Effects of Water-Nitrogen Coupling on Dry Matter and Nutrient Accumulation of Flue-Cured Tobacco

2014 ◽  
Vol 1073-1076 ◽  
pp. 1620-1623
Author(s):  
Xiao Hou Shao ◽  
Mao Mao Hou ◽  
Jing Nan Chen ◽  
You Bo Yuan ◽  
Fu Zhang Ding
Keyword(s):  
Nitrogen Fertilizer ◽  
Dry Matter ◽  
Tobacco Plant ◽  
Dry Weight ◽  
Nutrient Content ◽  
Dry Matter Accumulation ◽  
Nutrient Accumulation ◽  
Irrigation Amount ◽  
Nitrogen Coupling ◽  
Weight Proportion

In order to explore the effects of water-nitrogen coupling on dry matter and nutrient accumulation of flue-cured tobacco, 9 treatments with different lowest limits and nitrogen fertilizer amount were designed, and the distribution and accumulation of dry matter and nutrient (N, P and K) of flue-cured tobaccos under water-nitrogen coupling treatments were observed. Results showed that: (1) High irrigation amount could not certainly increase the dry matter accumulation of tobacco root, but which was beneficial to the dry matter accumulation of whole tobacco plant. (2) Dry weight proportion of flue-cured tobacco leaves was highest, which was above 55% among the treatments. (3) Higher water and nitrogen promoted the nutrient accumulation of flue-cured tobaccos, nutrient content of W3N3, W3N2 and W2N2 was higher compared to other treatments.

scholarly journals Weed Interference on Growth and Leaf Nutrient Accumulation in Two Cassava Varieties

2020 ◽  
Vol 9 (1) ◽  
pp. 91
Author(s):  
Gustavo Moratelli ◽  
Silvio Douglas Ferreira ◽  
Hiago Canavessi ◽  
Emerson Fey ◽  
Marcos Antonio Sedrez Rangel ◽  
...  
Keyword(s):  
Dry Matter ◽  
Accumulation Rate ◽  
Block Design ◽  
Nutrient Content ◽  
Dry Mass ◽  
Dry Matter Accumulation ◽  
Nutrient Accumulation ◽  
Weed Interference ◽  
Randomized Complete Block Design ◽  
Cassava Varieties

The development of cassava varieties with more efficient nutrient absorption can prevent losses caused by weed competition. The objective of this study was to evaluate dry matter accumulation and leaf nutrient content in traditional and improved cassava varieties, with and without coexistence with weeds throughout the cycle. A randomized complete block design was used in a 2 x 2 x 11 factorial scheme with four replications. The first factor consisted of two varieties (Baianinha and Clone 56-03); the second factor was composed of the conditions with and without coexistence with weeds, and the third factor was 11 harvest periods. Coexistence with weeds reduced leaf contents of N (20.8% and 24.8%), P (26.7% and 4.6%) and K (27.1% and 12.6%) for 'Baianinha' and 'Clone 56-03', respectively. For coexistence with 'Baianinha', the period up to the maximum daily nutrient accumulation rate (N, P and K) ranged from 82 to 99 days after planting (DAP), while for 'Clone 56-03', coexistence in this period ranged from 80 to 88 DAP. The plants from the variety 'Clone 56-03' presented higher total dry mass and root dry mass accumulation, as well as higher leaf contents of N, P and K than the traditional cassava variety 'Baianinha', especially when in coexistence with weeds during the whole cycle.

scholarly journals Responses of Root Characteristic Parameters and Plant Dry Matter Accumulation, Distribution and Transportation to Nitrogen Levels for Spring Maize in Northeast China

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 308
Author(s):  
Yang Yu ◽  
Chunrong Qian ◽  
Wanrong Gu ◽  
Caifeng Li
Keyword(s):  
Surface Area ◽  
Nitrogen Fertilizer ◽  
Root Length ◽  
Dry Matter ◽  
Projection Area ◽  
Dry Matter Accumulation ◽  
Characteristic Parameters ◽  
High Nitrogen ◽  
Nitrogen Levels ◽  
Matter Transport

