抄録
Effect of mulching, one of the basic problem of Yacon cultivation, were investigated.
Three experimental plots were designed: 1) poly-mulch plot; Black polyethylene film 0.02mm thick was mulcheyd, 2) Straw mulch plot; straw was mulched and 3) no mulch plot.
The resuts obtained were as follows:
1. The top fresh weight in no mulch plot was the heaviest.
2. Total number of the tuberous roots increased in the poly-mulch plot, but the number of tuberous roots over 100g per root decreased.
3. Total weight of tuberous roots and the total weight of tuberous roots over 100g per root increased in the straw mulch plot.
4. Total numbers of creacked tuberous roots increased in the poly-mulch plot.
5. Straw mulching resulted in high tuberous roots yield, but yield under black polyethlyene film mulching was poor.
