The Response of Applying Cow Manure Compost and Coconut Coir Biochar to The Growth and Production of Shallots (Allium ascalonicum L)

Abstract

This study used a factorial randomized block design (RAK) with two treatment factors, namely (1) the factor of giving cow dung compost (P) which consisted of 4 levels, namely P0 = no treatment (control); P1= 20 tons/ha (200 g/plot); P2= 30 tons/ha (300g/plot); P3=40 tons/ha (400 g/plot). (2) the factor of giving coconut coir biochar (B) which consists of 4 levels, namely B0 = without treatment (control); B1 = giving coconut coir biochar 250 grams/plot; B2= 500 gram/plot of coconut coir biochar; B3 = giving coconut coir biochar 750 grams/plot. Each treatment was repeated 2 (two) times. The parameters observed in this study were: plant height (cm), number of leaves (strands), number of tubers, tuber diameter, wet tuber weight per sample, wet tuber weight per plot, tuber wind dry weight per sample, tuber wind dry weight. per plot. The results obtained from this study, namely: (1) giving cow dung compost in P3 treatment significantly increased plant height, number of leaves per clump, number of tubers, tuber diameter, wet tuber weight per sample, wet tuber weight per plot, wind dry weight. bulbs per sample, and bulb dry weight per plot of shallot (Allium ascalonicum L); (2) the application of coco coir biochar in the B3 treatment significantly affected plant height, number of leaves, number of tubers, tuber diameter, wet tuber weight per sample, wet tuber weight per plot, tuber wind dry weight per sample, and tuber wind dry weight per plot. onion plant (Allium ascalonicum L); (3) there was no significant interaction between cow dung compost and coconut coir biochar on the growth and production of shallot (Allium ascalonicum L).