Soil solution and plant nitrogen on irrigated rice under controlled release nitrogen fertilizers

Veçozzi, T. A.; Sousa, Rogério Oliveira de; Scivittaro, W. B.; Weinert, Cristiano; Tarrillo, V. R. C.

doi:10.1590/0103-8478cr20170279

Cited by 7 publications

(6 citation statements)

References 8 publications

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“…The pH of the soil may change depending on the dose and fertilizer type used, soil characteristics and established crop (Veçozzi et al, 2018). In this study, the effect of the fertilizer type was only confirmed during 20 days, specifically, before the first cut of the brachiaria grass.…”

Section: Active Acidity Electrical Conductivity and Macronutrient Con...mentioning

confidence: 59%

Green Manure and Mineral Fertilization: Residual Effect on Dry Matter Production, Nutrient Extraction and Nutrients Recovery Efficiency in Two Succesive Crops

Peralta-Antonio

Watthier

Santos³

2021

Trop Subtrop Agroecosyst

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Background. Green manures (GM) are an alternative to partially or totally replace mineral fertilizers, in successive crops, but few studies have studied the residual effect (REEF) of GM on the subsequent crops. Objective. To determine the REEF of GM (Mucuna cinerea, sin. Stizolobium cinereum) and mineral fertilization (MF) on dry matter production (DM), nutrient extraction (NEX) and soil solution (SS) characteristics in the Brachiaria brizantha (BB). A second objective was to determine the nutrient recovery efficiency (RE) in two successive crops of broccoli and BB. Methodology. A single application of GM snd MF was done on broccoli crop, in pots and greenhouse conditions. The treatments were: 1) unfertilized plants (Control). 2) 200% of the recommended dose for broccoli, applied exclusively through MF (MF200). 3) GM at 10 t ha-1 (GM10). 4) The same dose of N, P, K, Ca, Mg, and S applied through GM10 was applied through MF (MF=GM10). 5) GM10 + MF to supply the same dose of N, P, K, Ca, Mg, and S supplied with MF200 (GM10+MF). After broccoli harvest, the BB was planted in the same pots, without additional fertilization. Results. In BB, greater REEF on DM, NEX (N, P, K, Ca, Mg and S), electrical conductivity and nutrient concentration (N, K, Ca, Mg and S) in SS, was detected with GM10 and GM10+MF. Considering both crops, greater DM and NEX were obtained with MF200 and GM10+MF. Higher RE of P and S was obtained with GM10, while, higher RE of K and Ca was obtained with the MF=GM10. Implications. The study shows that the efficiency of nutrients applied through GM at 10 t ha-1, combined with low doses of mineral fertilization, increases in successive crops. Conclusion. The REEF on the DM and nutrient extraction of the BB change depending on the fertilizer type and dose used. The REEF on the SS characteristics is only detected in the initial growth phase of the BB. In successive crops, the proportion of DM produced and the amount of nutrients extracted changes depending on the species used. To obtain a similar nutrient recovery between GM and MF is necessary to consider the DM of more of one crop.

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Section: Active Acidity Electrical Conductivity and Macronutrient Con...mentioning

confidence: 59%

Green Manure and Mineral Fertilization: Residual Effect on Dry Matter Production, Nutrient Extraction and Nutrients Recovery Efficiency in Two Succesive Crops

Peralta-Antonio

Watthier

Santos³

2021

Trop Subtrop Agroecosyst

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“…No studies testing coated urea in the cultivation of cactaceae were found. However, Veçozzi et al (2018) evaluated the solubilization and NUE of nitrogen fertilizers of controlled release in irrigated rice and it was found that the NUE of the urea coated by polymers was similar to the conventional urea, not increasing the release time of the nutrient in this cultivation system.…”

