Abstract
This research studied the effect of Ca-artificial zeolites obtained from industrial waste on growth and nutrient uptake in rockwool culture of muskmelons. Examination was carried out for the addition of Ca-artificial zeolite to the rockwool slab and the application of concentrated nutrient solution at pollination stage of the melons. Nutrient solution high and low in terms of concentration were prepared with and without addition of Ca-artificial zeolite 1 (100g-300g).The result showed that uptake rate of mineral element by the muskmelons were increase with increasing in the addition of the zeolite. The results of this research show that fresh weight, plant height and fruit fresh weight of muskmelons cultivated with of 100g Ca-artificial zeolite in rockwool slab (20cmW×91cmL×7.5cmH) were greater than those of others.
The uptake rate of mineral element gradually rose before pollination, then remarkably increased immediately after pollination. The increased uptake rate of mineral element was observed for about C-D stage, followed by a sudden decrease in the degree to the levels before pollination.
