Estimation of yield losses caused by defoliators in sunflower
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منابع مشابه
Quantification of avoidable yield losses in oilseed Brassica caused by insect pests
A six year field study was conducted from 2001–2002 to 2006–2007 at Punjab Agricultural University, Ludhiana, India to study the losses in seed yield of different Brassica species (B. juncea, B. napus, B. carinata, B. rapa and Eruca sativa) by the infestation of insect pests. The experiment was conducted in two different sets viz. protected/sprayed and unprotected, in a randomized block design,...
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The assessment of crop yield losses is needed for the improvement of production systems that contribute to the incomes of rural families and food security worldwide. However, efforts to quantify yield losses and identify their causes are still limited, especially for perennial crops. Our objectives were to quantify primary yield losses (incurred in the current year of production) and secondary ...
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ژورنال
عنوان ژورنال: AGRICULTURE UPDATE
سال: 2017
ISSN: 0973-1520,0976-6847
DOI: 10.15740/has/au/12.techsear(1)2017/54-57