On-farm trial assessing combined organic and mineral fertilizer amendments on vegetable yields in central Uganda

Pincus, Lauren; Margenot, Andrew J.; Six, Johan; Scow, Kate M.

doi:10.1016/j.agee.2016.03.033

Cited by 33 publications

(19 citation statements)

References 40 publications

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“…Hal ini terjadi karena jumlah populasi tanaman yang lebih banyak, sehingga akan menghasilkan jumlah buah per plot yang lebih banyak. Kesetimbangan hara yang harmonis dalam tanah sangat memengaruhi penyerapan yang baik, sehingga diharapkan dapat meningkatkan produksi tanaman (Pincus et al, 2016). Oleh karfena itu, pemberian solid dan arang sekam padi sebaiknya dilakukan bersamaan, karena pupuk hayati kaya akan mikrob dapat membantu perombakan bahan organik dari kompos.…”

Section: Jumlah Buahunclassified

Pengaruh Pemberian Solid (Tandan Kosong Kelapa Sawit) Dan Arang Sekam Padi Terhadap Produksi Tanaman Tomat

Fadhillah

Harahap

2020

JTSL

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This study aimed to determine the effect of various types of solid (oil palm empty fruit bunches) and rice husk charcoal on the production of tomato plant (Solanum lycopersicum L). The treatments tested for this study consisted of two factors. The first factor was the provision of solid, i.e. S0 = without solid (control), S1 = 0.50 kg solid polybag-1 , S2 = 0.70 kg solid polybag-1 , and S3: 1 kg solid polybag-1. The second factor was the provision of rice husk charcoal, i.e. P0 = without husk charcoal (control), P1 = 0.2 kg husk charcoal polybag-1 , and P2 = 0.4 kg husk charcoal polybag-1. Each polybag contained 5 kg of air-dried soil. The results of this study indicated that the provision of solid and rice husk charcoal against tomato plant production had no significant effect on stem diamater, total number of fruits per plant, and total weight of fruits per plant. However, the treatment interaction of 1 kg solid polybag-1 and 0.2 kg husk charcoal polybag-1 increased stem diameter, total number of fruits per plant, and total weight of fruits per plant.

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Section: Jumlah Buahunclassified

Pengaruh Pemberian Solid (Tandan Kosong Kelapa Sawit) Dan Arang Sekam Padi Terhadap Produksi Tanaman Tomat

Fadhillah

Harahap

2020

JTSL

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“…It is therefore assumed that adoption of improved irrigation systems has high probability of improving sustainability of AIV production. Integrated soil fertility management is a soil management approach that emphasis combine use of organic and mineral fertilizer inputs with the goal of improving yields and fertilizer use efficiency (Pincus, Margenot, Six, & Scow, 2016;Vanlauwe et al, 2014). Chivenge, Vanlauwe, and Six (2011) indicate from a meta -analysis of studies from across SSA that, combined use of organic and mineral fertilizer input leads to greater yield response than either input on its own.…”

Section: Dependent Variablesmentioning

confidence: 99%

Drivers of sustainable intensification in Kenyan rural and peri-urban vegetable production

Kurgat

Ngenoh

Bett

et al. 2018

International Journal of Agricultural Sustainability

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Sustainable intensification promotes environmentally sound and productive agriculture. However, use of sustainable intensification practices (SIPs) is low in many sub-Sharan African countries. This study examined the adoption of SIPs in Kenyan rural and peri-urban vegetable production to understand the scale of and underlying factors in the use of SIPs. A multistage sampling technique was employed to randomly select 685 rural and peri-urban vegetable farm households. Household data was then collected and anaylsed for four practices namely improved irrigation, integrated soil fertility, organic manure and crop diversification using a pre-tested structured questionnaire. A multivariate probit model was run to model simultaneous interdependent adoption decisions. Adoption of organic manure and African indigenous vegetables (AIV) diversification was high in both rural and peri-urban areas. However, adoption of improved irrigation systems and integrated soil fertility management was low, and even significantly lower in rural areas than in peri-urban areas (p < 0.041). Similarly, adoption intensity of SIPs was lower in rural areas than in peri-urban areas. Furthermore, the findings also show complementarities and substitutabilities between SIPs. Market integration, the farm location and household income were the major factors heavily influencing the adoption of most SIPs. Policies and programmes that seek to build household financial capital base and integrate farm households into effective and efficient vegetable markets need to be formulated and implemented in order to enhance adoption of SIPs in AIV production.

