Growth and NPK uptake of high-yielding cotton grown at different nitrogen levels in a permanent-plot experiment

1987 ◽  
Vol 103 (1) ◽  
pp. 39-44 ◽  
Author(s):  
J. Halevy ◽  
A. Marani ◽  
T. Markovitz
Keyword(s):  
Permanent Plot ◽  
Nitrogen Levels ◽  
Npk Uptake ◽  
Plot Experiment

scholarly journals Effects of NAA and different nitrogen levels on nutrient uptake by BARI Gom-26 (Triticum aestivum L.)

2016 ◽  
Vol 42 (1) ◽  
pp. 69-76
Author(s):  
Saiful Islam ◽  
Nargis Jahan
Keyword(s):  
Grain Filling ◽  
N Fertilizer ◽  
Flowering Stage ◽  
K Uptake ◽  
N Content ◽  
Nitrogen Levels ◽  
Filling Stage ◽  
P Content ◽  
Npk Uptake ◽  
Grain Filling Stage

An experiment was conducted to evaluate the effects of NAA (0, 25, 50 ppm) at varying nitrogen levels (0, 50, 75, 100 % of the recommended dose) on nitrogen (N), phosphorus (P) and potassium (K) uptake by shoot and root and percentage of total NPK uptake by BARI Gom-26 at flowering and grain filling stage. Application of NAA at varying nitrogen levels had significant effect on P and K uptake by shoot and root at both stages, whereas, the N content of shoot at flowering stage and of root at the grain filling stage were non-significant.At both the stages, K content of root increased following all the treatments. At flowering and grain filling stage, P content of root and shoot increased and decreased due to different treatments. The maximum percentage of total NPK uptake was recorded from K followed by N and P respectively at both stages. In majority cases there was a decreasing trend in percentage uptake of N and P at grain filling stage compared with flowering stagewhereas, the trend was almost reverse in case of K. The N content of grain increased following all the treatments, the maximum being due to 25 ppm NAA in combination with 75 % N-fertilizer. Only decrease in P content of grain was recorded when 25 ppm NAA without any N-fertilizer was applied. In case of K content, 50 ppm NAA without any N-fertilizer resulted the only decrease. The highest nitrogen use efficiency (NUE) by total plant was also recorded from 50 ppm NAA in combination with 50 % N-fertilizer at flowering stage, whereas, from 25 ppm NAA in combination with 75 % N-fertilizer at grain filling stage.J. Asiat. Soc. Bangladesh, Sci. 42(1): 69-76, June 2016

scholarly journals EVALUATION AND PRODUCTION OF IRISH POTATO IN GEORGIA

HortScience ◽  
1990 ◽  
Vol 25 (8) ◽  
pp. 860a-860
Author(s):  
H.L. Bhardwaj ◽  
A.S. Bhagsari ◽  
K.G. Haynes
Keyword(s):  
Significant Variation ◽  
Tuber Yield ◽  
Irish Potato ◽  
N Fertilizer ◽  
Optimum Rate ◽  
Nitrogen Levels ◽  
The Mean ◽  
N Rates ◽  
Plot Experiment ◽  
Spring Planting

Two experiments, each with 100 (Solanum tuberosum L.) genotypes, were planted to compare fall-planted (August 22, 1988) crop with spring-planted (March 14, 1989) crop and to identify high yielding genotypes for each planting. Significant variation for tuber yield, 90-100 days after planting, was observed in both experiments. The mean yield of spring planting (25.8 Mg/ha with a range of 9.8 to 49.5 Mg/ha) was significantly higher than mean yield of fall-planting (18.2 Mg/ha with a range of 8.5 to 30.2 Mg/ha). The five highest yielding genotypes in fall planting were: B-0245-15, B-0175-2, B-0242-2, Kennebec, and Norchip whereas the five highest yielding genotypes in spring planting were: B-0180-36, B-9792-88, B-0179-17, B9988-7, and Belchip. An additional split-split-plot experiment with 4 replications was initiated March 14, 1989 to identify optimum rate of N fertilizer and spacing within rows. This experiment consisted of three Nitrogen levels (0, 125, and 250 kg/ha), three genotypes (Atlantic, Kennebec, and La Rouge), and two spacings between plants (10 and 20 cm). All plots received 120 kg P and 170 kg K/ha. Data showed that N rates of 125 Kg/ha and 250 kg/ha gave identical tuber yields (50 Mg/ha). Closer spacing of 10 cm within rows resulted in significantly higher tuber yield (46 Mg/ha) as compared to 20 cm spacing (33 Mg/ha).

