BC2 FRONT COVER REV4.indd
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چکیده
Abbreviations and Notes: N = nitrogen; P = phosphorus; K = potassium; Ca = calcium; Fe = iron; Si = silicon. The Origins of Biodynamic Agriculture Biodynamics is system of agricultural management based on a series of lectures given by Rudolf Steiner in 1924. A philosopher by training, Steiner sought to infl uence organic life on earth through cosmic and terrestrial forces via nine preparations (see list on next page) that would stimulate vitalizing and harmonizing processes in the soil. Unfortunately, he gave no rationale for most of these processes. In the past decades, biodynamic agriculture has evolved to include many current farming practices (such as crop rotation and cover cropping), which have benefi ts on soil and crop production. Steiner’s original teachings did not include these methodologies.
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BC4 FRONT COVER REV1.indd
B et te r C ro ps /V ol . 9 7 (2 01 3, N o. 4 ) Silicon is a major component of sand, silt and clay minerals. Because of this abundance, it typically has not been considered as a limiting factor in soil fertility. However numerous fi eld studies have shown that supplying crops with adequate plant-available Si can suppress plant disease, reduce insect attack, improve environmental stress toleran...
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East Africa highland banana (Musa spp., AAA-EAHB) or ‘matooke’ is a major staple crop grown for food and sale by smallholder farmers in Uganda. Banana yields in farmers’ fi elds average 15 t/ha fresh weight (FW), and have remained small compared with yields of 60 to 70 t/ha/yr achieved at a research station with fertilizer application (Tushemereirwe et al., 2001; Smithson et al., 2001). Low ban...
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