نتایج جستجو برای: agroecosystem

تعداد نتایج: 1037  

2003
Mark A. Liebig Gary E. Varvel

tices on agroecosystem functions is necessary to determine the sustainability of cropping systems. Agricultural sustainability is enhanced by management practices Performance-based indices have been used to assess that optimize the performance of multiple agroecosystem functions. the effects of management practices on agroecosystem The performance of western Corn Belt cropping systems was evalu...

Journal: :journal of agricultural science and technology 2015
s. kumar

a two-year field study was conducted at punjab agricultural university, ludhiana, india, to study the relative abundance of mustard/turnip aphid, lipaphis erysimi (kaltenbach) (hemiptera: aphididae) and the associated resident natural enemies on 10 different rapeseed-mustard genotypes which included: brassica juncea: rh 7846, rh 9501, rk 9501, jmm 927, purple mutant; b. napus: hyola pac 401 (hy...

2010

In order to increase in chickpea quality and agroecosystem sustainability, field experiments were carried out in 2007 and 2008 growing seasons. In this research the effects of different organic, chemical and biological fertilizers were investigated on grain yield and quality of chickpea. Experimental units were arranged in split-split plots based on randomized complete blocks with three replica...

Journal: :Neotropical entomology 2010
Carlos E S Bezerra Patrícia K A Tavares Luciano P M Macedo Sérgio de Freitas Elton L Araujo

A survey of the green lacewings associated with the melon agroecosystem was carried out with the aim of including lacewings into the integrated management program of melon pests. Three species of this predator were found: Ceraeochrysa cubana (Hagen), Chrysoperla externa (Hagen) and Chrysoperla genanigra Freitas. A key to these species is presented.

2010
Carolyn E. Smith Maren Oelbermann

Current agroecosystem management practices in tropical latitudes may not be an economically feasible and an effective long-term adaptation strategy to climate change. As such, implementing, improving and refining sustainable land management practices may be a more effective adaptation strategy. This study determined the perception and knowledge of climate change by landowners in a remote Costa ...

2017
Charlotte Poeydebat Philippe Tixier Luc De Lapeyre De Bellaire Dominique Carval

The data presented in this article are related to the research article entitled "Plant richness enhances banana weevil regulation in a tropical agroecosystem by affecting a multitrophic food web " [1]. It provides information about plant species richness, weevil corm damage and the abundance of different arthropod groups, including the banana weevil and its potential natural enemies and alterna...

Journal: :Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 2014

2012
Rodolphe Sabatier Luc Doyen Muriel Tichit

Effects of agri-environment schemes (AES) on biodiversity remain controversial. While most AES are action-oriented, result-oriented and habitat-oriented schemes have recently been proposed as a solution to improve AES efficiency. The objective of this study was to compare action-oriented, habitat-oriented and result-oriented schemes in terms of ecological and productive performance as well as i...

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