Section: Discussionmentioning

confidence: 98%

“…The current study indicates that the coated urea, in yellow latosol with medium clay content, under these climatic conditions had low efficiency in the cultivation of cactus pear when compared to the conventional urea. It is important to highlight that the use of coated urea must be economically viable, and it is necessary that the increase in efficiency causes productivity gains that compensate the investment in a higher cost product, allowing the substitution of conventional sources (Veçozzi et al, 2018). The responses of the agronomic parameters of cactus pear variety Doce were proportional to the increase in the level of N, with the best level being 240 kg N/ha.…”

Section: Discussionmentioning

confidence: 99%

Efficiency of fertilization with coated urea in the cultivation of cactus pear under rainfed conditions in Brazilian savannah

et al. 2021

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Cactus pear is an important species for animal feeding in the regions of dry climate. There is no information on the fertilization with coated urea in the cultivation of cactus pear under rainfed conditions in the savannah region. The aim of the current study was to evaluate the forage potential of Nopalea cochenillifera variety Doce in yellow latosol under rainfed conditions in the Brazilian savannah, comparing the fertilization with urea and coated urea in different levels. A randomized block design was adopted, in a 2 × 4 × 2 factorial scheme, with the factors corresponding to two sources of nitrogen (urea and urea coated with polymers, N+), four levels of nitrogen (0, 60, 120 and 240 kg/ha/year) and two harvests (year I and year II). The plants were evaluated after 1 year of growth, in each year of evaluation, regarding the characteristics of growth, production, chemical and mineral composition and nutritional value. The level of 240 kg/ha provided higher emission of cladodes per plant (17.33 and 18.17), respectively, for N+ and urea. The highest nitrogen use efficiency was found in the level of 60 kg N/ha (142 kg/ha/year). NFC values were 3.5 g/kg dry matter (DM) higher when the cactus pear was fertilized with urea in year I and 5.4 g/kg DM in year II. The use of conventional urea promoted better results of agronomic and nutritional characteristics of the cactus pear, under rainfed regime, when compared to the use of urea coated with polymers.

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“…Pedrinho et al (2015) working with rapid cycle crop, as the lettuce, and with slow release and traditional urea, found no differences in productivity among the studied sources. Veçozzi et al (2018) using N sources with urea and urea coated with polymers, in the irrigated rice crop, found no effect among the sources.…”

Section: Introductionmentioning

confidence: 94%

Nitrogen coated fertilizer with controlled release for the maize crop

et al. 2020

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Maize represents one of the most cultivated crops of cereals in the world, being used as a source of grain, silage and biofuel. Nitrogen is very required in the maize crop, making nitrogen fertilization a significant part of the production cost. The objective of this study was to evaluate the response of two sources of N, urea and coated urea of controlled release, regarding the productivity and the cost/benefit ratio in maize for 2nd harvest. The experiment was carried out in the field in soil classified as dystroferric Red Latosol and treatments distributed in experimental plots, following the randomized block design with four replications. The treatments were 40 kg N ha-1 of common urea; 60 kg N ha-1 of common urea; 40 kg N ha-1 of coated urea; 60 kg of N-coated urea and the control without application of N broadcast application in planting. The maize crop responded to the application of nitrogen at planting. However, the use of coated urea did not increase the grain yield in relation to the use of common urea. The economic analysis demonstrated a better efficiency of use of N and the best net revenues with the application of the dose of 40 kg N ha -1 of common urea in the planting of the crop.

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Soil solution and plant nitrogen on irrigated rice under controlled release nitrogen fertilizers

Cited by 7 publications

References 8 publications

Green Manure and Mineral Fertilization: Residual Effect on Dry Matter Production, Nutrient Extraction and Nutrients Recovery Efficiency in Two Succesive Crops

Green Manure and Mineral Fertilization: Residual Effect on Dry Matter Production, Nutrient Extraction and Nutrients Recovery Efficiency in Two Succesive Crops

Efficiency of fertilization with coated urea in the cultivation of cactus pear under rainfed conditions in Brazilian savannah

Nitrogen coated fertilizer with controlled release for the maize crop

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