scholarly journals Chemical soil attributes after wheat cropping under nitrogen fertilization and inoculation with Azospirillum brasilense

2017 ◽  
Vol 38 (2) ◽  
pp. 659 ◽  
Author(s):  
Fernando Shintate Galindo ◽  
Marcelo Carvalho Minhoto Teixeira Filho ◽  
Salatiér Buzetti ◽  
José Mateus Kondo Santini ◽  
João Leonardo Miranda Bellotte ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Azospirillum Brasilense ◽  
Block Design ◽  
Organic Matter Content ◽  
Mineral N ◽  
Soil Attributes ◽  
Chemical Soil ◽  
Irrigated Wheat ◽  
N Rates ◽  
The Impact

Azospirillum brasilense plays an important role in biological nitrogen fixation (BNF) in grasses. However, further studies are needed to define how much mineral N can be applied while simultaneously maintaining BNF contribution and maximizing crop yield and to determine the impact of these practices on soil fertility. Thus, we aimed to investigate the effect of inoculation with A. brasilense, in conjunction with varying N doses and sources in a Cerrado soil, on soil chemical attributes after two years of irrigated wheat production. The experiment was initiated in Selvíria - MS under no-tillage production in an Oxisol in 2014 and 2015. The experimental design was a randomized block design with four replications, and treatments were arranged in a 2 x 5 x 2 factorial arrangement as follows: two N sources (urea and Super N - urea with inhibitor of the enzyme urease NBPT (N - (n-butyl thiophosphoric triamide))), five N rates (0, 50, 100, 150 and 200 kg ha-1), and with or without seed inoculation with A. brasilense. The increase in N rates did not influence the chemical soil attributes. Super N acidified the soil more compared to urea. A. brasilense inoculation reduced the effect of soil acidification in intensive irrigated wheat cultivation; however, the base extraction was higher, resulting in a lower soil CEC after cultivation with inoculation. Therefore, the cultivation of wheat inoculated with A. brasilense was not harmful to soil fertility because it did not reduce the base saturation and organic matter content (P, K, Ca, Mg, and S).

scholarly journals Evaluation of Coconut Based Anacardium occidentale Agroforestry System to Improve the Soil Properties of Coconut Growing Lands in Wet, Intermediate and Dry Zone of Sri Lanka

CORD ◽  
2019 ◽  
Vol 35 (01) ◽  
pp. 50
Author(s):  
S. H. S. Senarathne
Keyword(s):  
Sri Lanka ◽  
Soil Fertility ◽  
Bulk Density ◽  
Block Design ◽  
Organic Matter Content ◽  
Agroforestry Systems ◽  
Anacardium Occidentale ◽  
Total N ◽  
Exchangeable K ◽  
The Impact

This study was intended to assess the impact of coconut based Anacardium occidentale (Cashew) agroforestry systems on soil fertility of degraded coconut lands in wet, intermediate and dry zones of Sri Lanka. Two treatments were evaluated according to randomized complete block design with three replicates. Coconut based agroforestry systems intercropped with A. occidentale and sole coconut were evaluated as two treatments. Soils from three depths were analyzed for its’ chemical, physical and biological properties. According to the esults, higher total N, available P and exchangeable K levels were shown in sole coconut systems than A. occidentale intercropped system while the higher total N levels (2% higher than top soil and 27% higher than deepr soil) were observed in sub soils compared top and deep soils. Higher P content was observed in top soils than in deeper soils. The exchangeable K was observed in higher quantities in sub soil than in deeper soils and was varied with locations. Organic matter content in intercropping of A. occidentale has been increased by 37% and the highest was observed in top soils. Soil bulk density has been reduced by 9% in A. occidentale intercropped system enhancing the root growth. Bulk density has been increased with the depth of the soil. Higher soil microbial activity was observed in A. occidentale intercropped system and it was 22% higher than sole coconut system. Sole coconut system has 50% higher soil moisture percentage and the highest was recorded in sub soils. This study confirms that intercropping of A. occidentale has a positive effect on improving soil fertility of degraded coconut growing soils in wet, intermediate and dry zones of Sri Lanka.

scholarly journals Distribution of nitrogen in wheat plant in its late growth stages with regard to organic fertilisation and mineral nitrogen rate

