Biomass Productivity, Developmental Morphology, and Nutrient Removal Rate of Hybrid Napier Grass (Pennisetum purpureum x Pennisetum americanum) in Response to Potassium and Nitrogen Fertilization in a Multiple-Harvest System

Dokbua, Bhawit; Waramit, Naroon; Chaugool, Jiraporn; Thongjoo, Chaisit

doi:10.1007/s12155-020-10212-w

Cited by 7 publications

(8 citation statements)

References 48 publications

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“…These high yields of EG are very consistent with other studies conducted in Brazil on two low fertility soils, where five different EG genotypes averaged 26.3 and 20.9 Mg ha −1 without application of N fertilizer in each soil in the first 2 yr of study (de Morais et al, 2009). Other authors also reported very high EG DMYs in the first two or three experimental years, something that may be explained by the much larger N and P uptake by the species during the first 2-3 yr when compared to other perennial grasses (Dokbua et al, 2020;Ra et al, 2012). Biomass yields reported for GR and SW in our study are comparable to the GR and SW biomass yields of 22.8 and 20.9 M ha −1 reported by Palmer et al (2014) under comparable agro ecological conditions.…”

Section: Discussionmentioning

confidence: 94%

Effects of perennial biomass yield energy grasses and fertilization on soil characteristics and nutrient balances

et al. 2021

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Besides its bioenergy potential, perennial grasses can also have positive impacts on soil quality. However, responses of soil organic carbon (SOC) and total nitrogen (TN) depend on multiple factors, including grass species selection and N and P addition. We investigated the effect of four N and P fertility treatments (control = 0 kg N + 0 kg P ha -1 [N 0 P 0 ]; 100 kg N + 0 kg P ha -1 [N 1 P 0 ]; 0 kg N + 100 kg P ha -1 [N 0 P 1 ]; 100 kg N + 100 kg P ha -1 [N 1 P 1 ] applied annually] across 9 yr in Uruguay on soil nutrient balances, C and N pools, and biomass yields of elephantgrass (EG) (Pennisetum purpureum Schum.), giant reed (GR) (Arundo donax L.), and switchgrass (SW) (Panicum virgatum L.). Across years, EG had the highest biomass yield, followed by GR and SW (18.9, 16.3, and 14.1 Mg ha -1 yr -1 , respectively). Across species, aboveground biomass increased by 46% with N addition. Yield response to P fertilization was lower (+11%). Elephantgrass had the highest N and P negative balance. Soil organic C and TN concentration were affected by species but not by fertilizer treatments. Giant reed had the highest SOC content gain in the first 0-40 cm (540 kg C hayr -1 ), and was the only species maintaining TN content from the beginning of the study. Giant reed could be an excellent option as a bioenergy crop due to its high aboveground biomass production, and its positive impacts on SOC and TN pools.

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Section: Discussionmentioning

confidence: 94%

Effects of perennial biomass yield energy grasses and fertilization on soil characteristics and nutrient balances

et al. 2021

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“…Plants absorb K + from soil solution through roots. Generally, K + concentration in soil solution increases with the increase of K fertilizer application and is also concentrated or diluted by evaporation and precipitation under field conditions (Dokbua et al 2021). Within a certain range, K absorption by plants increases with the increase of K + concentration in soil, while excessive K supply reduces K absorption, as shown in this test.…”

Section: Discussionmentioning

confidence: 55%

“…Therefore, appropriate K supply in mediumand low-K soils is an effective measure to promote the growth of turfgrass, improve turf quality, and maintain a good landscape (Campbell et al 2020), for Festuca arundinacea or other turfgrass, such as Paspalum vaginatum Sw. (Du et al 2018) and bermudagrass (Cynodon dactylon (L.) Pers) (Ihtisham et al 2020). In high-K soils, studies have shown that some turfgrasses, Lolium perenne (Bian et al 2000), a creeping bentgrass (Agrostis stolonifera L.) (Bier et al 2018), and hybrid napier grass (Dokbua et al 2021) for example, do not produce a positive fertilization effect to K fertilizer application, and K fertilizer is not required.…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies have shown that the application of K fertilizer can promote the growth of turfgrass and enhance its adaptability to adversity (Wu et al 2019;Schmid et al 2018), which is beneficial to promote the turf cover and turf quality, prolong the lawn green period, and improve the ecological environment (Ihtisham et al 2018). Recent studies have shown that the effect of applying K fertilizer on the growth of turfgrass is closely related to the K level of the soil (Ihtisham et al 2020;Dokbua et al 2021). Thus, it is necessary to understand the response of turfgrass to K fertilizer and establish an optimized K fertilizer application strategy and K nutrition diagnosis technology under different soil conditions.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Potassium Fertilizer Application on Festuca arundinacea I: Plant Growth and Potassium Requirement

