ISHS Acta Horticulturae 187: I International Symposium on Mechanization of Vegetable Production
TRANSPLANTING SYSTEMS |
| Authors: | K.-H. Kromer, A. Struzina |
| Abstract:
Transplanting instead of direct seeding in the field allows reduced tillage, shortened vegetation period, uniform crop and less plant losses caused by fungis, nematodes etc.. This results in a higher crop quality, yield and return. The present disadvantages however are high propagation costs (greenhouse, energy, substrate, labor) and labor requirement for transplanting. The cost structure depends basicly on the germination datas, the substrate used per plant, the greenhouse systems and the degree of mechanization in propagation and transplanting. Many new systems are developed, causing uncertainty in the nomenclature. The paper is overviewing the present systems and offering a cost calculation nomogramme. The propagation plants density varies from 400 to 4400 plants per sqm and therefore the required greenhouse area from 0.6 to 3.2 sqm per 1000 plants, effected by the germination rate. The paper gives the ranges of the cost relevant datas and discusses the proposal of a new nomenclature. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
