Influence of applied nitrogen on growth and tissue nutrient concentration in the medicinal plant Ajowain (Trachyspermum ammi)

2006 ◽  
Vol 46 (3) ◽  
pp. 425 ◽  
Author(s):  
M. Ashraf ◽  
A. Noman
Keyword(s):  
Seed Yield ◽  
Nutrient Concentration ◽  
Negative Association ◽  
Plant Tissues ◽  
Nutrient Accumulation ◽  
Soil N ◽  
N Level ◽  
Trachyspermum Ammi ◽  
K Concentration ◽  
Tissue Nutrient Concentration

Growth performance and nutrient accumulation in Ajowain [Trachyspermum ammi (L.) Sprague] under varying levels of nitrogen were examined in a field experiment. Sixty-three-day-old plants were supplied with varying levels of N, i.e. 0, 30, 60, and 90 kg N/ha soil. Maximum biomass was recorded at 60 kg N/ha, whereas maximum seed yield was recorded at 60 and 90 kg N/ha. Shoot and root P and N increased with an increase in external N levels applied, reaching a maximum at 90 kg N/ha. However, tissue K concentration remained almost unchanged at varying soil N levels. Although accumulation of N and P in both shoots and roots of Ajowain increased consistently with an increase in soil N, this pattern of increase in the levels of 3 nutrients in plant tissues had a negative association with the growth of the crop, particularly at the higher N level (90 kg N/ha) where seed yield per plant was almost equal to that at 60 kg N/ha.

The effect of applied nitrogen on the growth and nutrient concentration of Kalonji (Nigella sativa)

2005 ◽  
Vol 45 (4) ◽  
pp. 459 ◽  
Author(s):  
M. Ashraf ◽  
Q. Ali ◽  
E. S. Rha
Keyword(s):  
Field Experiment ◽  
Seed Yield ◽  
Soil Nitrogen ◽  
Nutrient Concentration ◽  
Nigella Sativa ◽  
Negative Association ◽  
Plant Tissues ◽  
Nutrient Accumulation ◽  
Maximum Biomass ◽  
Nitrogen Levels

Growth and nutrient accumulation in Kalonji (Nigella sativa L.) under varying levels of nitrogen, were examined in a field experiment. Sixty-three-day-old plants were supplied with varying levels of nitrogen of 0, 30, 60 and 90 kg N/ha soil. Maximum biomass and seed yield were recorded at 30 and 60 kg N/ha. The soil nitrogen level, 90 kg/ha, proved to be ineffective in promoting growth of Kalonji. Accumulation of nitrogen, potassium and phosphorus in both shoots and roots of Kalonj increased consistently with increase in soil nitrogen. However, this pattern of increase in the levels of 3 nutrients in plant tissues had a negative association with the growth of the crop, particularly at the supra-optimal nitrogen levels (60 and 90 kg N/ha).

Effects of soil drought during the generative development phase on seed yield and nutrient uptake of faba bean (Vicia faba)

1997 ◽  
Vol 48 (4) ◽  
pp. 447 ◽  
Author(s):  
M. Z. Xia
Keyword(s):  
Vicia Faba ◽  
Seed Yield ◽  
Faba Bean ◽  
Seed Weight ◽  
Dry Matter ◽  
Nutrient Concentration ◽  
N Uptake ◽  
Nutrient Concentrations ◽  
Soil Drought ◽  
K Concentration

The effects of periods of drought during different phases of reproductive growth of faba bean (Vicia faba L.) cv. Xichang Dabai were investigated in a pot experiment at Xichang Agricultural College, China. Parameters were total dry matter; seed yield; yield components; concentrations of nitrogen, phosphorus, and potassium; and total uptake in different organs. All drought treatments decreased total dry matter production and seed yield per plant. Plants subjected to drought from initiation of pod-set to full pod-set (stage D4) produced 32% less total dry matter and 45% less seed yield than the irrigated control. Mean seed weight was a relatively stable yield component. Statistical analysis indicated that only plants subjected to drought at stages D4 and D5 (drought from full pod-set to maturity) had a significantly (P < 0·05) lower mean seed weight than the control. The nutrient concentration was generally high in the younger or more active organs of faba bean, and comparing the nutrients, the N concentration in leaves, stems, flowers, pods, and grain was greatest, followed by K concentration, and P concentration was least. All soil drought treatments decreased the nutrient concentration in various organs after 17–19 days of drought. However, the decreases at maturity were less clear, except the nutrient concentrations in stems and leaves. Water deficit significantly decreased total grain nutrients per plant, the decreases being 34–45% for N uptake, 34–47% for P uptake, and 33–46% for K uptake. Simple linear correlations with the P and K concentration in leaves at maturity and number of pods and seeds per plant gave a correlation coefficient (r) of 0·804–0·874.

