Nitrogen fertilisation improves the grain production efficiency and sustainability of out-of-season corn and Congo grass intercropping

Batista, Karina; Giacomini, Alessandra Aparecida; Gerdes, Luciana; Mattos, Wilson Roberto Soares; Otsuk, Ivani Pozar

doi:10.1071/sr19002

Cited by 4 publications

(4 citation statements)

References 18 publications

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“…This result shows the need of N fertilization in the secondcrop corn intercropped with ruzigrass. Batista et al (2019b) found that second-crop corn intercropped with ruzigrass requires N fertilization management to complement the amount of N provided by the soil, to minimize the competition for this nutrient. Nitrogen rates on the agronomic performance of second-crop corn single and intercropped with ruzigrass or showy rattlebox…”

Section: Resultsmentioning

confidence: 99%

Nitrogen rates on the agronomic performance of second-crop corn single and intercropped with ruzigrass or showy rattlebox

Sapucay

Coelho

Bratti

et al. 2020

Pesqui. Agropecu. Trop.

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Topdressing nitrogen (N) rates may alter the second-crop corn performance, and this response may vary if the corn is grown single or intercropped with grass or leguminous species. This study aimed to evaluate the effect of topdressing N rates on the growth and productive performance of second-crop corn grown single or intercropped with ruzigrass (Urochloa ruziziensis) or showy rattlebox (Crotalaria spectabilis). The experiment was carried out in a randomized block design, with a split-plot arrangement and four replications. The plots consisted of corn grown single or intercropped with ruzigrass or showy rattlebox, while the subplots consisted of N rates (0, 60, 120, 180 and 240 kg ha-1). The evaluated variables were: SPAD index at R1; normalized difference vegetation index at V4 and V7; leaf area at R1; leaf and total corn dry mass at R1; grain and total corn dry mass at R6; number of ears per plant and grains per ear; 1,000-grain mass; and grain yield. In the absence of N fertilization and with topdressing of 60 kg ha-1 of N, the intercropping with U. ruziziensis reduces the growth and productive performance of second-crop corn. The topdressing N fertilization for second-crop corn intercropped with U. ruziziensis minimizes the forage competition on corn growth and provides a productive performance similar to monocropping from 120 kg ha-1 of N. The intercropping with C. spectabilis does not change the corn growth and productive performance, as well as the response to the topdressing N rates, when compared to monocropping, in the second crop cultivation.

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Section: Resultsmentioning

confidence: 99%

Nitrogen rates on the agronomic performance of second-crop corn single and intercropped with ruzigrass or showy rattlebox

Sapucay

Coelho

Bratti

et al. 2020

Pesqui. Agropecu. Trop.

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“…In the face of the reality of the low level of agricultural scale operation [1], high cost of grain production [2,3], and lack of a young and middle-aged labor force in rural areas [4][5][6], how to realize the transformation of agricultural operation modes and the improvement of grain production efficiency has become an important problem to be solved urgently [7][8][9]. The development of APTS and the promotion of service scale operation are the keys to answering this question [10].…”

Section: Introductionmentioning

confidence: 99%

Influence of Natural Risks and Non-Agricultural Income on Agricultural Trusteeship Decisions in Northeast China

Xue,

Liu

2024

Foods

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As the main service mode and management mode of socialized service, agricultural production trusteeship services (APTS) are an important way to realize the tight link between farmers and modern agricultural development, which is highly important for ensuring national food security. By constructing a utility model of farmers, this paper deduces the decision-making mechanism of farmers’ APTS from the dual mechanism of natural risk and non-agricultural employment income (NAEI) and uses the survey data of 956 farmers in the three northeastern provinces to verify the empirical results by using multivariate logit (Mlogit) and propensity score matching (PSM) methods. The research shows that natural risk hinders farmers’ choice of the APTS; NAEI has a positive impact on APST, and an increase in NAEI weakens the negative effect of natural risk on the choice of the APTS, and has an enhanced moderating effect. In addition, the scale heterogeneity analysis revealed that the impacts of natural risk and NAEI on farmers of different scales are significantly different. The NAEI adjustment effect has the greatest impact on small-scale farmers, followed by medium-scale farmers. In view of this, the government should stabilize the nonagricultural employment market and improve the nonagricultural employment opportunities of farmers. APTS organizations should transfer natural risks and improve the agricultural insurance system. According to the differences of different scales of farmers, different promotion policies are formulated, and the expansion of management and deepening services is proposed to further promote the development of APTS and consolidate the foundation of food security in China.

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“…Choosing a suitable intercropping system for each case is quite complex, as its success depends on interactions between the species used, management practices adopted, and environmental conditions (Iqbal et al, 2019). Intercropping of maize (Zea mays) with grasses in a pasture renovation and straw production for a no-tillage system is a recent practice, which has been widely studied in Brazil (Pereira et al, 2016;Batista, Giacomini, Gerdes, Mattos, & Otsuk, 2019;Rocha et al, 2020;Sapucay et al, 2020). However, intercropping grasses with soybeans is still a challenge due to the small size of soybean plants and low competition capacity (Machado, Cecato, Comunello, Concenço, & Ceccon, 2017).…”

Section: Introductionmentioning

confidence: 99%

Potential interaction of soybean-grass intercropping with residual nitrogen for a no-tillage system implementation

Batista,

Giacomini,

Gerdes

et al. 2023

Acta Sci. Agron.

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Combinations between crop intercropping and forage production in a no-tillage system are not well established for environments under low water retention and soil fertility conditions. Our study aimed to evaluate the potential interactions between soybean-grass intercropping with residual nitrogen in a no-tillage system. The experimental design was a randomized block with four replications in a subdivided plot scheme. The main plots in the summer season were: 1) soybean monoculture; 2) soybean - Aruana Guinea grass (Megathyrsus maximus cv. Aruana) intercropping, and 3) soybean - Congo grass (Urochloa ruziziensis cv. Comum) intercropping. The subplots were the nitrogen rates of 0, 50, 100, and 150 kg ha-1, applied as side-dressing in maize and grasses during the autumn-winter season. Here, the results of the summer seasons are shown. To do so, the parameters evaluated were soybean agronomic traits, dry biomass production, and macronutrient concentrations of plants intercropped. The main effects and interactions were studied. Our findings showed that soybean-Aruana Guinea grass intercropping is an alternative to no-tillage system implementation. Moreover, residual nitrogen from the autumn-winter season directly interfered with the dry biomass production of grasses intercropped with soybeans in the summer season. In short, the systems studied seem suitable for implementing a no-tillage system, which aims to neutralize degraded pastures and produce forage for ensilage. Despite the changes in macronutrient concentrations within the intercropping system and residual nitrogen, and among intercropped crops over the years, Congo grass intercropped with soybeans in the summer season showed great capacity for phosphorus, potassium, and magnesium cycling.

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Nitrogen fertilisation improves the grain production efficiency and sustainability of out-of-season corn and Congo grass intercropping

Cited by 4 publications

References 18 publications

Nitrogen rates on the agronomic performance of second-crop corn single and intercropped with ruzigrass or showy rattlebox

Nitrogen rates on the agronomic performance of second-crop corn single and intercropped with ruzigrass or showy rattlebox

Influence of Natural Risks and Non-Agricultural Income on Agricultural Trusteeship Decisions in Northeast China

Potential interaction of soybean-grass intercropping with residual nitrogen for a no-tillage system implementation

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