scholarly journals Chemical attributes of a Hapludox soil after nine years of pig slurry application

2012 ◽  
Vol 47 (12) ◽  
pp. 1766-1773 ◽  
Author(s):  
Milton da Veiga ◽  
Carla Maria Pandolfo ◽  
Alvadi Antonio Balbinot Junior ◽  
Evandro Spagnollo
Keyword(s):  
Chemical Reaction ◽  
Soil Samples ◽  
Pig Slurry ◽  
No Tillage ◽  
Nutrient Contents ◽  
Continuous Application ◽  
Tillage System ◽  
Chemical Attributes ◽  
High Doses ◽  
Cu And Zn

The objective of this study was to evaluate the pig slurry application effects on chemical attributes of a Hapludox soil managed under no-tillage system. Treatments consisted of 50, 100 and 200 m³ ha-1 per year of pig slurry application, and a control with replacement of P and K exported through harvested grains. Attributes related to soil chemical reaction, exchange complex, and nutrient contents were determined in soil samples collected in the ninth year of experimentation from 0 - 0.025, 0.025 - 0.05, 0.05 - 0.10, 0.10 - 0.20, 0.20 - 0.40 and 0.40 - 0.60 m soil depths. The continuous application of high doses of pig slurry on the Oxisol surface under no-tillage acidifies the soil and increases Al, P, Cu, and Zn contents down to 0.2-m depth, and K levels down to 0.6-m depth.

scholarly journals Influence of Limestone and Gypsum Application on Chemical Attributes of Dystrophic Yellow Latosol Soil and Corn Yield in Eastern Amazon

2020 ◽  
Vol 8 (3) ◽  
pp. 363
Author(s):  
Sidney Daniel Araújo da Costa ◽  
Edilson Carvalho Brasil ◽  
Mário Lopes da Silva Júnior
Keyword(s):  
Calcium Content ◽  
Soil Samples ◽  
Corn Yield ◽  
No Tillage ◽  
Soil Calcium ◽  
Tillage System ◽  
Chemical Attributes ◽  
Chemical Conditions ◽  
Mg Content ◽  
Gypsum Application

The objective of this study was to evaluate changes in the chemical attributes of the soil caused by the use of limestone associated or not to with gypsum in no-tillage system. The experiment was conducted on a dystrophic Yellow Latosol in Pará state, Brazil. The experimental design was in randomized blocks in split plots with three replications. The treatments consisted of five doses of limestone (0, 1, 2, 3 and 4 t ha-1), with and without gypsum (0, 0.5 and 1 t ha-1). Soil samples were collected at depths of 0-20 and 20-40 cm. There was a significant effect on the analyzed variables at both depths. The doses of 3.64 and 2.19 t ha-1 of limestone associated with 0.5 t ha-1 of gypsum, were responsible for the largest increase in soil calcium content in the 0-20 and 20-40 cm layers, respectively. The highest increase in Ca + Mg content was found at 3.63 t ha-1 limestone combined with 0.5 t ha-1 gypsum. It was observed that 3.13 t ha-1 of limestone combined with 0.5 t of gypsum increased soil CEC. The 2.89 t ha-1 dose of limestone combined with 0.5 t of gypsum contributed to the increase in base saturation (V%). The use of limestone and gypsum promotes soil chemical conditions, as reflected by increased corn yield when compared with control (no treatment) plots. 

scholarly journals Changes in Carbon Stocks and Chemical Attributes of an Oxisol as a Result of Adoption Period of No-tillage System in the Brazilian Eastern Amazon

2020 ◽  
Vol 8 (3) ◽  
pp. 106
Author(s):  
Edilson Carvalho Brasil ◽  
Rubia Carla Ribeiro Dantas ◽  
Mário Lopes Da Silva Júnior ◽  
Luis De Souza Freitas
Keyword(s):  
Brazilian Amazon ◽  
Soil Mass ◽  
Conventional Tillage ◽  
Carbon Stocks ◽  
Soil Samples ◽  
No Tillage ◽  
Cultivation System ◽  
Tillage System ◽  
Chemical Attributes ◽  
Over Time