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“…Positive interaction is partly attributed to temporary immobilization of nutrients early in the season, so that they are protected from losses for later crop uptake. Affecting immobilization depends upon manure quality and soil characteristics like clay amount (Pincus et al, 2016). Materials like maize stover with moderate organic carbon have always produced positive interactive effect unlike high quality materials most especially for longer duration crops (Chivenge et al, 2009).…”

Section: Interactive Yield Effect Of Combined Application Of Organic and Mineral N And P Fertilizersmentioning

confidence: 99%

“…Combined applications can improve synchronization of nutrient availability and subsequent uptake by the crop (Ayuke et al, 2004), especially when the levels applied are low (Kapkiyai et al, 1999). Some studies reported greater yield increase than when either fertilizer type was applied alone at a nutrient rate equivalent to the combination (Chivenge et al, 2009;Bekunda et al, 2010;Pincus et al, 2016). Muyayabantu et al (2012) reported greater maize (Zea mays L) yield with increasing rates of farmyard manure application.…”

Section: Introductionmentioning

confidence: 99%

Exploring on-farm additive common bean yield potential to organic and mineral fertilizers on contrasting soils of Buganda Catena, Central Uganda

Kyebogola¹,

Semalulu²,

Lenssen³

et al. 2021

Afr. J. Agric. Res.

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Mineral and organic fertilizers have great potential to enhance crop yields in low fertility soils of the Buganda catena. However, the need for site-specific knowledge on use and yield of the two fertilizer types in a complex soil scape is acute among smallholder farmers exploiting any soil differences. This study evaluated on-farm grain yield response of common bean (Phaseolus vulgaris L.) to organic and mineral N and P fertilizers on three soils. Treatments included poultry manure at 0, 2.5 and 5.0 t ha -1 , and N and P each at 0, 7.5, and 15 kg ha -1 in a complete factorial for two rainy seasons on each of the local farmers' soils classified as Phaeozem, Cambisol, and Umbrisol. Fertilizer application resulted in 20, 25 and 36% maxima grain yield increase relative to soils (Phaeozem, Cambisol and Umbrisol soil, respectively) potentials when no nutrient inputs is applied. Mineral fertilizers applied separately reduced yield on the Cambisol while on Umbrisol soil, there was no particular increase; hence these were risky applications on highly degraded soils. Yield increases were greater with manure, with or without mineral fertilizers, but yield increase was not particularly fundamental on Phaeozem sites but was on Cambisol and marginal on the Umbrisol, resulting into positive and negative interaction effects, respectively. Thus, soil specific rates of manure nutrient ratios or with N and P mineral fertilizers are an effective strategy for targeting improved common bean yield under indigenous soil taxonomy of Buganda catena soils.

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On-farm trial assessing combined organic and mineral fertilizer amendments on vegetable yields in central Uganda

Cited by 33 publications

References 40 publications

Pengaruh Pemberian Solid (Tandan Kosong Kelapa Sawit) Dan Arang Sekam Padi Terhadap Produksi Tanaman Tomat

Pengaruh Pemberian Solid (Tandan Kosong Kelapa Sawit) Dan Arang Sekam Padi Terhadap Produksi Tanaman Tomat

Drivers of sustainable intensification in Kenyan rural and peri-urban vegetable production

Exploring on-farm additive common bean yield potential to organic and mineral fertilizers on contrasting soils of Buganda Catena, Central Uganda

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