to study the effects of used water in evapotranspiration, seed number per unit area and leaf relative water content on seed weight of canola (brassica napus l.), an experiment was conducted as a randomized complete block design, arranged in a split-plot under two conditions, i.e. supplemental irrigation and rainfed in 2005-7. two cultivars of canola (‘hyola401’ and ‘rgs003’) as subplots were gr...

Allelopathic effects of plant residues is an important research avenue regarding optimization of rotation systems in agronomy. The aim of this study was to investigate the allelopathic effects of four plant residues, namely, black cumin, dragonhead, dill, and soybean on the germination and growth of wheat (Triticum aestivum) in different cropping systems. Results showed that applicatio...

this study was conducted under cold temperate climate condition in khorasan during 2006-2008 growing seasons to determine the suitable wheat-based double cropping systems for increase nitrogen agronomic efficiency. a randomized complete block design in split-split plot arrangement with three replicates was used. main plots were crop rotation with five different rotations including wheat:wheat, ...

the present study was carried out to investigate the replacement of soybean meal by different levels of canola meal (either with or without canola meal undergoing heat processing). two hundred forty commercial layer hens (lsl strain) at 54th week of age, selected based on the same egg production percentage and body weight. the experimental design was a crd, in a factorial arrangement of 4 repli...

No-till cropping is an option for growers needing to reduce soil erosion in the Palouse annual-cropped region of the Pacific Northwest, which is well suited for wheat production. A 6-yr field study was conducted to determine optimum levels of fertilizer and herbicide inputs in a no-till continuous wheat crop production system. Three levels of nitrogen (N) and two weed management levels (WML) we...

INTRODUCTION The grain industry (mainly maize and wheat) is the largest crop industry in South Africa under rain-fed conditions. Significant changes have taken place since deregulation in agriculture and the termination of subsidies from mid 1990s. The total area under grain has decreased by about 10% to 15% (C. Du Plessis, pers. commun. 2001) due to lower prices (based on import parity and fre...

Canada is the world’s largest producer of canola and the trend of production is ever increasing with an annual growth rate of 9.38% according to FAOSTAT [1]. In 2017, canola acreage surpassed wheat in Saskatchewan, the highest producer of both crops in Canada. Country-wide, the total farming area of canola increased by 9.9% to 22.4 million acres while wheat area saw a slight decline to 23.3 mil...