Sugarcane Breeding Institute, Coimbatore, India Effect of Different Levels of Drought during the Formative Phase on Growth Parameters and its Relationship with Dry Matter Accumulation in Sugarcane

2000 ◽  
Vol 185 (2) ◽  
pp. 83-89 ◽  
Author(s):  
P. Ramesh
Keyword(s):  
Dry Matter ◽  
Growth Parameters ◽  
Dry Matter Accumulation ◽  
Sugarcane Breeding ◽  
Sugarcane Breeding Institute ◽  
Different Levels

Analysis of the effect of n fertilisation on the growth dynamics of winter wheat varieties using the hunt-parsons model

2011 ◽  
Vol 59 (1) ◽  
pp. 35-45
Author(s):  
E. Sugár ◽  
Z. Berzsenyi
Keyword(s):  
Winter Wheat ◽  
Leaf Area ◽  
Dry Matter ◽  
Growth Parameters ◽  
Growth Dynamics ◽  
Dry Matter Accumulation ◽  
Wheat Varieties ◽  
Mean Values ◽  
N Treatment ◽  
Winter Wheat Varieties

The effect of nitrogen (N) fertilisation on the growth of winter wheat varieties was examined in three diverse years using the functional method of growth analysis. The main plot in the two-factorial, split-plot experiment was the N treatment and the subplot the variety. The wheat varieties Mv Toborzó (extra-early), Mv Palotás (early) and Mv Verbunkos (mid-early) were treated with N rates of 0, 80, 160 and 240 kg N ha−1 (N0, N80, N160, N240). The Hunt-Parsons (HP) program fitted a third-degree exponential function to the dry matter and leaf area data. In 2007 and 2008 dry matter accumulation continued up to the N240 rate and in 2009 to the N160 rate. In all three years the highest value was recorded for Mv Verbunkos (4.62 g plant−1 in 2007, 4.63 g in 2008 and 4.51 g in 2009). The highest value of maximum leaf area (237.5 cm2) was found for Mv Verbunkos in the N240 treatment. The maximum values of leaf area in each N treatment, averaged over years and varieties (cm2 plant−1), were as follows: N0: 86.2; N80: 141.0; N160: 164.0; N240: 173.1. The parameter AGRmean exhibited the highest value (8.04 g day−1 102) in the N160 treatment, while among the varieties Mv Verbunkos had the highest mean value (7.18 g day−1 102). The highest value of RGRmean was achieved by Mv Toborzó in the N160 treatment in 2009 (3.94 g g−1 day−1 102). The value of NARmean increased up to fertiliser rates of N160 and N240, with mean values (g m−1 day−1) of N0: 2.35, N80: 2.44, N160: 2.53 and N240: 2.47. The highest value of NAR (3.29 g m−1 day−1) was obtained for Mv Palotás in the N160 treatment in 2008. On average the greatest value of LARmax was recorded in the N160 treatment (172.8 cm2 g−1), while the highest absolute value (213.6 cm2 g−1) was achieved by Mv Toborzó in 2008. The unfavourable effect of the drought in 2007 was clearly reflected in the values of the growth parameters.

scholarly journals ACÚMULO DE MASSA SECA E MACRONUTRIENTES PELO SORGO SACARINO EM DIFERENTES NÍVEIS DE ADUBAÇÃO NPK

2019 ◽  
Vol 18 (1) ◽  
pp. 1-13
Author(s):  
FLAVIA CRISTINA DOS SANTOS ◽  
LEANDRO FLÁVIO CARNEIRO ◽  
MANOEL RICARDO DE ALBUQUERQUE FILHO ◽  
MÔNICA MATOSO CAMPANHA ◽  
MARIA LÚCIA FERREIRA SIMEONE ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Sorghum Bicolor ◽  
Dry Matter ◽  
Dry Mass ◽  
Dry Matter Accumulation ◽  
Technological Level ◽  
Low Levels ◽  
Different Levels ◽  
Sorghum Bicolor L ◽  
Npk Fertilization

