Agronomic aspects, chemical composition and digestibility of forage from corn-crotalaria intercropping

Galeano, Edgar Salvador Jara; Costa, Carolina Marques; Orrico, Marco Antônio Previdelli; Fernandes, Tatiane; Retore, M.; Silva, M. S. J.; Orrico, Ana Carolina Amorim; Lopes, Lucas Silva; Garcia, Rodrigo Arroyo; Machado, L. A. Z.

doi:10.1017/s0021859621000848

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…Silage maize outperforms other forage crops regarding biomass yield, crude fiber content, sugar content, protein quality, and nutritional value in stems and leaves [1,2]. Due to its high yield and quality, silage maize is one of the main feeds used in animal production [3]. Silage maize was planted in a very small area in China.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Growth of Silage Maize by Adjusting Planting Density and Nitrogen Application Rate Based on Farmers’ Conventional Planting Habits

Qian,

Ma,

Ren

et al. 2023

Agronomy

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Silage maize is cultivated due to its high nutritional value as a forage. China’s recent agricultural policy promotes the popularization and cultivation of silage maize. The production of silage maize is affected by planting density and nitrogen application. Based on investigating the planting habits of local farmers, we adjusted the planting density and nitrogen application rate to optimize the growth of silage maize. This study was conducted to investigate the effects of planting density (65,000 plant ha−1 (D1), 80,000 plant ha−1 (D2), and 95,000 plant ha−1 (D3)) and nitrogen rate (150 kg ha−1 (N1), 230 kg ha−1 (N2), and 310 kg ha−1 (N3)) on growth, yield, and quality of silage maize using a two-factor random block design. Planting density and nitrogen fertilizer significantly affected plant height, stem diameter, leaf area index, crude protein, neutral detergent fiber, acid detergent fiber, and starch of silage maize. In summary, the combination of a planting density of 80,000 plants ha−1 and a nitrogen application rate of 310 kg ha−1 produced a higher crude protein and starch yield and better palatability and quality; this result can aid silage maize growth.

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Section: Introductionmentioning

confidence: 99%

Optimizing the Growth of Silage Maize by Adjusting Planting Density and Nitrogen Application Rate Based on Farmers’ Conventional Planting Habits

Qian,

Ma,

Ren

et al. 2023

Agronomy

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Fermentative parameters and chemical composition of mixed silages from corn-crotalaria intercropping

Costa Araujo,

Jara Galeano,

Orrico Junior

et al. 2023

Animal Feed Science and Technology

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Integrated management strategies increased silage maize yield and quality with lower nitrogen losses in cold regions

Li,

Tong,

Jia

et al. 2024

Front. Plant Sci.

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IntroductionHigh-yield and high-quality production of silage maize in cold regions is crucial for ensuring the sustainable development of livestock industry.MethodsThis study first conducted an experiment to select the optimized silage maize varieties and densities using a split-plot design. The tested maize varieties were Xuntian 3171, Xuntian 16, Xunqing 858, and Fengtian 12, with each variety planted at densities of 67,500, 79,500, and 90,000 plants ha-1. Following the variety and density selection, another experiment on optimizing nitrogen management for silage maize was carried out using a completely randomized design: no nitrogen fertilizer (T1), applying urea-N 320 kg ha-1 (T2), applying urea-N 240 kg ha-1 (T3), applying polymer-coated urea-N 240 kg N ha-1 (T4), and ratios of polymer-coated urea-N to urea-N at 9:1 (T5), 8:2 (T6), 7:3 (T7), and 6:4 (T8). T5-T8 all applied 240 kg N ha-1. The yield and quality of silage maize, nitrogen use efficiency and balance, and economic benefits were evaluated.ResultsResults showed that Xunqing 858 had significantly higher plant height (8.7%-22.6% taller than the other three varieties) and leaf area (30.9% larger than Xuntian 3171), resulting in yield 11.5%-51.6% higher than the other three varieties. All varieties achieved maximum yields at a planting density of 79,500 plants ha-1. Integrated management strategy 7 (T7: Xunqing 858, 79,500 plants ha-1, polymer-coated urea-N to urea-N ratio of 7:3) achieved the highest yield of 73.1 t ha-1, a 6.1%-58.1% increase over other treatments. This strategy also produced the highest crude protein (11.1%) and starch (19.1%) contents, and the lowest neutral detergent fiber content (50.6%), with economic benefits improved by 10.3%-97.8% compared to other strategies. Additionally, T7 improved nitrogen use efficiency by 15.4%-94.5%, reduced soil nitrate leaching by 4.4%-36.5%, and decreased nitrogen surplus by 7.0%-46.6%.Conclusion and discussionComprehensive analysis revealed that the integrated management strategy 7 significantly improved silage maize yield and quality in cold regions while enhancing nitrogen use efficiency and reducing the risk of nitrate leaching, aligning with green agriculture development requirements. These findings will provide vital theoretical insights and practical guidance for high-yield and high-quality silage maize production in cold regions worldwide.

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Agronomic aspects, chemical composition and digestibility of forage from corn-crotalaria intercropping

Cited by 3 publications

References 22 publications

Optimizing the Growth of Silage Maize by Adjusting Planting Density and Nitrogen Application Rate Based on Farmers’ Conventional Planting Habits

Optimizing the Growth of Silage Maize by Adjusting Planting Density and Nitrogen Application Rate Based on Farmers’ Conventional Planting Habits

Fermentative parameters and chemical composition of mixed silages from corn-crotalaria intercropping

Integrated management strategies increased silage maize yield and quality with lower nitrogen losses in cold regions

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