Describes the techniques and fundamental concepts underlying the production and marketing of vegetable crops, particularly those crops that contribute to the commercial vitality of the vegetable industry in the western hemisphere. Covers resources -- natural, biological and economic -- that are fundamental to successful crop production, as well as the vegetable management systems that integrate these resources. Also includes specific information on each of the major vegetable crops, such as history, botanical characteristics, production techniques, pests, harvesting, and marketing. In addition, it provides discussions of social conflicts and problems that arise from water and land use practices, pesticide application, and conservation.
Arnold , G. W. , Campbell , N. A. , and Galbraith , K. A. , Mathematical relationships and computer routines for a model of food ... Butterworth , M. H. and Diaz , L. , Use of equations to predict the nutritive value of tropical grasses ...
本书从美术史的研究视野出发,着眼于辽金时期的考古发现、传世文物与文献史籍,考察探讨辽金皇家艺术工程中所呈现出的艺术史要素,关照多种艺术语言和视觉综合体的内在逻辑 ...
These counties were Huang Cheng County , which is in the area east of the Yellow River and which grows mainly coarse wool , and Sandan County which produces both fine wool and coarse wool . ( Huang Cheng is also the name of ...
In concurrence with other authors ( Carter & McGoldrick , 1989 ; Hartman & Laird , 1983 ; McDaniel et al . , 1990 ) , we define family as two or more people related or connected biologically , emotionally , or legally .
1 Maconochie ]R Madgwick ]C Madsen NP Mahendra K] Mahon R] Mak KP Manchanda AH Mander LN Mander STK Marasas WFO ... A1 Maunwongyathi P Mazza SM McAdam D McAlpine ]B McBride T] McCall M] McCamish M McChesney MM McClure T] McCredie RS ...
( 1990 ) exposed three cultivars of cucumber ( Cucumis sativus ) to a daily dose of 11.6 k / m biologically effective UV - B radiation in an unshaded greenhouse before and / or after inoculation with Colletotrichum laginarium ...
ENVIRONMENTAL CONTROL OF BIRDS Keith A. Arnold INTRODUCTION Problems arise between bird and human populations for three reasons : economics , health hazards , and nuisances . Bird populations are competing with humans for resources and ...
... park , the athletic grounds , the skating rink , the co - operative creamery , the cheese factory , the bakery and the like . Most importantly , though , the size of the administrative unit had to be enlarged through consolidation .
... by Booher in an FAO publication . Sprinklers simulate rainfall by spraying water from pipes under pressure . Localized irrigation applies water at or near the plant at a rate which is far less than the soil infiltration rate .
Fitzgerald , C.H. ( 1975 ) Early root development and anatomical parasite - host relationships of black senna with slash pine . Forest Science 21 , 239-242 . Fitzgerald , C.H. and Terrell , S. ( 1975 ) Control of Seymeria cassioides ...