| By pot experiment, fertilizer efficiency of different kinds of ecological breeding padding was compared. The
results showed that after application of different kinds of ecological breeding padding, content of soil organic matter (SOM),
available nitrogen, available phosphorus, available potassium and activities of acid phosphatase, catalase, proteinase
significantly increased, plant height and biomass of lettuce increased by 32.05%~48.78% and 32.97%~92.56% respectively
compared with control treatment (CK). Meanwhile, after application of different kinds of ecological breeding padding, the
quality of lettuce significantly enhanced, the content of vitamin C (VC) and soluble protein increased by 2.7~5.93 times and
23.64%~46.67%, respectively. Different kinds of ecological breeding padding had different effects on lettuce, ecological
chicken and duck breeding padding with high nutrient content had the maximal yield-improving effects, ecological pig
breeding padding had better effect on SOM. At the same time, nutrient utilization rate of padding that had shorter hours of
use was higher. |