scholarly journals Actinidia arguta Leaf as a Donor of Potentially Healthful Bioactive Compounds: Implications of Cultivar, Time of Sampling and Soil N Level

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3871
Author(s):  
Jan Stefaniak ◽  
Barbara Łata
Keyword(s):  
Antioxidant Capacity ◽  
Plant Development ◽  
Growing Season ◽  
Trolox Equivalent Antioxidant Capacity ◽  
Total Phenolic ◽  
Development Phase ◽  
Soil N ◽  
Actinidia Arguta ◽  
N Level ◽  
N Fertility

The aim of this study was to assess the enzymatic and non-enzymatic antioxidant status of kiwiberry (Actinidia arguta) leaf under different N regimes tested three times in field conditions during the 2015 growing season in two cultivars (‘Weiki’ and ‘Geneva’). Leaf total antioxidant capacity using ABTS, DPPH and FRAP tests was evaluated in the years 2015 to 2017, which experienced different weather conditions. Both cultivars exhibited a significant fall in leaf L-ascorbic acid (L-AA) and reduced glutathione (GSH) as well as global content of these compounds during the growing season, while total phenolic contents slightly (‘Weiki’) or significantly (‘Geneva’) increased. There was a large fluctuation in antioxidative enzyme activity during the season. The correlation between individual antioxidants and trolox equivalent antioxidant capacity (TEAC) depended on the plant development phase. The study revealed two peaks of an increase in TEAC at the start and end of the growing season. Leaf L-AA, global phenolics, APX, CAT and TEAC depended on the N level, but thiol compounds were not affected. Over the three years, TEAC decreased as soil N fertility increased, and the strength of the N effect was year dependent. The relationship between leaf N content and ABTS and FRAP tests was highly negative. The antioxidant properties of kiwiberry leaves were found to be closely related to the plant development phase and affected by soil N fertility.

scholarly journals Effect of Nitrogen Fertilizer and Fruit Positions on Fruit and Seed Yields of Okro (Abelmoschus Esculentus L. Moench)

2016 ◽  
Vol 6 (1) ◽  
pp. 39
Author(s):  
Y. Zubairu ◽  
J. A. Oladiran ◽  
O. A. Osunde ◽  
U. Ismaila
Keyword(s):  
Seed Yield ◽  
Seed Weight ◽  
Block Design ◽  
Mother Plant ◽  
Nitrogen Levels ◽  
N Level ◽  
University Of Technology ◽  
Randomized Complete Block Design ◽  
Cropping Seasons ◽  
Seed Yields

Study was conducted in 2006 and 2007 cropping seasons at the experimental field of Federal University of Technology, Minna (9o 401N and 6o 301E), in the Southern Guinea Savanna of Nigeria to determine the effects of N fertilizer and the fruit positions on fruit and seed yield of okro. The treatment comprised factorial combination of five nitrogen levels (0, 30, 60, 90 and 120 kg/ha) and five fruit positions on a mother-plant (3, 5, 7, 9 and 10) which were replicated three times and laid in a Randomized Complete Block Design (RCBD). The results indicated that significant taller plants were recorded in the plots that received 120 kg N/ha while shorter plants were recorded in plots that received 0 N/ha in both years of the study. The higher N level of 120 kg/ha and lower fruit position of 3 significantly gave higher number of fruit yield while the yield decreased with decrease in N level and increase in fruit position on the mother-plant. Similarly, heavier fruits were recorded in lower fruit positions and higher N levels. The fruits formed at the lower position 3 and 5 produced more seeds with higher seed weight than those formed at the higher positions. The results also showed that significantly higher seed yield was recorded at N level of 120 kg/ha ?.

scholarly journals Valorization of a Bio-Stabilized Municipal Solid Waste Amendment for Faba Bean (Vicia faba L.) Fertilization

Agriculture ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1109
Author(s):  
Sara Martinez ◽  
Sara Sánchez-Moreno ◽  
Jose Luis Gabriel ◽  
Cristina Álvarez ◽  
Maria del Mar Delgado
Keyword(s):  
Municipal Solid Waste ◽  
Soil Properties ◽  
Solid Waste ◽  
Vicia Faba ◽  
Biomass Production ◽  
Seed Yield ◽  
Faba Bean ◽  
Nutrient Accumulation ◽  
Mineral Fertilization ◽  
Vicia Faba L