Improving nitrogen use efficiency is a significant scientific problem to be solved. Two maize hybrids JD27 (Jidan 27) and SD19 (Sidan 19) were selected to study the effects of nitrogen levels on root characteristic parameters and plant dry matter accumulation, distribution and transportation. We set five different nitrogen levels, which were nitrogen deficiency (000N), low nitrogen (075N), medium nitrogen (150N), high nitrogen (225N) and excessive nitrogen (300N). The results showed that the root length and root surface area of JD27 were significantly higher than those of SD19 under 075N. With the increase of nitrogen levels, the root difference among varieties gradually decreased. The root length, projection area, total surface area and total volume reached the maximum values at silking stage. The average root diameter kept stable or decreased slowly with the growth stage. The dry matter accumulation of JD27 was higher than that of SD19 at all growth stages. Increasing the amount of nitrogen fertilizer can promote the transport of dry matter to grain and improve dry matter transport efficiency after anthesis. Under the treatment of medium and high nitrogen fertilizer, maize was easy to obtain a higher yield, but excessive nitrogen fertilizer inhibited the increase of yield. This study provides theoretical and practical guidance for maize production techniques.

EFFECTS OF TEMPERATURE ON RATE AND DURATION OF KERNEL DRY MATTER ACCUMULATION OF MAIZE

1988 ◽  
Vol 68 (4) ◽  
pp. 935-940 ◽  
Author(s):  
M. TOLLENAAR ◽  
T. W. BRUULSEMA
Keyword(s):  
Growth Rate ◽  
Zea Mays ◽  
Dry Matter ◽  
Zea Mays L ◽  
Dry Weight ◽  
Controlled Environment ◽  
Dry Matter Accumulation ◽  
Linear Kernel ◽  
Effects Of Temperature ◽  
Kernel Growth

The response of rate and duration of kernel dry matter accumulation to temperatures in the range 10–25 °C was studied for two maize (Zea mays L.) hybrids grown under controlled-environment conditions. Kernel growth rates during the period of linear kernel growth increased linearly with temperature (b = 0.3 mg kernel−1 d−1 °C−1). Kernel dry weight at physiological maturity varied little among temperature treatments because the increase in kernel growth rate with increase in temperature was associated with a decline in the duration of kernel growth proportional to the increase in kernel growth rate.Key words: Zea mays L, period of linear kernel dry matter accumulation, controlled-environment conditions, kernel growth rate

scholarly journals Growth, yield and nutrient content of mungbean (Vigna radiata L.) in response to INM in eastern Uttar Pradesh, India

2018 ◽  
Vol 44 (3) ◽  
pp. 479-482 ◽  
Author(s):  
Yubaraj Dhakal ◽  
RS Meena ◽  
Nirmal De ◽  
SK Verma ◽  
Ajeet Singh
Keyword(s):  
Seed Yield ◽  
Harvest Index ◽  
Dry Matter ◽  
Uttar Pradesh ◽  
Growth Yield ◽  
Nutrient Content ◽  
Dry Matter Accumulation ◽  
Spad Value ◽  
Leaf Chlorophyll ◽  
Eastern Uttar Pradesh

Significant improvement in LAI, number of trifoliate, SPAD value of green leaf chlorophyll, dry matter accumulation, yield, harvest index (%) and nutrient content of mungbean were recorded due to application of 75% RDF + 2.5 t/ha vermicompost (VC) + Rhizobium (Rh)+ phosphorus solublizing bacteria (PSB), followed by 100% RDF + 2.5 t/ha VC and 100% RDF + Rh + PSB. The highest seed yield of mungbean was obtained with the application of 75% RDF + 2.5 t/ha VC + Rh + PSB (12.34 q /ha) followed by 100% RDF + 2.5 t/ha VC (12.05 q /ha) and 100% RDF + Rh+ PSB (11.95 q /ha).

scholarly journals Seasonal Partitioning of Leaf and Fruit Potassium and Fruit Dry Matter in French Prune Trees at Various Potassium Levels