2011 ◽  
Vol 51 (No. 12) ◽  
pp. 553-561 ◽  
Author(s):  
B. Čeh-Brežnik ◽  
A. Tajnšek
Keyword(s):  
Green Manure ◽  
Farmyard Manure ◽  
Mineral Nitrogen ◽  
N Recovery ◽  
Growth Stages ◽  
Mineral N ◽  
N Content ◽  
Organic Fertilisation ◽  
N Rates ◽  
The Impact

In Central Slovenia within a long term static experiment IOSDV we investigated the impact of mineral nitrogen (N) fertilisation (0, 65, 130, 195 kg/ha) on the N content and the N amount in winter wheat (larger roots, stems, spikes and leaves) in EC 81/82 and EC 90/91, employing three systems of management: farmyard manure ploughing in before forecrop maize, straw ploughing in and green manure, no organic fertilisation. At EC 81/82 the N content in larger roots was around twice as high as the N content in stems and around twice as low as the N content in spikes and leaves. There was 80% of the whole N amount in plant located in the spikes and leaves (33–168 kg/ha) in EC 81/82 and 90% in EC 90/91. Calculated N recovery from mineral fertiliser was 68–87%; it increased with the increasing N rates in the system with farmyard manure ploughing in and in the system with no organic fertilisation, but not in the system with straw ploughing in and green manure. Between EC 81/82 and EC 90/91 wheat gained from 4 to 34 kg N/ha, but there were more important translocations of N inside the plants, which were higher at higher mineral N rates. There was a significant impact of management system on the N uptake at the highest mineral N rate.

The impact of diversification of a rice–wheat cropping system on crop productivity and soil fertility

2002 ◽  
Vol 139 (4) ◽  
pp. 405-412 ◽  
Author(s):  
V. K. SINGH ◽  
B. B. SHARMA ◽  
B. S. DWIVEDI
Keyword(s):  
Soil Fertility ◽  
Green Manure ◽  
Protein Production ◽  
Field Experiments ◽  
Block Design ◽  
Crop Productivity ◽  
Research Centre ◽  
Wheat Crop ◽  
Cropping Intensity ◽  
The Impact

Field experiments were conducted at the Crop Research Centre of Govind Ballabh Pant University of Agriculture and Technology, Pantnagar during 1996/97 and 1997/98. Each experiment comprised 10 crop sequences: (a) wheat–rice, (b) chickpea–rice, (c) lentil–rice, (d) pea–rice, (e) wheat–mungbean green manure–rice, (f) wheat–Sesbania green manure–rice, (g) wheat–fodder–rice, (h) chickpea–fodder–rice, (i) lentil–fodder–rice and (j) pea–fodder–rice, in a randomized block design with four replications. The crop sequences were compared in terms of economic rice equivalent yield (REY), protein production, apparent nutrient balances and effect on soil fertility status. Amongst crop sequences involving two crops each year (200% cropping intensity), chickpea–rice gave highest REY and protein production. Of the sequences involving three crops each year (300% cropping intensity), chickpea–fodder–rice and wheat–fodder–rice were superior to others. The P balances were positive for all sequences, whereas K balances were generally negative except for sequences involving green manure legumes. Green manuring with Sesbania or mungbean helped restore soil fertility, indicating the advantage of green manure for higher productivity and sustainability of rice–wheat system. Chickpea–rice and chickpea–fodder–rice appeared promising alternatives to rice–wheat crop sequence.

scholarly journals Dry Matter Production, Nutrient Cycled and Removed, and Soil Fertility Changes in Yam-Based Cropping Systems with Herbaceous Legumes in the Guinea-Sudan Zone of Benin

Scientifica ◽  
2016 ◽  
Vol 2016 ◽  
pp. 1-12
Author(s):  
Raphiou Maliki ◽  
Brice Sinsin ◽  
Anne Floquet ◽  
Denis Cornet ◽  
Eric Malezieux ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Dry Matter ◽  
Cropping Systems ◽  
Block Design ◽  
Chemical Properties ◽  
Mucuna Pruriens ◽  
Total N ◽  
Herbaceous Legumes ◽  
Andropogon Gayanus ◽  
The Impact