RESUMO – Com o objetivo de determinar o acúmulo de massa seca e macronutrientes ao longo do ciclo do sorgosacarino BRS 506, em diferentes níveis de adubação NPK, foram instalados experimentos por dois anos, em Latossolo,sob irrigação. Utilizou-se o delineamento experimental de blocos ao acaso, com quatro repetições. Os tratamentosforam de quatro níveis tecnológicos, relacionados à adubação N-P2O5-K2O, em kg ha-1: muito baixo (NPK = 0-0-0);baixo (NPK = 80-50-80); médio (NPK = 160-100-160) e alto (NPK = 240-150-240). Avaliaram-se o acúmulo demassa seca e macronutrientes aos 30, 50, 70, 90 e 110 dias após plantio (DAP). No geral, foram ajustados modelospolinomiais de segundo grau. O acúmulo de massa seca e macronutrientes apresentou taxa inicial baixa, até cerca de30 DAP, e a partir daí aumentou consideravelmente, até próximo à maturação, para então se estabilizar e decrescer.No geral, o acúmulo de massa seca foi maior no nível tecnológico alto e o acúmulo de nutrientes não diferiu entre osníveis médio e alto, sendo menor para os níveis baixo e muito baixo. Recomendam-se 160-100-160 kg ha-1 de N-P2O5-K2O para produtividade satisfatória do sorgo sacarino e manutenção da fertilidade do solo, além de outras práticas quefavoreçam a ciclagem de nutrientes.Palavras-chave: Sorghum bicolor (L.) Moench, nutrição, fertilização, absorção de nutrientes.DRY MASS AND MACRONUTRIENTS ACCUMULATION OF SWEET SORGHUMIN DIFFERENT LEVELS OF NPK FERTILIZATIONABSTRACT – In order to determine the dry mass and macronutrients accumulation along the sweet sorghum BRS 506cycle, at different levels of NPK fertilization, experiments were carried out for two years in Oxisol, under irrigation.The experimental design was a randomized complete block with four replicates. The treatments comprised fourlevels of soil fertility, related to N-P2O5K2O fertilization, in kg ha-1: very low (NPK = 0-0-0); low (NPK = 80-50-80);medium (NPK = 160-100-160) and high (NPK = 240-150-240). Dry matter accumulation and macronutrients wereevaluated at 30, 50, 70, 90 and 110 days after planting (DAP). In general, polynomial models of the second degree wereadjusted. Dry matter and macronutrient accumulation presented a low initial rate, until 30 DAP, from there it increasedconsiderably until near the maturation, then stabilizing and decreasing. In general, dry mass accumulation was higherat high technological level and nutrient accumulation did not differ between medium and high levels, being lower forlow and very low levels. It is recommended to apply 160-100-160 kg ha-1 of N-P2O5-K2O for a satisfactory productivityof sorghum and maintenance of soil fertility, in addition to other practices favoring the nutrients cycling.Keywords: Sorghum bicolor (L.) Moench, nutrition, fertilization, nutrient uptake.

scholarly journals Dry matter accumulation in genotypes of bean submitted to different levels of nitrogen

2009 ◽  
Vol 33 (4) ◽  
pp. 985-992
Author(s):  
Juliano Ribeiro Araújo ◽  
Magno Antonio Patto Ramalho ◽  
Adriano Teodoro Bruzi ◽  
Ângela de Fátima Barbosa Abreu
Keyword(s):  
Dry Matter ◽  
Block Design ◽  
Dry Mass ◽  
Nitrogen Fertilizers ◽  
Dry Matter Accumulation ◽  
Factorial Structure ◽  
Phaseolus Vulgaris L ◽  
N Source ◽  
Randomized Block Design ◽  
Different Levels

The objective of this study was to verify the response of dry matter accumulation in bean lines (Phaseolus vulgaris L.) to different levels of nitrogen fertilizers. Six genotypes ('BRSMG Majestoso', 'Pérola', MA-I-18.13, 'Ouro Negro', 'BRSMG Talismã', and MA-I-2.5) were evaluated in Lavras, testing three N levels (0, 60, and 120 kg/ha) and using ammonium sulphate as N source. The experimental design adopted was the randomized block design in a 6 x 3 factorial structure with three replications and the plots were composed of five 5-m rows. The seeds were sown in November 2005 and July 2006. Total dry mass of five competitive plants was evaluated after 35 days from sowing, harvested from a pre-determined place in the useful area of the plots. This process was repeated every ten days until the harvest. The grain yield was also evaluated in one of the rows of the useful area of the plots. It was observed that regarding the dry mass accumulation, the genotypes did not present different responses at the N levels and the average increase per kg/ha applied N was 6.75 kg/ha grains. The genotype BRSMG Majestoso is the most responsive, with 14.4 kg/ha grains per kg applied N whereas the most tolerant is the MA-I-2.5 with1.8 kg/ha grains per kg N.

scholarly journals Effect of Planting g Pattern and Organic Nutrient Sources on Performance of Maize in Maize-Cowpea Intercropping system

2021 ◽  
Vol 8 (01) ◽  
Author(s):  
VIKRAM KUMAR ◽  
A K SINGH ◽  
LALA I P RAY
Keyword(s):  
Dry Matter ◽  
Growth Parameters ◽  
Dry Matter Accumulation ◽  
Nutrient Source ◽  
Planting Pattern ◽  
Yield Attributes ◽  
Weed Biomass ◽  
Nutrient Sources ◽  
Biological Yield ◽  
Organic Nutrients