1991 ◽  
Vol 116 (6) ◽  
pp. 981-986 ◽  
Author(s):  
F.J.A. Niederholzer ◽  
R.M. Carlson ◽  
K. Uriu ◽  
N.H. Willits ◽  
J.P. Pearson
Keyword(s):  
Dry Matter ◽  
Dry Weight ◽  
Fruit Growth ◽  
Growth Stages ◽  
Dry Matter Accumulation ◽  
Accumulation Rates ◽  
Mature Trees ◽  
Linear Relationships ◽  
Weight Yield ◽  
High K

A study was undertaken to determine the seasonal dynamics of leaf and fruit K content and the influence of tree K status and fruit growth on leaf and fruit K accumulation rates in French prune (Prunus domestics L. cv. d'Agen). Mature trees in a commercial orchard were treated with various rates of K2 SO4. (O to ≈20 kg/tree) in the fall. Fruit dry weight yield per tree at harvest and fruit K content were higher for high-K trees, but fruit percent K (by dry weight) was ≈1.0% for all trees. Leaf scorch and subsequent abscission severely reduced the canopy of K-deficient trees. Significant positive linear relationships between leaf and fruit K accumulation rates existed for the periods of 28 Apr.-28 May (May) and 28 May-7 July (June). A significant negative linear relationship existed between these two criteria from 7 July-3 Aug. (July). May (0.237 mg K per fruit-day) and July (0.267 mg K per fruit-day) mean fruit K accumulation rates were similar, but both were significantly higher (P = 0.001) than those for June (0.140 mg K per fruit-day). Mean leaf K accumulation rates for May (- 0.007 mg K per leaf-day) and July (-0.010 mg K per leaf-day) were similar, but both were significantly (P = 0.001) less than for June (0.005 mg K per leaf-day). Potassium per fruit accumulation was highest in trees with highest K status. Periods of net leaf K efflux and influx did not precisely correlate with fruit growth stages measured by fruit dry weight. The period of lowest fruit K accumulation (28 May-7 July) coincided with the period of maximum dry matter accumulation by the kernel. After 7 July, all increases in fruit dry weight and K content were due to mesocarp growth.

Nutrient Content of the Aboveground Tissue of 12-week-old Loblolly Pine Intraprovenance and Interprovenance Crosses

1975 ◽  
Vol 5 (4) ◽  
pp. 592-598 ◽  
Author(s):  
R. A. Woessner ◽  
C. B. Davey ◽  
B. E. Crabtree ◽  
J. D. Gregory
Keyword(s):  
Loblolly Pine ◽  
Dry Matter ◽  
Dry Weight ◽  
Nutrient Content ◽  
Seed Source ◽  
Good Linear ◽  
Available Nutrients ◽  
Seed Sources ◽  
Linear Relationships ◽  
Aboveground Tissue

Nutrient content (P, K, Ca, Mg) of the aboveground tissue of a series of full-sib loblolly crosses was found to vary by genotype. Variability among and within seed sources is indicated for the ability to absorb Ca and Mg. Absorption of P and K was not found to be dependent on seed source, but the full-sib crosses differ. Good linear relationships were found between plant dry weight and weight of element but not between plant dry weight and percentage of element. Certain highly efficient crosses can be expected to be good producers of dry matter on sites low in available nutrients.

Dry Matter, Nodulation and Nutrient Uptake in Chickpea (Cicer arietinum) as Influenced by Irrigation and Phosphorus

1989 ◽  
Vol 25 (3) ◽  
pp. 349-355 ◽  
Author(s):  
S. S. Parihar ◽  
R. S. Tripathi
Keyword(s):  
Grain Yield ◽  
Nutrient Uptake ◽  
Irrigation Water ◽  
Vegetative Growth ◽  
Dry Matter ◽  
Dry Weight ◽  
Irrigation Scheduling ◽  
Dry Matter Accumulation ◽  
Pan Evaporation ◽  
Eastern India

SUMMARYThe response of chickpea to irrigation and phosphorus was studied at Kharagpur in Eastern India. Irrigation scheduling was based on the ratio between irrigation water applied and cumulative pan evaporation (ID/CPE), and had little effect on dry matter accumulation. Increasing the frequency and amount of irrigation reduced the number and dry weight of nodules per plant, which increased to a maximum 70 days after sowing and then declined. Irrigation significantly reduced grain yield as a result of excessive vegetative growth at the expense of pod formation. Application of phosphorus promoted nodulation and increased both nodule dry weight and the concentration of N, P and K in grain and stover. Uptake of N, P and K by the crop was also increased.