Traditional yam-based cropping systems (shifting cultivation, slash-and-burn, and short fallow) often result in deforestation and soil nutrient depletion. The objective of this study was to determine the impact of yam-based systems with herbaceous legumes on dry matter (DM) production (tubers, shoots), nutrients removed and recycled, and the soil fertility changes. We compared smallholders’ traditional systems (1-year fallow ofAndropogon gayanus-yam rotation, maize-yam rotation) with yam-based systems integrated herbaceous legumes (Aeschynomene histrix/maize intercropping-yam rotation,Mucuna pruriens/maize intercropping-yam rotation). The experiment was conducted during the 2002 and 2004 cropping seasons with 32 farmers, eight in each site. For each of them, a randomized complete block design with four treatments and four replicates was carried out using a partial nested model with five factors: Year, Replicate, Farmer, Site, and Treatment. Analysis of variance (ANOVA) using the general linear model (GLM) procedure was applied to the dry matter (DM) production (tubers, shoots), nutrient contribution to the systems, and soil properties at depths 0–10 and 10–20 cm. DM removed and recycled, total N, P, and K recycled or removed, and soil chemical properties (SOM, N, P, K, and pH water) were significantly improved on yam-based systems with legumes in comparison with traditional systems.

scholarly journals Wheat yield in the Cerrado as affected by nitrogen fertilization and inoculation with Azospirillum brasilense

2017 ◽  
Vol 52 (9) ◽  
pp. 794-805 ◽  
Author(s):  
Fernando Shintate Galindo ◽  
Marcelo Carvalho Minhoto Teixeira Filho ◽  
Salatiér Buzetti ◽  
José Mateus Kondo Santini ◽  
Cleiton José Alves ◽  
...  
Keyword(s):  
Grain Yield ◽  
Azospirillum Brasilense ◽  
Wheat Yield ◽  
Urease Inhibitor ◽  
N Accumulation ◽  
Leaf Chlorophyll ◽  
Spike Number ◽  
Tillage System ◽  
Irrigated Wheat ◽  
N Rates

Abstract: The objective of this work was to evaluate the effect of inoculation with Azospirillum brasilense, associated with N rates and sources, in soil of the Cerrado (Brazilian savanna), on the grain yield of irrigated wheat (Triticum aestivum). The experiment was carried out under a no-tillage system in a Typic Haplustox. The experimental design was randomized complete blocks with four replicates, in a 2x5x2 factorial arrangement: two N sources (urea and urea with NBPT urease inhibitor); five N rates applied as topdressing (0, 50, 100, 150, and 200 kg ha-1); and with or without seed inoculation with A.brasilense. The increase in the N rates positively affected spike length, number of spikelets and of grains per spike, number of spikes per meter, N accumulation in the straw, leaf chlorophyll content, and grain yield of irrigated wheat, regardless of the use of NBPT urease inhibitor with conventional urea. Singly, inoculation with A.brasilense does not affect production components and grain yield, despite the increase in N content in wheat straw. The inoculation with A.brasilense, associated with the application of 140 kg ha-1 N, provides the highest grain yield of irrigated wheat cropped after corn in low-altitude Cerrado.

scholarly journals Maize productivity in succession to cover crops, nitrogen fertilization and inoculation with Azospirillum brasilense

2019 ◽  
Vol 23 (12) ◽  
pp. 966-971
Author(s):  
Antônio C. dos Santos Júnior ◽  
Marco A. C. de Carvalho ◽  
Oscar M. Yamashita ◽  
Tauan R. Tavanti ◽  
Renan F. R. Tavanti
Keyword(s):  
Cover Crops ◽  
Nitrogen Fertilization ◽  
Azospirillum Brasilense ◽  
Block Design ◽  
Nitrogen Concentration ◽  
Pigeon Pea ◽  
N Fertilization ◽  
Mineral N ◽  
Maize Production ◽  
Maize Productivity

ABSTRACT The use of microorganisms in agriculture such as Azospirillum brasilense and the cultivation of cover crops in the off season, together with nitrogen fertilization, may be interesting alternatives to increase crop yield. The objective of this study was to evaluate the growth, production and nitrogen concentration of maize grown in succession to cover crops and their interactions with A. brasilense inoculation and topdressing mineral N fertilization. The experiment was conducted on Oxisol, in randomized block design in split-split-plot scheme with four repetitions. The plots consisted of four cover crops: jackbean (Canavalia ensiformis), dwarf pigeon pea (Cajanus cajan), crotalaria (Crotalaria spectabilis) and spontaneous vegetation. In the subplots, with or without inoculation of A. brasilense in maize seeds, and in the sub-subplots: with or without topdressing N fertilization. It was verified that jackbean can generate increments of up to 8.3% in grains per ear, 6.9% in length of ear and 15.2% in mass of one hundred grains. Consequently, the grain yield was higher in this treatment (18%). The inoculation with A. brasilense and topdressing N fertilization did not generate significant increments in maize production components, as observed for cover crops.

