ABSTRACT
SYNERGISTIC EFFECT OF TROPICAL SEAWEED BASED BIOSTIMULANT WITH HUMIC PRODUCTS ON GRAIN YIELD OF MAIZE (VAR. SYNGENTA NK-6240) FARMED UNDER SEMI-ARID REGION
Journal: Malaysian Journal of Sustainable Agriculture (MJSA)
Author: Gopi Krishna R., Shanmugam Munisamy
This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
DOI: 10.26480/mjsa.02.2024.126.132
Synergism of seaweed extract with humic acid was evaluated by in-vitro bioassay where the root development of green gram seedling was assessed by Win Rhizo root analyser. At 100ppm treatment level concentrated seaweed extract and humic acid (1:1.6 ratio) increased the total root length by 1.82 times whereas it was only 0.77 times in concentrated seaweed extract alone with same dosage level as compared to nutrient control (LANS). A field experiment in semi-arid zone on maize crop was conducted during 2021, concentrated seaweed extract (CSW) standalone and in combination with humic acid at different ratio were applied through foliar on maize at its different growth stages. Plant treated with CSW and humic acid at 1:1.6 (i.e. 0.25% + 0.4%) produced 41.93% grain yield significant (p = 0.001) increase (8570 kg/ha) followed by 37.50% by plant applied with CSW and humic acid at 1:0.8 (i.e. 0.25% + 0.20%) – 8302 kg/ha and pure seaweed extracts alone at same dosage level (0.25%) recorded 18.84% increase over control plants (6038 kg/ha). Higher stover biomass (9663 kg/ha – 32.18% increase) and improved vegetative growth of maize crop was also recorded in the present studies. Therefore, the results suggest seaweed extract may be used in conjunction with humic acid to increase the crop yield and stover of maize.
Pages | 126-132 |
Year | 2024 |
Issue | 2 |
Volume | 8 |