Semis

Abstract: Determination de l'influence des modalites de la fertilisation azotee (dates, doses) et de la date de semis sur le mode d'accumulation de l'azote pour le mais irrigue cultive sur un sol limono-argileux profond

Abstract: Winter wheat (Triticum aestivum L.) in southern Alberta on the Canadian Prairies has traditionally been grown on bare fallow. Recently, the improved winterhardy cultivar Norstar and improved management recommendations, such as seeding directly into stubble or into chemical fallow, have encouraged producers to adapt this crop to the colder climate of southern Saskatchewan. The objective of the experiments reported herein was to determine if the optimum time for seeding winter wheat on stubble and chemical fallow differed from that recommended for seeding on conventional fallow in southern Alberta (...)

Abstract: The effect of row spacing and seeding rate on the yield of Brassica campestris L. and B. napus L. was studied for 2 yr in northwest Alberta. Rows were spaced 7.5, 15 and 23 cm apart with seeding rates of 7 and 14 kg/ha at each spacing. Decreasing row spacing from 23 cm to 15 cm and from 15 cm to 7.5 cm increased yields by an average 11% and 33%, respectively. Seeding rate had no significant effect on yield.Key words: Rapeseed, row spacing, seeding rate, yield