Huai

Zhang

et al. 2022

J Soil Sci Plant Nutr

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This study sought to clarify the effects of potassium (K) fertilizer application on the growth and K requirement of Festuca arundinacea and determine the appropriate K fertilizer application rate for its normal growth. A pot experiment was conducted to test the plant growth and K uptake of Festuca arundinacea response to different K fertilizer rates (0, 100, 200, 300, and 400 mg K2O kg−1) in two K levels (medium K and low K) of soils. Potassium fertilizer application and soil significantly affected plant growth, K uptake and K concentration in the shoot, and K uptake in the root. Low-K soil and without K fertilizer application increased the root-shoot ratio. Increasing K fertilizer application enhanced K distribution in the shoot. The recommended optimum K fertilizer rate to obtain 80% of the maximum shoot biomass in medium-K and low-K soils was 88.9 mg K2O kg−1 and 71.1 mg K2O kg−1, and the corresponding critical K concentration of shoot was 17.9 g kg−1 and 14.4 g kg−1. Appropriate K fertilizer application could promote plant growth and K uptake. An optimized K fertilizer management strategy and K diagnostic concentration should be carried out according to soil K levels during the establishment phase of Festuca arundinacea.

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“…The nutritional content of Pakchong grass is higher than that of Odot grass, especially the protein content, which is 16.45%, while the protein content of Odot grass is 13%. Pakchong grass production capacity is 1500 tons/ha/year [12] .…”

Section: Introductionmentioning

confidence: 99%

Diversification of Superior Forage Feed and Ration Formulation Techniques for Etawa (PE) Goats

Suwitari¹,

Suariani²,

Yudiastari³

et al. 2022

IJSSHR

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Singapadu Kaler Village is a village located in Sukawati District, Gianyar Regency, Bali Province. This village was formed in 1991. Singapadu Kaler Village consists of five (5) service hamlets namely Silakarang, Kederi, Samu, Belang and Belang Kaler. The population of Singapadu Kaler Village until 2020 totals 6645 people consisting of 3,271 men and 3,374 women. Most of the villagers' livelihoods are farmers so that the village is proclaimed as an agro-tourism. In Singapadu Village there is a Suka Tawa Farmers Group which is a group that raises Etawa Peranakan PE goats which are dairy goats to produce goat milk products. However, this group does not yet know and provide quality or superior forage forage, so they still make use of the forages / leaves around them. In addition to raising goats, varied forage is also needed of good quality, knowledge of good feed formulation techniques for dairy goats is needed so that they can provide optimal milk production. Group members wish to get superior forage seeds, as well as assistance with planting them and also appropriate feed formulation techniques for PE goats, so that quality forage will be available throughout the year. The activity will be carried out at the Suka Tawa Farmer Group in Singapadu Kaler Village, Sukawati District, Gianyar Regency, Bali. The Suka Tawa Livestock Group is familiar with several superior forages, masters the cultivation technology, ration formulation and understands and understands the nutritional needs of Etawa Breeding Goats. Technology mastery is almost 80%, so it is necessary to provide further assistance to the group during the first, second cutting and forage maintenance and presentation techniques so that the forage remains of good quality.

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Biomass Productivity, Developmental Morphology, and Nutrient Removal Rate of Hybrid Napier Grass (Pennisetum purpureum x Pennisetum americanum) in Response to Potassium and Nitrogen Fertilization in a Multiple-Harvest System

Cited by 7 publications

References 48 publications

Effects of perennial biomass yield energy grasses and fertilization on soil characteristics and nutrient balances

Effects of perennial biomass yield energy grasses and fertilization on soil characteristics and nutrient balances

Effects of Potassium Fertilizer Application on Festuca arundinacea I: Plant Growth and Potassium Requirement

Diversification of Superior Forage Feed and Ration Formulation Techniques for Etawa (PE) Goats

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