Organic cabbage growth using green manure in pre-cultivation and organic top dressing fertilization

Cordeiro, Ana Amélia S; Rodrigues, Marinete Bezerra; Júnior, Murilo Gonçalves; Espíndola, José Antônio Azevedo; Araújo, Ednaldo da Silva; Guerra, José Guilherme Marinho

doi:10.1590/s0102-053620180415

Cited by 12 publications

(2 citation statements)

References 17 publications

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“…Calcium ions may activate the cell wall of plant root and enhance its ability of absorbing nutrients and water. Therefore, the nal growth trend was that W3Hn was greater than W4Hn, and W4Hn were greater than that of W2Hn, traditional group and the control group [31]. Results showed that with the same urea concentration, the effect of sustained-release microcapsules was conducive to the growth of cabbages, while FA and calcium ion concentration were conducive to improve the utilization rate of urea.…”

Section: Physiological Growth Curvesmentioning

confidence: 92%

Novel microencapsulated soil conditioner: improving utilization efficiency of core materials and yield of cabbages

Wentong

Wang

et al. 2023

Preprint

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Microencapsulated soil conditioner (MSC) with water-soluble core and natural polymer shell can be used to solve the problems of soil about over-fertilization and low efficiency. Fulvic acid (FA) is a kind of purified humic acid, which possesses the characteristics of water-solubility, fertilizer maintenance and expedient monitoring. The MSC containing FA was prepared by double emulsion and ion crosslinking methods. Structure analysis revealed that the MSC owned a particle size between 1.58 and 2.14 mm with a similar round shape. Sustained release and biodegradation tests exhibited that MSC can effectively improve the fertilizer-retaining and water-retaining capacities. In addition, a massive amount of these microcapsules were prepared using sharp-hole coagulation bath method. As a type of neutral fertilizer, urea is useful to plant, easy to preserve and use, and has little damage to soil. The two materials, FA and urea, were typical and useful as core materials of MSC for actual applications. The planting experiment of cabbages was carried out using these microcapsules. The growth status of cabbages, physiological activities, nitrogen balance index (NBI) value and photosynthesis rate were investigated. Results demonstrated that the MSC owned the ability of improving the yield of cabbages, and it was a very promising sustained-release fertilizer.

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Section: Physiological Growth Curvesmentioning

confidence: 92%

Novel microencapsulated soil conditioner: improving utilization efficiency of core materials and yield of cabbages

Wentong

Wang

et al. 2023

Preprint

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“…Fermented compost can have high levels and rapid availability of nutrients, meeting the demands of organic vegetable production systems (Cordeiro et al 2018;Silva et al 2018). In addition to nutrients, microorganisms considered "regenerators" are incorporated into the soil.…”

Section: Introductionmentioning

confidence: 99%

Characterization, nitrogen availability and agronomic efficiency of fermented composts in organic vegetable production

Pian¹,

Guerra

Berbara

et al. 2023

Preprint

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Fermented composts obtained from a mixture of raw materials and a microbial inoculant, known as “bokashi,” are alternatives used by many farmers around the world. We evaluated the chemical composition, fermentation pathways, N availability, and agronomic efficiency of fermented compost obtained from different plant-based raw materials. The standard compost formulation composition was 60% wheat bran and 40% castor bean bran. From this formulation, wheat bran was gradually replaced by coffee husk, brewery residue, and elephant grass bran, and leguminous bran replaced castor bean bran. Incubation tests evaluated nutrient content (C, N, P, K, Ca, Mg), pH, electrical conductivity, and fermentation pathways (by the organic acids lactic, acetic, propanoic, butyric, and ethanol). A bioassay in greenhouse conditions accessed N availability. Additionally, a field experiment evaluated the agronomic efficiency of 5 formulations and 4 doses (0 to 400 kg N ha−¹) in successive vegetable production. The formulations with a balanced C/N ratio showed the potential to combine desirable fermentative and nutritional characteristics with good N availability and plant growth. Some formulations drastically changed the compost characteristics, especially the full replacement of wheat bran for coffee husk and elephant grass, which presented undesirable fermentation pathways. Leguminous bran maintained the fermentative quality and increased the soil’s biological activity but decreased the nutrient content, N availability, and vegetable productivity. The brewery residue showed the most prominent fermentation quality, nutrient content, and N availability. The addition of 30% coffee husk resulted in agronomic performance and nutrient accumulation similar to the standard compost.

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Plant and soil N of different winter cover crops as green manure for subsequent organic white cabbage

Stein,

Hartung,

Perkons

et al. 2023

Nutr Cycl Agroecosyst

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Leguminous cover crops used as green manures can reduce fertilizer inputs by supplying nitrogen (N) via mineralization of incorporated N-rich biomass derived from biological N2 fixation. In a multi-year trial at three locations in Germany, the effects of leguminous, non-leguminous and mixed green manure crops on the yield of the subsequent cash crop white cabbage (Brassica oleracea convar. capitata var. alba) were investigated. The winter cover crop treatments were forage rye (Secale cereale L.), a mixture of forage rye with winter Hungarian vetch (Vicia pannonica Crantz), sole-cropped winter Hungarian vetch, winter pea (Pisum sativum L.), and winter faba bean (Vicia faba L.) with bare soil as a control. Sole-cropped legumes showed higher marketable cabbage head yields (head weight > 1.0 kg) compared to the other cover crop treatments, with 25.5, 25.9 and 28.1 Mg ha− 1 for vetch, pea and faba bean, respectively. The aboveground biomass of the legume winter cover crop treatments had higher N offtakes with 185, 177 and 159 kg N ha− 1 for vetch, pea and faba bean, respectively, with significantly lower carbon (C)/N ratios compared to rye and rye with vetch. The constant C/N ratio of the aboveground biomass of leguminous cover crops throughout the growing period indicates that the optimum incorporation date to achieve high N mineralization rates is less time dependent in leguminous compared to non-leguminous cover crops. The results of the present study show that leguminous winter cover crops do not reduce the soil N availability for a succeeding high N demanding cabbage crop resulting in yields comparable to agricultural practice without winter cover crops.

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Organic cabbage growth using green manure in pre-cultivation and organic top dressing fertilization

Cited by 12 publications

References 17 publications

Novel microencapsulated soil conditioner: improving utilization efficiency of core materials and yield of cabbages

Novel microencapsulated soil conditioner: improving utilization efficiency of core materials and yield of cabbages

Characterization, nitrogen availability and agronomic efficiency of fermented composts in organic vegetable production

Plant and soil N of different winter cover crops as green manure for subsequent organic white cabbage

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