A field experiment was conducted to evaluate the effect of planting pattern and organic nutrients sources on maize in an intercropping system with cowpea. The treatment consists of four planting pattern (Sole maize, Sole cowpea, 1:1 maize + cowpea and 2:2 paired row maize + cowpea) and four nutrient sources (inorganic, FYM, ambrosia weed biomass and 50% through FYM + 50% through ambrosia weed biomass) allocated to main and sub plots, respectively. Growth parameters of maize did not vary significantly due to planting various planting patterns with cowpea except for dry matter accumulation at harvest. Highest grain, stover and biological yield of maize was also reported from sole maize which was at par with paired row planted maize but significantly higher over the maize intercropped in 1:1 planting pattern with cowpea. All the growth parameters and yield attributes of maize also differed significantly due to application of various sources of plant nutrients except for plant height at 30 DAS, CGR and RGR during 30-60 DAS and cobs per plant and cob length. Maximum grain yield in maize was recorded from inorganic nutrient source which was at par with combined nutrient application through FYM and ambrosia. Protein content ingrain remain at par but nutrient uptake varied markedly and follow the trends of grain and biological yields both due to planting pattern and nutrient sources.

scholarly journals Effect of planting techniques and weed control treatments on growth and yield of wheat

2017 ◽  
Vol 9 (3) ◽  
pp. 1534-1539
Author(s):  
Sudesh Devi ◽  
V.S. Hooda ◽  
Jagdev Singh ◽  
Anil Kumar
Keyword(s):  
Weed Control ◽  
Dry Matter ◽  
Growth Parameters ◽  
Growth And Yield ◽  
Row Spacing ◽  
Dry Matter Accumulation ◽  
Yield Attributes ◽  
Net Returns ◽  
Free Treatment ◽  
Weed Flora

A field experiment was conducted to study the effect of different planting techniques (conventional drill sowing at 16, 18 and 20 cm row spacing and bed planting with two and three rows in main plots) and weed control treatments (pinoxaden 50 g/ha, ready-mix (RM) of carfentrazone and metsulfuron 25 g/ha and pinoxaden 50 g/ha + RM of carfentrazone and metsulfuron 25 g/ha in subplots) on growth and productivity of wheat. The grain yield under row spacing 18 cm (53.30 q/ha), and 20 cm (52.02 q/ha), and three rows bed planting (51.96 q/ha) were recorded statistically at par with each other and significantly higher than 16 cm (49.37 q/ha) row spacing and two row bed planting (48.53 q/ha). Gross returns (Rs. 95637/ha) and net returns (Rs. 43929/ha) and B:C ratio (1.85) were record-ed higher under 18 cm row spacing compared to other planting techniques. Tank mixed application of pinoxaden 50 g/ha + RM of carfentrazone and metsulfuron 25 g/ha applied at 35 days after sowing (DAS) controlled both grassy and broad leaved weeds effectively with lower values of weed dry matter accumulation (7.67 g/ha) and produced growth parameters, yield attributes and yield (53.16 q/ha) at par with weed free treatment. In light of the results to maximise productivity, 18 cm row spacing may be practiced and tank mix application of pinoxaden (50 g/ha) + RM of carfentrazone and metsulfuron (25 g/ha) is recommended to reduce losses due to complex weed flora in wheat.

Effect of different sources of nitrogen on yield and yield attributes of transplanted rice under east and south coastal plains of Odisha

2020 ◽  
Vol 57 (1) ◽  
pp. 57-63
Author(s):  
Abhijit Pradhan ◽  
Biswajit Behera ◽  
Md Riton Chowdhury ◽  
JML Gulati
Keyword(s):  
Dry Matter ◽  
Nutrient Management ◽  
Growth Parameters ◽  
Block Design ◽  
Soil Health ◽  
Crop Productivity ◽  
Dry Matter Accumulation ◽  
Yield Attributes ◽  
Transplanted Rice ◽  
Different Sources

Integrated nutrient management (INM) plays an important role to maintain the soil health and improve crop productivity. A field experiment was conducted to study the effect of integrated nitrogen application on transplanted rice. The present investigation was laid out in randomised block design with 10 treatments. Growth parameters like plant height, dry matter accumulation varied significantly among different treatments and the highest value was recorded under the treatment T6 (75% N through fertilizer + 25% N through vermicompost with full dose of P and K). All the yield attributing characters like panicles m-2, grains panicle-1 significantly varied under different treatments. Significantly, higher tiller m-2, grain panicle-1 and panicle length were recorded under T6. Similarly, significantly highest grain yield (4.93 t ha-1) and straw yield (6.01 t ha-1) were observed under T6. Thus, substituting a part of nitrogen fertilizer with organic manure improves soil quality and sustains the crop productivity.

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