Effect of Litter Quality and Dosage to Potential Nitrification in Soil and Yield of Sweet Corn

Purwanto, Purwanto; Hartati, Sri; Istiqomah, Siti Hani

doi:10.15608/stjssa.v11i1.204

Cited by 5 publications

(3 citation statements)

References 6 publications

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“…The available-P level was analyzed using the Olsen method, the result of analysis was medium (10.9 mg/kg) on the organic paddy field, and very high on the non-organic paddy field (21.06 ppm). Phosphorus is available because pH at the research location is medium acid (6.47) to neutral (6.74), where in pH 6-7, P can be available for plants and not absorbed by Al (Purwanto et al 2014). Available-P in the non-organic paddy field is very high due to high chemical fertilizer input.…”

Section: Resultsmentioning

confidence: 99%

Assessment of soil quality in organic and non-organic paddy fields with technical irrigation system in Susukan

Haryuni

Wirawati

Minardi³

et al. 2020

pjss

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<p>Soil quality is a measure of the condition of soil. The goal of sustainable agriculture is to maintain a non-negative trend in productivity while maintaining soil quality. Susukan is an area in Semarang, Central Java, Indonesia, which has developed organic farming to increase rice productivity and quality. The main objective was to determine the sustainability of organic rice cropping systems. The organic farming system at the research location has been conducted for 8 years. Appropriate agricultural management can maintain the quality of soil, environment and improve the health of plants, animals and humans. This research aims to know the soil quality and determine the minimum data set (MDS) in organic and non-organic paddy field with a technical irrigation system. Paddy soil samples were analyzed in the laboratory. The parameters are porosity, permeability, hydrogen potential (pH), cation exchange capacity (CEC), soil organic matter (SOC), total-N (nitrogen), carbon/nitrogen (C/N) ratio, available-P (phosphorus), available-K (potassium), base saturation (BS), electric conductivity (EC), soil respiration (qCO2), redox potential (Eh) with 3 repetitions. The value of soil quality index (SQI) in the organic paddy field is 3.216 with bad soil quality criteria, while the non-organic paddy field is 0.147 with very bad criteria. The soil quality values are based on the key factors or MDS that is potential redox (EH), soil respiration (qCO2), potential hydrogen (pH), porosity, soil organic matter (SOC), total-N (nitrogen), C/N ratio, available-P (phosphorus).</p>

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Section: Resultsmentioning

confidence: 99%

Assessment of soil quality in organic and non-organic paddy fields with technical irrigation system in Susukan

Haryuni

Wirawati

Minardi³

et al. 2020

pjss

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“…Availability of micro-organisms and high decomposition of organic materials, strongly supports the optimal quality of the place to grew (Grigulis et al 2013;Biau et al 2013) The values of macronutrient show that in general the three locations had comparable macronutrients with moderate to very high category, except for nitrogen which was low in HBGMS (Bembab mountain forest) with 0.18. There is unknown cause of the low nitrogen content in Bembab mountain, but some researchers mentioned that the nitrogen content will be comparable to content of Corganic (Kidanemariam et al 2013;Purwanto et al 2014;). In addition, the amount of micronutrients at all three research locations was relatively similar within all moderate to very high categories.…”

Section: Soil Variables In Merbau Habitatmentioning

confidence: 99%

Vegetation diversity and its interspecies association with merbau (Intsia bijuga) at three habitats of tropical rain forest in West Papua, Indonesia

et al. 2021

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Abstract. Tasik S, Widyastuti SM, Musyafa, Suryanto P. 2021. Vegetation diversity and its interspecies association with merbau (Intsia bijuga) at three habitats of tropical rain forest in West Papua, Indonesia. Biodiversitas 22: 3383-3391. The stability of vegetation community indicated by species diversity, structure and composition affects the relationship between species. The understanding of interspecies association in their natural habitat is important especially for management and conservation strategies of species with particular interest, including merbau (Intsia bijuga O. Colebr Kuntze), a timber tree species with high commercial value. This study aims to investigate the diversity and composition of vegetation coexisting with merbau, and to see whether there is pattern of interspecies association with merbau. Vegetation analyses of species richness, diversity index, evenness index and interspecies relationship were conducted at three research locations in West Papua, Indonesia, namely Mount Meja Natural Tourism Park (Hutan Taman Wisata Alam Gunung Meja/HTWAGM), Bembab Beach Forest of South Manokwari (Hutan Bembab Pantai Manokwari Selatan/HBPMS) and Bembab Mountain Forest of South Manokwari (Hutan Bembab Gunung Manokwari Selatan/HBGMS). The results showed that the species Caryota rumphiana, Licuala sp 1, Calophyllum inophyllum, Garcinia pichoriza, Pometia coreacea and Pometia pinnata always grew side by side with Intsia bijuga in three locations. Furthermore, the association analysis indicated a positive and strong relationship between Intsia bijuga and Pometia coreacea, Licuala sp1, Licuala sp 2, Caryota rumphiana at all three research sites. In addition, Pometia coracea had the highest Chi-square value (X2 = 20.00) with the value of the three association indexes reached maximum value. We also found that the vegetation communities in the habitat of merbau had varying vegetation structure and composition as well as biodiversity indicators, yet they were all at stable state. The finding on vegetation analyses was confirmed with the result of soil analyses in which the physical and chemical properties had optimal conditions for vegetation to grow, including for merbau.

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“…The research on the influence and dosage of litter on soil nitrification was also found that the ratio of C/N >25 and categorized as moderate. The result indicated that the element was slowly available to fulfill the nutrients of plants [23].…”

Section: Rate Of Decompositionmentioning

confidence: 99%

Litter Decomposition Rate of Karst Ecosystem at Gunung Cibodas, Ciampea Bogor Indonesia

Sari

Qayim

Hilwan

2016

JTLS

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The study aims to know the productivity of litter and litter decomposition rate in karst ecosystem. This study was conducted on three altitude of 200 meter above sea level (masl), 250 masl and 300 masl in karst ecosystem at Gunung Cibodas, Ciampea, Bogor. Litter productivity measurement performed using litter-trap method and litter-bag method was used to know the rate of decomposition. Litter productivity measurement results showed that the highest total of litter productivity measurement results was on altitude of 200 masl (90.452 tons/ha/year) and the lowest was on altitude of 300 masl (25.440 tons/ha/year). The litter productivity of leaves (81.425 ton/ha/year) showed the highest result than twigs (16.839 ton/ha/year), as well as flowers and fruits (27.839 ton/ha/year). The rate of decomposition was influenced by rainfall. The decomposition rate and the decrease of litter dry weight on altitude of 250 masl was faster than on the altitude of 200 masl and 300 masl. The dry weight was positively correlated to the rate of decomposition. The lower of dry weight would affect the rate of decomposition become slower. The average of litter C/N ratio were ranged from 28.024%--28.716% and categorized as moderate (>25). The finding indicate that the rate of decomposition in karst ecosystem at Gunung Cibodas was slow and based on C/N ratio of litter showed the mineralization process was also slow.

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Effect of Litter Quality and Dosage to Potential Nitrification in Soil and Yield of Sweet Corn

Cited by 5 publications

References 6 publications

Assessment of soil quality in organic and non-organic paddy fields with technical irrigation system in Susukan

Assessment of soil quality in organic and non-organic paddy fields with technical irrigation system in Susukan

Vegetation diversity and its interspecies association with merbau (Intsia bijuga) at three habitats of tropical rain forest in West Papua, Indonesia

Litter Decomposition Rate of Karst Ecosystem at Gunung Cibodas, Ciampea Bogor Indonesia

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