نتایج جستجو برای: field crops

تعداد نتایج: 819875  

Journal: :تولید گیاهان زراعی 0

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2014
Anita Singh Amarjit Lal Sharma

The field investigation during 2013-14 at Talwandi sabo, Punjab revealed that there are 19 insect pests identified from kharif crops whereas 13 insect pests were recorded from rabi crops. The 5 bio control agents and 2 ant species were recorded from agriculture field. In these Hemiptera and Lepidoptera are having maximum number of insect pests causing major damage to both kharif and rabi crops....

C.A. Srinivasamurthy G. Sridevi, U. Surendran

The introduction of ecological sanitation (ECOSAN) toilets in villages near Bangalore hascreated opportunities for safer sanitation and recycling of human excreta, as fertilizers, in ruraland peri-urban areas. Field experiments were conducted at the University farm on French beansand Maize as the test crops in succession for 2 consecutive years in the same field. Differenttreatment combinations...

1999
Harbans L. Bhardwaj Anwar A. Hamama

The New Crops Program of Virginia State University, established in 1991, has evaluated the production feasibility of a wide array of leguminous crops including chickpea, faba bean, mungbean, and pigeonpea under Virginia’s agro-climatic conditions (Bhardwaj et al. 1996). Such crops could provide alternatives to farmers in Virginia and adjoining Mid-Atlantic States. These farmers, in general, rel...

Journal: :Journal of economic entomology 2009
Bruce E Tabashnik J B J Van Rensburg Yves Carrière

Transgenic crops producing Bacillus thuringiensis (Bt) toxins for insect pest control have been successful, but their efficacy is reduced when pests evolve resistance. Here we review the definition of field-evolved resistance, the relationship between resistance and field control problems, the theory underlying strategies for delaying resistance, and resistance monitoring methods. We also analy...

2014
M.P.D. Garratt D.J. Coston C.L. Truslove M.G. Lappage C. Polce R. Dean J.C. Biesmeijer S.G. Potts

Insect pollinated mass flowering crops are becoming more widespread and there is a need to understand which insects are primarily responsible for the pollination of these crops so conservation measures can be appropriately targeted in the face of pollinator declines. This study used field surveys in conjunction with cage manipulations to identify the relative contributions of different pollinat...

2010
Catherine P. D. Borger Abul Hashem Shahab Pathan

Crop rows oriented at a right angle to sunlight direction (i.e., east–west within the winter cropping system in Western Australia) may suppress weed growth through greater shading of weeds in the interrow spaces. This was investigated in the districts of Merredin and Beverley, Western Australian (latitudes of 31u and 32uS) from 2002 to 2005 (four trials). Winter grain crops (wheat, barley, cano...

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