scholarly journals KETERSEDIAAN NITROGEN DAN POPULASI BAKERI TANAH DALAM SISTEM TANAM SRI (SYSTEM OF RICE INTENSIFICATION)

BUANA SAINS ◽  
2018 ◽  
Vol 18 (1) ◽  
pp. 35
Author(s):  
Nurul Istiqomah ◽  
Tanya Naomi Indarto ◽  
Virgus Amien Nugroho ◽  
Cahyo Prayogo
Keyword(s):  
Soil Bacteria ◽  
Population Analysis ◽  
Block Design ◽  
Aerobic Condition ◽  
Plate Count ◽  
System Of Rice Intensification ◽  
Soil Productivity ◽  
Mineral N ◽  
Organic C ◽  
The Impact

The obstacles that caused the declining of rice production is due to the reduction of soil fertility status. Various efforts were made to increase the production such as intensification and expansion in rice farming system. SRI cropping systems an alternative technique for improving soil productivity following maintaining water uses under an aerobic condition which exaggerated the raising of microorganisms activities in soil and improving the availability of nutrients particularly nitrogen status.This study was aimed to examine the impact of SRI system on mineral N status along with the population of soil bacteria which involving in nitrogen dynamic. The research was conducted in October 2015-March 2016 in Kepanjen-Malang using Randomized Block Design with 4 treatments and 4 replicates. Soil sampling was conducted at 0 and 100 Day After Planting (DAP) collecting at a depth of 0-20 cm and 20-40 cm. Measured soil parameter was including pH, organic-C, mineral N (NH4+ and NO3-). Soil bacteria are identified using plate count method (spread plate) for estimating their population. Analysis of Variance (ANOVA) was used followed by Duncan test at 5% level along with correlation and regression analysis.The results showed that the SRI cultivation system can increase the mineral N at the level of 14.09 ppm compared to their initial value, amounting to 57.48 ppm of Nitrate and the bacterial population at the level of 6.25 x 108 cfu g-1. The best treatment was found under the combination of NPK (15-15-15) and biofertilizer yielded at 8.42 t ha-1. Multivariate analysis results indicate that P0 treatment significantly different with treatment P1, P2, and P3. However, the treatment of P1 were not significantly different P3.

scholarly journals The Impact of Biofertilizers and NPK Fertilizers Application on Soil Phosphorus Availability and Yield of Upland Rice in Tropic Dry Land

2021 ◽  
Vol 232 ◽  
pp. 03012
Author(s):  
B.N. Fitriatin ◽  
V.F. Dewi ◽  
A. Yuniarti
Keyword(s):  
Upland Rice ◽  
Soil Phosphorus ◽  
Block Design ◽  
Organic Matter Content ◽  
P Uptake ◽  
Phosphorus Availability ◽  
Dry Land ◽  
Plant P Uptake ◽  
Nutrients Availability ◽  
The Impact

Dry land in Indonesia is dominated by marginal soil which have low macro nutrient content, low organic matter content and low soil microbial activity. Improving soil quality it is necessary to increase nutrients availability such as biofertilizers application. Biofertilizers contains beneficial microbial inoculants to increase soil nutrient availability. The use of biofertilizers combined with NPK fertilizer will increase macro nutrients availability and optimize plant growth, thus will increase fertilizers efficiency. This experiment was carried out to study the impact of biofertilizers on available-P, plant P-uptake and yield of upland rice at Land Research of Agriculture Faculty, Universitas Padjadjaran. This experiment used a randomized block design consisting of ten treatments and three replications The treatments consisted with two doses of biofertilizers (50 kg ha-1 and 75 kg ha-1) and three doses of N,P,K fertilizers (100%, 75%, and 50% from recommended doses). Biofertilizers contains N-fixing bacteria and phosphate solubilizing microbes. The result of experiment showed that application of biofertilizers 75 kg ha-1 and biofertilizers 50 kg ha-1 + N, P, K 50% increased soil phosphorus availability. The application of biofertilizers increased P-uptake up to 81%. Futhermore, biofertilizers 75 kg ha-1 + N, P, K 75% increased the yield of upland rice by 164%.