The conversion of forest areas to grain cropping has promoted a decrease in soil organic matter stocks in the Amazon. This process is most striking when the conventional cultivation system is used. In order to evaluate the changes in soil carbon and nutrient stocks resulting from the time of adoption of the no tillage system in a dystrophic Yellow Oxisol of the Brazilian Amazon biome, a study was conducted in a grain producing area in the northeastern of Pará, Brazil. The treatments corresponded to the following systems: CT6- conventional tillage system with six years of implementation; No-tillage system with 3 (NT3), 4 (NT4) and 7 (NT7) years of implementation. All systems were always cultivated in corn / soybean rotation. Deformed and non-deformed soil samples were collected on a the 2013 crop year at 0-10, 10-20 and 20-40 cm depths. Stocks of carbon (SC) and phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg) were calculated by using the equivalent soil mass methodology. Regardless of depth, the NT showed higher SC values than the CT. The adoption of NT showed a tendency of increasing SC of the soil over time. Such increases were up to 36% of the NT7 compared to the CT6. In NT7, the stocks of K, Ca and Mg were higher in relation to PC6. The EC correlated positively with the stocks of K, Ca and Mg in the areas under NT, regardless of the time of system adoption, up to 40 cm deep, indicating improvements in the soil fertility.

Accumulation of phosphorus fractions in typic Hapludalf soil after long-term application of pig slurry and deep pig litter in a no-tillage system

2012 ◽  
Vol 93 (2) ◽  
pp. 215-225 ◽  
Author(s):  
Renato Guardini ◽  
Jucinei José Comin ◽  
Djalma Eugênio Schmitt ◽  
Tales Tiecher ◽  
Marcos Antônio Bender ◽  
...  
Keyword(s):  
Phosphorus Fractions ◽  
Pig Slurry ◽  
No Tillage ◽  
Tillage System

scholarly journals Gradual correction of phosphorus availability in the no-tillage system

Revista CERES ◽  
2016 ◽  
Vol 63 (2) ◽  
pp. 256-264 ◽  
Author(s):  
Carlos Hissao Kurihara ◽  
William Marra Silva ◽  
Matheus Marques Dias ◽  
Bruno Patrício Tsujigushi ◽  
João Vitor de Souza Silva
Keyword(s):  
Exchange Resin ◽  
Anion Exchange Resin ◽  
Soil Samples ◽  
First Year ◽  
Panicum Maximum ◽  
No Tillage ◽  
Triple Superphosphate ◽  
Soybean Crop ◽  
Split Plot ◽  
Tillage System

ABSTRACT In areas cultivated under no-tillage system, the availability of phosphorus (P) can be raised by means of the gradual corrective fertilization, applying phosphorus into sowing furrows at doses higher than those required by the crops. The objective of this work was to establish the amount of P to be applied in soybean crop to increase content of P to pre-established values at the depth of 0.0 to 0.10 m. An experiment was carried out on a clayey Haplorthox soil with a randomized block experimental design distributed in split-split plot, with four replications. Two soybean crop systems (single or intercropped with Panicum maximum Jaca cv. Aruana) were evaluated in the plots. In addition, it was evaluated four P levels (0, 60, 120 and 180 kg ha-1 P2O5) applied in the first year in the split plots; and four P levels (0, 30, 60 and 90 kg ha-1 P2O5) applied in the two subsequent crops in the split-split plot. Contents of P were extracted by Mehlich-1 and Anion Exchange Resin methods from soil samples collected in the split-split plot. It was found that it is necessary to apply 19.4 or 11.1 kg ha-1 of P2O5, via triple superphosphate as source, to increase 1 mg dm-3 of P extracted by Mehlich-1 or Resin, respectively, in the 0.0 to 0.10 m layer of depth. The soil drain P character decreases as the amount of this nutrient supplied in the previous crops is increased.

scholarly journals Atributos químicos do solo e produtividade da soja após milho, braquiária e feijão-caupi em latossolo na região do cerrado

2020 ◽  
Vol 16 (2) ◽  
pp. 16-28
Author(s):  
Luan Marlon Ribeiro ◽  
Willian Daniel de Souza ◽  
Gessí Ceccon
Keyword(s):  
Yield Components ◽  
Exchange Capacity ◽  
No Tillage ◽  
Soybean Yield ◽  
Brachiaria Ruziziensis ◽  
Tillage System ◽  
Main Plot ◽  
Winter Crops ◽  
Chemical Attributes ◽  
Red Latosol

