Spring rape seed yield and quality as affected by the cultivation year and cropping system
Within a clover- winter wheat- spring oilseed rape (Brassica napus L.) cv. Maskot-barley+clover rotation, the effects of cropping systems (control, organic, sustainable, intensive with the respective mineral fertilisation N0P0K0, N0P0K75, N80P40K90, and N120P60K140) on the rape seed, crude fat (CF), crude protein (CP) yield, CF and CP concentrations are discussed in the present paper. The field experiments were carried out during the seasons 2001-2005 on an Endocalcari-Epihypogleyic Cambisol. The harvest years differed significantly in meteorological conditions: from favourable for plants to uptake nutrients to extremely droughty, sunny and hot, and the effect of the cultivation year was significant at P<0.01 for the seed yield and its quality.Depending on the cultivation year the average seed yield varied within the range 1.5-2.4 t ha-1, CF and CP concentrations 345-407 g kg-1, 206-233 g kg-1 respectively, with a variation each year resulting from the cropping system. Depending on the cropping system the average seed yield harvested in the trial plots during the 5 experimental years ranged in the following order: control ≤organic<sustainable<intensive. The highest average CF concentrration was from the control plots (409 g kg-1 adjusted to 9 % moisture), and the lowest from the plots of intensive cropping system (383 g kg-1), and conversely, CP concentration was the lowest in the seed harvested in the control plots (207 g kg-1 adjusted to 9 % moisture).
spring oilseed rape cropping systems seed yield crude fat crude protein
Bronislava Butkute Sarunas Antanaitis Vytas Masauskas
Chemical Research Laboratory, Lithuanian Institute of Agriculture (LIA), Akademija, Kedainiai distr. Department of Plant Nutrition and Agroecology of LIA Akademija, Kedainiai distr.58344 Lithuania
国际会议
第十二届国际油菜大会( The 12th International Rapeseed Congress)
武汉
英文
1182-1185
2007-03-26(万方平台首次上网日期,不代表论文的发表时间)