scholarly journals Influence of Azospirillum brasilense associated with silicon and nitrogen fertilization on macronutrient contents in corn

2020 ◽  
Vol 5 (1) ◽  
pp. 126-137 ◽  
Author(s):  
Fernando Shintate Galindo ◽  
Marcelo Carvalho Minhoto Teixeira Filho ◽  
Salatiér Buzetti ◽  
Willian Lima Rodrigues ◽  
Guilherme Carlos Fernandes ◽  
...  
Keyword(s):  
Azospirillum Brasilense ◽  
Soil Acidity ◽  
Block Design ◽  
Nutrient Content ◽  
Biotic And Abiotic Stresses ◽  
No Till ◽  
Randomized Block Design ◽  
N Rates ◽  
Biological Nitrogen ◽  
N Use

AbstractInformation regarding the interaction between biological nitrogen fixation (BNF) with Azospirillum brasilense inoculation and the use of silicon (Si) is needed. Silicon exerts numerous benefits on grasses, especially when the plants are subjected to biotic and abiotic stresses, affecting plant nutrition. The aim of this research was to determine if there is a synergistic effect between the inoculation with A. brasilense and Si use, on macro-nutrient content in corn shoot and root. The field trial was performed in Selvíria, Brazil, on a Typic Rhodic Hapludox soil under no-till system. The experimental design was a completely randomized block design with four replicates arranged in a 2 × 5 × 2 triple factorial arrangement, consisting of two soil acidity corrective sources (dolomitic limestone and Ca and Mg silicate as sources of Si); five N doses (0, 50, 100, 150 and 200 kg ha-1 applied in topdressing); with and without seed inoculation with A. brasilense. The inoculation favored N concentration in shoots and increased the N and S concentration even when associated to high N rates in topdressing. The Si as Ca and Mg silicate associated with the increment of N rates does not promote an increase in the macronutrients uptake. Although it did not favor the N use, the Si also did not negatively affect the benefits of the A. brasilense.

Chemical Soil Attributes, Accumulation of Foliar Macronutrients and Productivity of the 'Vitória' Pineapple Plant Fertilized with Urea and Chicken Manure

2019 ◽  
pp. 1-10
Author(s):  
Francisco de Assis Pereira Leonardo ◽  
Walter Esfrain Pereira ◽  
Thiago Jardelino Dias ◽  
Joana Gomes de Moura ◽  
Mário Leno Martins Véras ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Nitrogen Fertilization ◽  
Block Design ◽  
Chicken Manure ◽  
Organic Fertilization ◽  
Composite Matrix ◽  
Soil P ◽  
Randomized Block Design ◽  
Chemical Soil ◽  
Central Composite

The pineapple plant cultivar 'Vitória' is resistant to Fusarium and it presents similar characteristics to the cultivars 'Pérola' and 'Smoot Cayene'. However, the expansion of this new cultivar depends on the development of research on several aspects, among them, fertilization. In this context, the experiment was carried out with the objective of evaluating soil fertility, foliar macronutrient contents and productivity in 'Vitória' pineapple plant in function of nitrogen fertilization with urea and chicken manure. The experiment was conducted under randomized block design, with four replications. Treatments consisted of five doses of N, in two sources of organic fertilization (chicken manure ) and mineral (urea), totaling nine combinations generated through the Central Composite Matrix of Box: T1 , 44 and 2.91; T 2 , 152 and 0; T 3 , 0 and 10; T 4, 44 and 17.1; T 5 , 260 and 2.91; T6 , 152 and 10; T7 , 152 and 20; T8 , 304 and 10; and T9, 260 and 17.1 g plant-1. At 6 months after planting the chicken manure decreased H + A1, Mg and CEC levels, and at 23 months after planting increased soil P, SB e CEC levels.  In the two seasons, Urea has reduced pH and it reduced Mg, SB and CEC contents at six months after planting. Doses of urea between 10 and 12 g plant-1 are recommended in order to maximize the productivity of the pineapple plant.

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