Yield and Seed quality of barley (Hordeum vulgare L.) as affected by variety, nitrogen level and harvesting time

2014 ◽  
Vol 2 (2) ◽  
pp. 93-100
Author(s):  
Shahnaj Yesmina ◽  
Moushumi Akhtarb ◽  
Belal Hossain
Keyword(s):  
Grain Yield ◽  
Seed Weight ◽  
Seed Quality ◽  
Quality Parameters ◽  
Nitrogen Level ◽  
Yield Attributes ◽  
Harvesting Time ◽  
Nitrogen Levels ◽  
Vigour Index

The experiment was conducted to find out the effect of variety, nitrogen level and harvesting time on yield and seed quality of barley. The treatments used in the experiment consisted of two varieties viz. BARI Barley 4 and BARI Barley 5, three harvesting time viz. 35, 40 and 45 Days after Anthesis (DAA) and nitrogen levels viz. 0, 70, 85 and 100 kg N ha-1 . The experiment was laid out in a spilt- spilt-plot design with three replications assigning the variety to the main plot, harvesting time to the sub-plots and nitrogen level to the sub-sub plots. Variety had significant effects on the all yield attributes except fertile seeds spike-1 . Seed quality parameters viz. normal seeds spike-1 , deformed seeds spike-1 , germination (%) and vigour index were statistically significant. The variety BARI Barley 5 produced higher grain yield and seed quality than BARI Barley 4. Grain yield from BARI Barley 5 and BARI Barley 4 were 4.59 t ha-1 and 4.24 t ha-1 , respectively. Significantly, the highest 1000-seed weight (46.90 g) was produced by BARI Barley 5 than (37.90 g) BARI Barley 4. The result revealed that harvesting time had significant effect on yield and yield attributes and seed quality parameters. Seed yield was highest (4.65 t ha-1 ) when the crop harvested at 40 DAA and it was increased linearly from 35 DAA. Maximum quality seed and 1000-seed weight (43.20 g) was obtained when the crop harvested at 40 DAA. All the yields, yield attributes and seed quality parameters were significantly influenced by nitrogen levels. The highest grain yield (5.14 t ha-1 ) was obtained when BARI Barley 5 variety was fertilized by 100 kg N ha-1 and the lowest (3.14 t ha-1 ) was obtained from control treatments. Normal seeds spike-1 , vigour index, germination (%) were better at 85 kg N ha-1 in variety of BARI Barley 5 than BARI Barley 4. So it can be concluded that BARI Barley 5 showed better result when fertilized with 100 kg N ha-1 and harvested at 40 DAA for getting maximum yield and 85 kg N ha-1 and harvested at 40 DAA for getting better quality seed.

Agronomic performance of autumn- and winter-cropped Indian mustard (Brassica juncea L.) in response to varying levels of nitrogen fertiliser

2020 ◽  
pp. 83-95
Author(s):  
Bent Al-Hoda Asghari ◽  
Mohsen Yousefi ◽  
Katarzyna Możdżeń ◽  
Joanna Puła ◽  
Peiman Zandi ◽  
...  
Keyword(s):  
Brassica Juncea ◽  
Seed Yield ◽  
Agronomic Traits ◽  
Growth Parameters ◽  
Indian Mustard ◽  
Climatic Conditions ◽  
Plant Seed ◽  
Nitrogen Fertiliser ◽  
Nitrogen Levels ◽  
Cropping Seasons

Indian mustard (Brassica juncea L. Czern) cultivation is suggested for regions with short seasons and low rainfall. Although there have been many studies conducted on agronomic production of mustard in Iran, the information regarding the interactive impact of cropping seasons and nitrogen fertiliser on growth characteristics and yield quality of mustard plant is still insufficient and requires further investigation. This study focused on the possible implications of different cropping seasons and different nitrogen levels on selected agronomic traits in mustard. In this experiment, five different doses of nitrogen and two sowing periods were used to assess for their combined effects on the growth parameters, seed yield and agronomic characteristics of mustard in the semi-arid climatic conditions of Takestan. The results revealed that cultivation seasons and nitrogen rates had a significant effect on plant height, biomass yield, number of siliques per plant, seed oil content and seed yield.

SUPERMET 2205

Alloy Digest ◽  
2004 ◽  
Vol 53 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Low Temperature ◽  
Tensile Properties ◽  
Stainless Steels ◽  
Ferritic Stainless Steels ◽  
Nitrogen Levels ◽  
Temperature Performance ◽  
Low Temperature Performance

Abstract Supermet 2205 is a manual metal arc (MMA) electrode with enhanced chromium, molybdenum, and nitrogen levels. It is used for welding standard 22% Cr duplex austenitic/ferritic stainless steels. This datasheet provides information on composition, microstructure, hardness, and tensile properties as well as fracture toughness. It also includes information on low temperature performance as well as joining. Filing Code: SS-903. Producer or source: Metrode Products Ltd.

QTL Analysis for Plant Height and Heading Date in Rice under Two Nitrogen Levels

2011 ◽  
Vol 37 (9) ◽  
pp. 1525-1532 ◽  
Author(s):  
Yue FENG ◽  
Rong-Rong ZHAI ◽  
Li-Yong CAO ◽  
Ze-Chuan LIN ◽  
Xing-Hua WEI ◽  
...  
Keyword(s):  
Plant Height ◽  
Qtl Analysis ◽  
Heading Date ◽  
Nitrogen Levels

Productivity of rice varieties under varied nitrogen levels

Green Farming ◽  
2020 ◽  
Vol 11 (4-5) ◽  
pp. 324
Author(s):  
E. ARUNA ◽  
A. PRATAP KUMAR REDDY ◽  
G. KARUNA SAGAR
Keyword(s):  
Rice Varieties ◽  
Nitrogen Levels
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