing before the Subcommittee on Specialty Crops, Rural Development, and Foreign Agriculture of the Committee on Agriculture, House of Representatives, One Hundred Tenth Congress, first session, May 10, 2007.

"Serial no. 110-21."

Hearing to review U.S. Department of Agriculture Rural Development programs and the agency's rural development proposals for the 2007 farm bill : hearing before the Subcommittee on Specialty Crops, Rural Development, and Foreign Agriculture of the Committee on Agriculture, House of Representatives, One Hundred Tenth Congress, first session, March 21, 2007.

"Serial no. 110-6."

Seed crops of forest trees in the pine region of California /

Caption title.

Floriculture crops.

Some v. distributed to some depository libraries in microfiche, <1986-1998>

Cereal grains, oilseeds and other field crops; handbook and digest

Includes bibliography.

The feeding of crops and stock; an introduction to the science of the nutrition of plants and animals,

Mode of access: Internet.

Managing cover crops profitably.

Includes index.

California vegetable crops.

Mode of access: Internet.

Southern crops as grown and described by successful farmers,

Mode of access: Internet.

The great world's farm; some account of nature's crops and how they are grown,

2d ed.

Social Impact of Coca Crops in Colombia. : From socio-territorial processes to new social configurations: the role of land tenure, armed conflict, environment and coca crops.

This paper explores alterations in social dynamics caused by coca crops in Curvaradó and Jiguamiandó, at Choco department in the Colombian Pacific region. The research analyzes the role of armed actors such as paramilitaries and guerrillas in the conformation of new social spaces where local people find resistance as the main tool to survive in chaotic environments. Local power as a politics of resistance is also analyzed. Non-governmental organizations are a key tool to comprehend new social configurations. By doing the analysis and comparison using political ecology as the theoretical background along with concepts of moral economy and everyday resistance, with qualitative research methods. The paper aims to interpret and provide a better understanding of those changes considering social-environmental relations. Findings suggest that those changes in social structure are leading to an understanding, not just of the organization of the area, but also that social dynamics and coca crops cannot be generalized in the country. 

Elicitors of induced disease resistance in postharvest horticultural crops: a brief review

Increasing loss of conventional fungicides due to pathogen resistance and general unacceptability in terms of public and environmental risk have favoured the introduction of integrated pest management (IPM) programmes. Induction of natural disease resistance (NDR) in harvested horticultural crops using physical, biological and/or chemical elicitors has received increasing attention over recent years, it being considered a preferred strategy for disease management. This article reviews the enhancement of constitutive and inducible antifungal compounds and suppression of postharvest diseases through using elicitors. The effect of timing of pre- and/or postharvest elicitor treatment and environment on the degree of elicitation and the potential for inducing local acquired resistance, systemic acquired resistance and/or induced systemic resistance to reduce postharvest disease is discussed. The review highlights that more applied and basic research is required to understand the role that induced NDR can play in achieving practical suppression of postharvest diseases as part of an IPM approach. (C) 2003 Elsevier B.V. All rights reserved.