SUCROSE AND SUCROSE SYNTHASE ACTIVITY DURING KERNEL DEVELOPMENT IN TRITICALE, WHEAT AND RYE

1985 ◽  
Vol 65 (4) ◽  
pp. 867-877 ◽  
Author(s):  
LEONARD SAARI ◽  
SEPPO O. SALMINEN ◽  
ROBERT D. HILL
Keyword(s):  
Sucrose Synthase ◽  
Dry Matter ◽  
Dry Weight ◽  
Dry Matter Accumulation ◽  
Kernel Development ◽  
Hexokinase Activity ◽  
Glucose Levels ◽  
Large Fluctuations ◽  
Substantial Decline ◽  
Sucrose Level

Developing triticale, wheat and rye grains were studied from 6 to 42 days postanthesis with respect to levels of sucrose and sucrose synthase activity. These were compared with levels of glucose and hexokinase activity as well as changes in dry weight and water content. Dry matter accumulation was linear in all cultivars and ceased at 26–34 days postanthesis, depending on the cultivar. Sucrose synthase activity was low in all tested cultivars at 3 days postanthesis and increased to near maximum levels by 15 days postanthesis. With the exception of triticale 6A190, maximum sucrose synthase activities were approximately 12 m units per seed and did not vary between cultivars. Triticale 6A190 had a maximum sucrose synthase activity of 16.5 m units per seed which occurred at about 21 days postanthesis. Sucrose synthase activity declined at maturity. Sucrose levels varied throughout kernel development. The extent of the variation differed amongst the tested cultivars. Triticale 6A190 had large fluctuations in sucrose level. Sucrose content changed from 1 mg per seed at day 12 to less than 0.1 mg/seed at day 18 to greater than 1 mg per seed at day 28. Hexokinase activity increased throughout kernel development with no substantial decline of activity at maturity. Glucose levels were highest during early kernel development and declined toward maturity. The variations in sucrose and sucrose synthase in triticale 6A190 suggest a malfunction in the metabolism of the line during kernel development. No direct relationship could be established, however, between these abnormalities and kernel shrivelling in 6A190.Key words: Sucrose, sucrose synthase, kernel development, triticale, wheat, rye, hexokinase

Tiller production and dry matter accumulation in six creeping bentgrass genotypes grown in Manitoba

1991 ◽  
Vol 71 (2) ◽  
pp. 595-599 ◽  
Author(s):  
D. J. Cattani ◽  
M. H. Entz ◽  
K. C. Bamford
Keyword(s):  
Aboveground Biomass ◽  
Dry Matter ◽  
Biomass Accumulation ◽  
Creeping Bentgrass ◽  
Dry Weight ◽  
Dry Matter Accumulation ◽  
Agrostis Palustris ◽  
Putting Green ◽  
Green Core ◽  
Tiller Density

Tiller production and dry matter accumulation were monitored in six creeping bentgrass (Agrostis palustris Hud.) genotypes maintained as a putting green. Core samples for tiller density and aboveground biomass determinations were collected at intervals between October 1987 and October 1989. Two experimental lines, UM84-01 and UM86-01, produced more (P < 0.05) tillers and higher (P < 0.05) aboveground biomass than the commercial cultivars Penneagle, National, Emerald and Seaside. Both tiller density and aboveground biomass rankings among genotypes were consistent over the study period. Although lower tillering genotypes had a significantly higher aboveground biomass per tiller, total aboveground biomass was influenced more by tiller density than by biomass per tiller. The relationship between tiller density and tiller dry weight was expressed mathematically to determine potential wear stress resistance among genotypes. Key words: Creeping bentgrass, tillering, biomass accumulation

Sign in / Sign up

Export Citation Format

Share Document