The Effect of Coffee-husk Biochar and Vermicompost Mixing on Crop Productivity Cabbage: The mixed organic fertilizer between coffee husk biochar and vermicompost has an influence on the growth and yield of vegetables ...

Phonesouk KHAYONGEK; Phoudthasone SYSOUVANH; Nakhaline PHOUNSAVATH; Orlalin APHAYLATH; Daochay XAYYAVONG

Authors

Phonesouk KHAYONGEK Agronomy Division, Faculty Of Agriculture and Forestry, Champasack University
Phoudthasone SYSOUVANH Faculty of Agriculture, National University of Laos
Nakhaline PHOUNSAVATH Agronomy Division, Faculty of Agriculture and Forestry, Champasack University
Orlalin APHAYLATH Agronomy Division, Faculty of Agriculture and Forestry, Champasack University
Daochay XAYYAVONG Agronomy Division, Faculty of Agriculture and Forestry, Champasack University

Keywords:

Coffee husk biochar, Vermicompost, Cabbage and Tomato

Abstract

The mixed organic fertilizer between coffee husk biochar and vermicompost has an influence on the growth and yield of vegetables (cabbage and tomato) as shown by the different elements of the experiment conducted according to the Randomized Completely Block Design (RCBD) by 5 levels of mixture ratio (100:00; 75:25; 50:50; 25:750 and 00:100) which presented the result of the effect of coffee husk biochar and vermicompost mixture on the soil properties such as pH, organic matter (OM), nitrogen content (N): %N-total, NH4⁺ and NO3^-. And then, It was found that the utilization of the organic fertilizers mixture between coffee husk biochar (B) and vermicompost (V) with a ratio the mixture B: V= 75:25 (T2) was effective in increasing the amount of N higher than others mixture ratio. Moreover, the mixture ratio of B: V= 00:100 (T5) increased highly amount of NH4⁺ and amount of NO3^-. On the other hand, the mixture organic fertilizer of B: V= 75:25 (T4) and 100:00 (T1). But, the amounts of P-total and P-avialable were higher than others ratio by the application ratio of of B: V= 00:100 (T1) and the amount of K-avialable increases by ratio of B: V= 100:00 (T1) that had a higher amount of K than others organic fertilizer. Mg⁺² had increased by using organic fertilizer mixture ratio of B:V= 00:100 (T5), and K⁺ by ratio of B: V= 100:00 (T1) compared to the amount components of the substances properties in the soil before planting and Na⁺ compared to the soil before planting, it was quite semilar amont contents slightly. Significantly, the mixture organic fertilizer between coffee husk biochar and vermicompost of B: V= 100:00 (T1) that could able influence cabbage grow and increased cabbage yield with hight quality more than the other mixtures, which showed that the diameter, the tuber circumference, the tuber weight, the yield per area were highly productivities in this season