Komposisi kompos seresah Kebun Raya Purwodadi dan pengaruhnya terhadap produktivitas bayam hijau dan bayam merah

Treatment of compost on vegetable crops are very important to provide nutrients that plants need, because vegetables need a lot of organic nutrients to thrive and safe for human consumption. Purwodadi Botanic Garden have potential as a producer of high litter so it can be used to make compost varying quality. This research was conducted by selecting several vak in Purwodadi botanical gardens that produce a lot of litter with litter composition of different plant species, then each of the six chosen composted and tested on two types of plant spinach, green and red. Control used were compost are bought and sold in market that comes from compost unit UB. Each treatment was repeated 3 times and results recorded are the weight of wet and dry weight of spinach plants. Data processed statistically with one-way ANOVA method. The results that the root fresh weight of green spinach are significantly different results only in the treatment of compost from the vak VII (the smallest average was 1.01 g) of compost from vak XXV and control. Stem fresh weight of green spinach are significantly different results only in the compost from vak VII (the smallest average of 9.33 g) of compost from the vak XXV and control. Leaf fresh weight and dry weight of stems, roots and leaves of green spinach there is no real difference between all treatments. Wet weight of red spinach leaves are significantly different results only in the compost treatment from vak VII and from vak XX (the smallest average of 1.05 g and 0.53 g) of compost from the vak XXV and control. Red spinach leaf dry weight are significantly different results only in the compost treatment from vak XX and from vak VII (the smallest average of 07 g and 0.08 g) of compost from the vak XXV and control.