Interaction of Fertilization and Weed Control Influences on Growth, Biomass, and Carbon in Eucalyptus Hybrid (E. pellita × E. brassiana)

Abstract

Fertilization and weed control are regularly conducted as the main silvicultural prescriptions in the eucalyptus plantation. However, the both treatment's interaction effects on eucalyptus performance are still not deeply understood, even though these treatments require high investment. This circumstance may potentially inhibit the managers in formulating a more efficient maintenance strategy for increasing stand productivity. This study examined the interaction effects of fertilization and weed control on growth, biomass, and carbon storage in eucalyptus hybrid (E. pellita E. brassiana). Results demonstrated that without both treatments, the average stand 3-1-1 volume only reached 37.9 m ha with the mean biomass and carbon storage approached 25.4 and 12.7 Mg ha , 3-1 respectively. In contrast, the use of both treatments simultaneously improved the mean volume around 60.4 m ha-1 with the average biomass and carbon storage closed to 37.6 and 18.8 Mg ha. The development of eucalyptus hybrid 3-1 using fertilization without weed control only gained the mean wood production approximately 58.7 m ha. In 3-1 contrast, weed control application without fertilization only resulted in an average volume of nearly 43.7 m ha. These facts indicated fertilization exhibited more substantial influence than weed control on the performance of eucalyptus hybrid.

Soil chemical properties influences on the growth performance of Eucalyptus urophylla planted in dryland ecosystems, East Nusa Tenggara

“…Among those soil parameters, Av-P demonstrated a significant effect on all stand attributes of eucalypts. It indicated that the eucalypts species in this site is very responsive to the availability of phosphorus in soil (Crous et al, 2015;Tng et al, 2014;Wirabuana et al, 2020). Many references also confirmed that phosphorus is the primary nutrient needed by eucalyptus (Amezquita et al, 2018;Bassaco et al, 2018;Wirabuana et al, 2019), especially in acid soil with low availability of phosphorus (Wang et al, 2015).…”

“…Many references also confirmed that phosphorus is the primary nutrient needed by eucalyptus (Amezquita et al, 2018;Bassaco et al, 2018;Wirabuana et al, 2019), especially in acid soil with low availability of phosphorus (Wang et al, 2015). Several previous studies in other locations also documented that the practice of phosphate fertilizer provides a positive effect on the eucalypts productivity (Gotore et al, 2014;Melo et al, 2016;Wirabuana et al, 2020). However, even though most eucalypts species highly require phosphorus, the excessive amount of phosphorus in soil can hider the plant growth.…”

EARLY GROWTH OF JABON (Anthocephalus cadamba Miq) IN A DRAINED PEATLAND OF PELALAWAN, RIAU

“…The serious weed-suppressing survival and growth in the period of 1-2 years indicated that weed control (weeding) is still needed at least two years for jabon plantation in DP. This weeding control (till two years) in rubber tree and Eucalyptus hybrid has a positive effect on the growth, thus being used in jabon plantation (Guzzo, De Carvalho, Giancotti Alves, Gonçalves, & Martins, 2014;Wirabuana, Sadono, Juniarso, & Idris, 2020). The negative effect or toxicity of the excessive Al, Fe and Mn on survival and growth rates of jabon in DP indicated that certain treatments are needed to overcome this serious problem.…”

The growth, aboveground biomass, crown development, and leaf characteristics of three Eucalyptus species at initial stage of planting in Jepara, Indonesia

“…In several decades, there are a number of fast-growing tree species developed as plantation forests in the tropics, one of which is eucalyptus. The development of eucalyptus as a major species in plantation forests has been widely conducted in many tropical countries, such as Brazil, Chile, Colombia, Mexico, Thailand, Vietnam, and Indonesia (Aggangan et al 2013;Hakamada et al 2017;Acuña et al 2018;Amezquita et al 2018;Van Bich et al 2019;Wirabuana et al 2020a). Besides having a short rotation period of approximately 5-8 years (Little et al 2018), the quality of eucalyptus wood suits the requirements of industries, such as for construction materials, pulp and paper, plywood, veneer, and furniture (Forrester 2013;Hii et al 2017;Nambiar et al 2018).…”

“…A preliminary evaluation was undertaken to monitor the growth, aboveground biomass, crown development, and leaf characteristics of those three species at six months after planting. It is a critical period to assess the suitability of species to survive in the site condition (Van Bich et al 2019;Stuepp et al 2020;Wirabuana et al 2020a) since every eucalyptus species has a habitat preference to support its growth and development. If site condition is not suitable, the species will demonstrate a high mortality rate and low growth performance (Thompson 2013;Maimunah et al 2018;Aguilos et al 2020).…”