Abstract
Maize roots will show varying growth responses to the type of fertilizer given. The objective of this study was to determine the effect of N, P, and K fertilizers on the growth of maize roots and the function of the relationship between root dry weight and shoot dry weight of maize under rizhotron. The research was conducted in April - June 2019 at the screen house and Plant Laboratory, Politeknik Lamandau in Lamandau Regency. The research was conducted in rizhotron's growth medium which was arranged in a completely randomized design (CRD) with a fertilizer treatment consisting of urea (N = 200 kg ha-1), SP36 (P = 100 kg ha-1), KCl (K = 100 kg ha-1), and control (without fertilizer) with three replications. The results showed that N fertilizer was able to provide better root dry weight growth compared to P and K fertilizer, namely 2.59 g. Root dry weight has a significant effect on plant dry weight gain based on the function of y = 4.10x + 0.06 (R2 = 0.96 **).
Highlights
Maize roots will show varying growth responses to the type of fertilizer given
The objective of this study was to determine the effect of N, P, and K fertilizers on the growth of maize roots and the function of the relationship between root dry weight and shoot dry weight of maize under rizhotron
The research was conducted in rizhotron's growth medium which was arranged in a completely randomized design (CRD) with a fertilizer treatment consisting of urea (N = 200 kg ha-1), SP36 (P = 100 kg ha-1), KCl (K = 100 kg ha-1), and control with three replications
Summary
Departement of Plantation Production Technology, Politeknik Lamandau, Lamandau, Indonesia. It can be used to visualize the root system (root system architecture and root growth dynamics) of various plant species grown in rhizotrons based on the treatments tested (Agustina et al, 2010; Huck & Taylor, 1982) For this reason, it is necessary to study root growth patterns at different fertilizers to be able to support better plant growth and development, so that objective of the study was to determine the effect of nutrients N, P, and K on the root growth of maize under rhizotron and function of the relationship between root dry weight and shoot dry weight of maize. The results of the variance showed that the type of fertilizer treatment had a significant number of primary roots and the surface area of maize roots (Table 1). The same root length growth in this study was thought to be due to the factor of root lengthening in maize being inhibited by rhizotron media which limited root elongation
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