The objective of this study was to evaluate soil chemical attributes and yield components of soybean after maize, brachiaria and cowpea in an oxisol in the Cerrado region. The experiment was carried out at Embrapa-CPAO experimental area in Dourados-MS, Brazil, in the 2014/15 crop year, in a clayey dystroferric Red Latosol under no-tillage system (SPD). The experimental design was in randomized blocks with split plots with four replications. The soil chemical evaluations were carried out in soybean R1stage, being considered as the main plot the fall-winter crops (Brachiaria ruziziensis, safrinha corn, intercropping with B. ruziziensisand cowpea) and the subplots as soil depths (0-10; 10-20; 20-30 and 30-40 cm). For soybean yield components, fall-winter crops and subplots were soybean cultivars (BRS 284 and BRS 360 RR). In general, previous soybean crops in SPD provided higher contents of some nutrients at depths from 0 to 10 cm, in addition to higher cation exchange capacity, base saturation and soil organic matter. Cowpea, safrinha corn and B. ruziziensisprovided conditions for higher soybean yield. BRS 284 presented higher number of grains per plant, however BRS 360 RR proved to be more productive.

scholarly journals Forms and accumulation of copper and zinc in a sandy typic hapludalf soil after long-term application of pig slurry and deep litter

2013 ◽  
Vol 37 (3) ◽  
pp. 812-824 ◽  
Author(s):  
Tadeu Luis Tiecher ◽  
Carlos Alberto Ceretta ◽  
Jucinei José Comin ◽  
Eduardo Girotto ◽  
Alcione Miotto ◽  
...  
Keyword(s):  
Soil Profile ◽  
Surface Soil ◽  
Soil Layer ◽  
Soil Samples ◽  
Pig Slurry ◽  
Soil Layers ◽  
Surface Soil Layer ◽  
N Requirement ◽  
Cu And Zn

Successive applications of pig slurry and pig deep litter may lead to an accumulation of copper (Cu) and zinc (Zn) fractions in the soil profile. The objective of this study was to evaluate the Cu and Zn forms and accumulation in a Sandy Typic Hapludalf soil after long-term application of pig slurry and deep litter. In March 2010, eight years after initiating an experiment in Braço do Norte, Santa Catarina (SC), Brazil, on a Sandy Typic Hapludalf soil, soil samples were collected from the 0-2.5, 2.5-5.0, 5-10 and 10-15 cm layers in treatments consisting of no manure application (control) and with applications of pig slurry and deep litter at two levels: the single and double rate of N requirement for maize and black oat succession. The soil was dried, ground in an agate mortar and analyzed for Cu and Zn contents by 0.01 mol L-1 EDTA and chemically fractionated to determine Cu and Zn. The applications of Pig deep litter and slurry at doses equivalent to 90 kg ha-1 N increased the contents of available Cu and Zn in the surface soil layer, if the double of this dose was applied in pig deep litter or double this dose in pig slurry, Cu and Zn migrated to a depth of 15 cm. Copper is accumulated mainly in the organic and residual fractions, and zinc preferentially in the fraction linked to clay minerals, especially in the surface soil layers.

scholarly journals Weed Emergence in a Soil with Cover Crops in an Agroecological No-Tillage System

2018 ◽  
Vol 36 (0) ◽  
Author(s):  
M. SOUZA ◽  
V. MÜLLER JR. ◽  
C. KURTZ ◽  
G. BRUNETTO ◽  
R.R. COUTO ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Cover Crops ◽  
Secale Cereale ◽  
Raphanus Sativus ◽  
Soil Surface ◽  
Soil Samples ◽  
No Tillage ◽  
Avena Strigosa ◽  
Tillage System ◽  
Weed Emergence

ABSTRACT: The cultivation and deposition of cover crops residues on the soil surface can reduce weed emergence. The objective of this study was to evaluate the emergence of weeds, in a greenhouse, on a soil with cover crops in an agroecological no-tillage system. The experiment was conducted in a greenhouse with soil samples from an experiment installed in Ituporanga (Santa Catarina state). On April 2010 and 2011, the following field treatments were implemented: weed vegetation (VE), Hordeum vulgare (2010)/Avena strigosa (2011) (CV/AV), Secale cereale (CE), Raphanus sativus (NF), Secale cereale + Raphanus sativus (NF+CE) and Hordeum vulgare/Avena strigosa + Raphanus sativus (NF+AV). After the rotation of the species, the soil samples were collected in July. The identification of the species and the emergence assessment occurred 15, 30, 45, 60, 75, 90 and 105 days after the beginning of the experiment. The species with the highest incidence were: Amaranthus lividus, Oxalis spp., Cyperus spp., Stachys arvensis, Cynodon spp. and Rumex obtusifolius. Residues from single species of Secale cereale, Avena strigosa and Hordeum vulgare have shown the greatest ability to suppress weeds during the first 45 evaluation days; this corresponds to the beginning of the critical period in the onion development.