The valorization of municipal solid waste (MSW) can serve as an organic amendment in agriculture while reducing solid waste accumulation in the environment. This research aimed to evaluate the valorization of a bio-stabilized MSW amendment for the production of faba bean (Vicia faba L.) crop. For this purpose, biomass production and growth, as well as, seed yield and seed components, seed nutrient accumulation, plant pigments, soil properties, and microorganisms were evaluated in comparison with faba bean mineral fertilization in a greenhouse experiment. The results demonstrated that the bio-stabilized MSW amendment achieved similar biomass production, plant growth, seed yield, nitrogen and protein content, and pigment content as the mineral fertilization treatment. On the other hand, the organic fertilization did not exhibit significant effects on the yield components number of pods per plant, and number of seeds per pod, and nutrient accumulation in seeds with respect to mineral and control treatments in both soils. Sandy and clay soil properties were improved in the organic treatments in comparison with the control soils by increasing soil organic carbon, nitrogen, and other soil nutrients, and providing a suitable pH for faba bean growth. Additionally, biological activity was favored by applying this source of organic fertilizer, enriching the nematode community. Reusing bio-stabilized MSW for agronomical purposes can add value to this waste product, serving as an effective alternative to mineral fertilizers in faba bean cultivation.

Potassium and Nitrogen Fertilization Effects on Jiggs Bermudagrass Herbage Accumulation, Root-Rhizome Mass, and Tissue Nutrient Concentration

cftm ◽  
2017 ◽  
Vol 3 (1) ◽  
pp. cftm2017.04.0029 ◽  
Author(s):  
J.K. Yarborough ◽  
J.M.B. Vendramini ◽  
M.L.A. Silveira ◽  
L.E. Sollenberger ◽  
R.G. Leon ◽  
...  
Keyword(s):  
Nitrogen Fertilization ◽  
Nutrient Concentration ◽  
Fertilization Effects ◽  
Tissue Nutrient Concentration

Response of safflower (Carthamus tinctorius L.) to residual soil N following cotton (Gossypium spp.) in rotation in the San Joaquin Valley of California

2002 ◽  
Vol 138 (4) ◽  
pp. 395-402 ◽  
Author(s):  
E. S. BASSIL ◽  
S. R. KAFFKA ◽  
R. A. HUTMACHER
Keyword(s):  
Soil Profile ◽  
N Uptake ◽  
Carthamus Tinctorius ◽  
San Joaquin Valley ◽  
Safflower Seed ◽  
Residual Soil ◽  
Soil N ◽  
Oil Composition ◽  
N Level ◽  
Residual N

Deep-rooted crops used in rotation can improve the overall water and N use efficiencies of cropping systems and help minimize nitrate leaching to groundwater. Safflower (Carthamus tinctorius L.) is a deep-rooted annual crop grown in Mediterranean regions that might be useful for this purpose. Safflower's response to residual soil N measured to 2.7 m in the soil profile was evaluated in 1998 in field plots in the San Joaquin Valley, California, USA that were used previously for cotton over a 9-year period and had been fertilized with nine N rates from 0 to 230 kg N/ha. Residual soil NO3-N measured prior to safflower planting increased with prior cotton fertilization rates. Amounts present to a soil profile depth of 2.7 m varied from 760 to 2600 kg/ha. Safflower seed yield increased with increasing pre-plant residual NO3-N levels, from 1700 kg/ha in the control to 2200 kg/ha, and then declined to 1800 kg/ha at the largest residual N level. Oil per cent, and oil yield were affected by soil N only at the largest residual N level, while oil composition was not affected. Root growth and N uptake at depth increased in plots with larger amounts of residual N compared to those with less. Results suggest that N fertilization applied to safflower could be reduced or even eliminated following crops previously fertilized at economic levels. Residual N should be accounted in growers' management programmes.

Growth of Hydrilla (Hydrilla verticillata) in Hydrosoils of Different Composition

Weed Science ◽  
1984 ◽  
Vol 32 (3) ◽  
pp. 371-375 ◽  
Author(s):  
Kerry K. Steward
Keyword(s):  
Plant Growth ◽  
Biomass Production ◽  
Plant Biomass ◽  
Stem Elongation ◽  
Hydrilla Verticillata ◽  
Nutrient Content ◽  
Plant Tissues ◽  
Flowing Water ◽  
Soil N ◽  
Rooting Media

Hydrilla [Hydrilla verticillata(L. f.) Royle ♯ HYLLI] was cultured in flowing water in outside aquaria on rooting media differing in fertility and texture. Nutrient content was determined for rooting media at the beginning of the experiment and for plant tissues at harvest. Growth, as measured by rates of stem elongation, areal coverage of aquaria by plants, and biomass accrual, was highly related to N-, P-, and K-fertility of rooting media. Rooting media were the most important source of phosphorous since water supplies were not adequate to support plant growth. There was evidence of P-deficiencies in plants grown on infertile rooting media. Both N and K were adequately supplied from either water, rooting media, or both. Production of plant biomass was most closely related to P-levels in tissues which were closely related to supplies in rooting media. Pretest soil N (comparable to preestablishment conditions) was best related to biomass production, indicating that growth and establishment of hydrilla may be predictable through assessment of hydrosoil fertility. The need for sampling and analytical procedures to assess fertility is emphasized.

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