scholarly journals Yield and nitrogen balance in corn grown under no-tillage system

2020 ◽  
Vol 24 (11) ◽  
pp. 728-734
Author(s):  
Helton de S. Silva ◽  
Adailson P. de Souza ◽  
Mary A. B. de Carvalho ◽  
Valéria B. da Silva ◽  
Ewerton da S. Barbosa ◽  
...  
Keyword(s):  
Nitrogen Balance ◽  
Block Design ◽  
Nutrient Content ◽  
No Tillage ◽  
Randomized Block Design ◽  
Tillage System ◽  
Use Efficiency ◽  
High Doses ◽  
Corn Plants ◽  
Soil N Stock

ABSTRACT The corn crop is highly responsive to nitrogen fertilization; however, the application of high doses generally causes a reduction in the use efficiency of fertilizer. In this sense, this study aimed to determine the yield and nitrogen balance in corn grown under the no-tillage system. The experiment consisted of the application of four nitrogen doses (0, 30; 70 and 95 kg ha-1). In all plots with the AG 1051 hybrid corn, 80 and 56 kg ha-1 of P2O5 and K2O were applied, respectively. The experiment was arranged in a randomized block design with five replications. The grain yield had a linear increasing behavior according to the nitrogen doses, which reached 5,684.79 kg ha-1. The fertilization efficiency and the N extraction increased linearly with the increase of the nitrogen doses, obtaining with the highest dose the extraction of 114.93 kg ha-1 of N and a fertilization efficiency of 65%. The soil N stock of 4,489 kg ha-1 provides corn plants with 52.81 kg ha-1 of this nutrient. Corn adjusts the biomass production according to the availability of nitrogen, with no effect of N doses on the nutrient content in plant tissues.

scholarly journals SPATIAL VARIABILITY OF THE GRANULOMETRIC FRACTIONS AND CHEMICAL ATTRIBUTES OF A SANDY SOIL UNDER A NO-TILLAGE SYSTEM

2016 ◽  
Vol 2 (1) ◽  
pp. 67
Author(s):  
Osvaldo Guedes Filho ◽  
Sidney Rosa Vieira ◽  
Glécio Machado Siqueira ◽  
Márcio Koiti Chiba
Keyword(s):  
Spatial Variability ◽  
Sandy Soil ◽  
No Tillage ◽  
Tillage System ◽  
Chemical Attributes

scholarly journals GYPSUM AND PHOSPHORUS IN IMPROVING BIOMETRIC AND NUTRITIONAL ATTRIBUTES OF SOYBEAN/SECOND SEASON CORN SUCCESSION

2018 ◽  
Vol 31 (2) ◽  
pp. 326-335
Author(s):  
GUILHERME FILGUEIRAS SOARES ◽  
SIMÉRIO CARLOS SILVA CRUZ ◽  
TIAGO CAMILO DUARTE ◽  
CARLA GOMES MACHADO ◽  
DARLY GERALDO DE SENA JUNIOR
Keyword(s):  
Leaf Area ◽  
No Tillage ◽  
Area Index ◽  
Nutrient Contents ◽  
Two Cultures ◽  
Phosphate Fertilization ◽  
The Two Cultures ◽  
Tillage System ◽  
Soybean Plants ◽  
Ear Number

ABSTRACT The objective with this work was to evaluate the effect of the agricultural gypsum, associated with phosphate fertilization, on the nutrition, development and yield of soybean and corn in succession, under no-tillage system. The experiment was conducted at Universidade Federal de Goiás, Regional Jataí, in a randomized blocks design 5x3 factorial arrangement, with 4 replicates. The first factor consisted of the gypsum doses (0, 1, 2, 4 and 8 Mg ha-1) and the second the phosphorus doses (0, 50 and 100% of the recommended dose). Leaf nutrient contents, leaf area index, SPAD index, dry plant mass, final plant population, one thousand grain mass and grain yield were evaluated in the crops. In the soybean, the number of pods was also obtained and in the corn the average ear length, number of rows per ear, number of grain per ear and number of ears. Phosphorus doses increase leaf Mg contents in soybean and corn. The application of gypsum reduces the Mg and K leaf contents and increases the Ca, S, and Mn contents in the two cultures. Gypsum provides increases in the SPAD index in soybean plants. The unbalance of the N / K ratio in corn leaves, provided by the increase of the gypsum doses, reduces the leaf area of this crop. Doses of P and gypsum do not influence the yield of soybeans and maize.

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