Early outplanting performance of nutrient-loaded containerized black spruce seedlings inoculated withLaccaria bicolor: a bioassay study

2000 ◽  
Vol 30 (5) ◽  
pp. 744-752 ◽  
Author(s):  
A M Quoreshi ◽  
V R Timmer
Keyword(s):  
Dry Matter ◽  
Nutrient Loading ◽  
Loading Rate ◽  
Black Spruce ◽  
Nutrient Content ◽  
Growth Potential ◽  
Combined Treatments ◽  
Matter Production ◽  
Light Vector ◽  
Mycorrhizal Inoculation

Early growth potential of nutrient-loaded and (or) Laccaria bicolor (R. Mre.) Orton inoculated (Picea mariana (Mill.) BSP) seedlings was investigated using pot bioassays retrieved from a low-competition feathermoss site and a high competition hardwood-Alnus site in the boreal forest. Mycorrhizal seedlings were similar in biomass and shoot/root ratio to nonmycorrhizal seedlings at planting but significantly higher in nutrient content depending on fertilization regime and loading rate. After transplanting, both nutrient-loaded and inoculated seedlings outperformed conventional seedlings, increasing dry matter production by 20-49% with loading and by 45-92% with combined treatments. Nutrient uptake followed similar trends, increasing N, P, and K uptake by 80-124, 89-129, and 72-106%, respectively, for combined treatments compared with conventional seedlings, demonstrating the advantage of both nutrient loading and inoculation in early plantation establishment. Seedling response was greater on the feathermoss site, presumably because of less competition for nutrients and light. Vector diagnosis indicated the response was associated with a primary limitation of N and P that was alleviated by nutrient loading and mycorrhizal inoculation, particularly when treatments were combined. A strong correlation between preplant N content and outplant biomass suggests that initial nutritional status is a better criterion for predicting stock quality than traditional morphological parameters of seedlings.

A SIMPLE MATHEMATICAL MODEL FOR DIAGNOSIS OF NUTRIENT CONTENT AND DRY MATTER PRODUCTION IN WHEAT

2001 ◽  
Vol 24 (4-5) ◽  
pp. 651-660 ◽  
Author(s):  
L. Sánchez de la Puente ◽  
Rosa M. Belda
Keyword(s):  
Mathematical Model ◽  
Dry Matter ◽  
Nutrient Content ◽  
Dry Matter Production ◽  
Simple Mathematical Model ◽  
Matter Production

Dry-matter production and nutrient content of plantation oil palms in Nigeria

1963 ◽  
Vol 19 (3) ◽  
pp. 350-363 ◽  
Author(s):  
P. B. H. Tinker ◽  
K. W. Smilde
Keyword(s):  
Dry Matter ◽  
Nutrient Content ◽  
Dry Matter Production ◽  
Matter Production ◽  
Oil Palms

scholarly journals ACCUMULATION POTENTIAL AND NUTRIENT CYCLING OF APPLE OF PERU (Nicandra physalodes)

2018 ◽  
Vol 31 (2) ◽  
pp. 360-369
Author(s):  
CHRISTIANO DA CONCEIÇÃO DE MATOS ◽  
ELIZZANDRA MARTA MARTINS GANDINI ◽  
EULÁLIA APARECIDA SILVA ◽  
JOSÉ BARBOSA DOS SANTOS ◽  
EVANDER ALVES FERREIRA
Keyword(s):  
Nutrient Cycling ◽  
Dry Matter ◽  
Block Design ◽  
Nutrient Content ◽  
Matter Field ◽  
Great Ability ◽  
Matter Production ◽  
Acid Detergent Fibre ◽  
Cycling Of Nutrients ◽  
Nicandra Physalodes

ABSTRACT Weed residues can influence nutrient cycling in agroecosystems. Quantifying this potential nutrient source may influence weed control and fertilisation practices. Nicandra physalodes (L.) Gaertn. is a weed with a short life cycle and a great ability to accumulate dry matter. Field observations suggest that N. physaloides residues are easily decomposed in soil. The objective of this study was to evaluate the effect of increasing of N, P and K doses on the growth of N. physalodes, as well as the nutrient content, chemical characteristics and C/N ratio of the weed. A randomised block design, arranged in split-plot with three replications, was utilised. The main plots were given four doses of NPK (Dose 1 - 0, 0.3 and 17.2 mg dm-3; Dose 2 - 30, 450.3 and 75.4 mg dm-3; Dose 3 - 60, 900.3 and 133.4 mg dm-3; and Dose 4 - 120, 1800.3 and 249.68 mg dm-3), and the subplots were harvested at ten time points after emergence (26, 33, 40, 47, 54, 61, 76, 91, 106 and 121 days). Higher dry matter production and N, P and K content were observed in plants grown on higher levels of fertiliser. The increase of N, P and K levels in the soil resulted in greater total accumulation of these macronutrients. The highest macronutrient contents were K and N. The treatments did not affect neutral detergent fibre (NDF), acid detergent fibre (ADF) and C/N ratio of plant. N. physalodes had low C/N ratio, low NDF and ADF levels, and great nutrient accumulation, suggesting that this plant is quickly decomposed, providing a rapid cycling of nutrients.

scholarly journals DRY MATTER PRODUCTION AND NUTRIENT CONTENT OF LONGAN GROWN ON AN ACID ULTISOL

2012 ◽  
Vol 49 (2) ◽  
pp. 225-233 ◽  
Author(s):  
RICARDO GOENAGA
Keyword(s):  
Plant Growth ◽  
Field Study ◽  
Dry Matter ◽  
Acid Soils ◽  
Nutrient Content ◽  
Dry Matter Production ◽  
Production Plant ◽  
Acidic Soils ◽  
Leaf Petiole ◽  
Matter Production

SUMMARYLittle is known about the adaptability of longan (Dimocarpus longan) to acidic soils high in aluminum (Al). A two-year field study was conducted to determine the effects of various levels of soil Al on dry matter production, plant growth and nutrient content in shoots of four cultivars of longan. Soil Al and cultivars were statistically different for all variables measured in the study. Total leaf, petiole, stem and root dry weights significantly decreased at soil Al concentrations ranging from 5.1 to 12.1 cmol kg−1 but this reduction was of a smaller magnitude in roots than in other organs. Increments in soil Al resulted in a significant reduction in the concentration of leaf Ca and a significant increase in leaf Al in all cultivars. Shoot content of N, P, K, Ca, Mg, Fe, Mn and Al declined with increase in soil Al. The result of this study demonstrates that longan is highly susceptible to acid soils.

Exponential fertilization increases nutrient uptake and ectomycorrhizal development of black spruce seedlings

1998 ◽  
Vol 28 (5) ◽  
pp. 674-682 ◽  
Author(s):  
A M Quoreshi ◽  
V R Timmer
Keyword(s):  
Nutrient Loading ◽  
Black Spruce ◽  
Matter Production ◽  
Seedling Biomass ◽  
Nursery Stock ◽  
Constant Rate ◽  
Greenhouse Culture ◽  
Addition Rate ◽  
Exponential Fertilization ◽  
Mycorrhizal Development

Intensive fertilization may inhibit adequate mycorrhizal development for forest nursery stock production. Containerized black spruce (Picea mariana (Mill.) BSP) seedlings exposed to four fertilization regimes (one conventional and three exponential at 12.5, 12.5, 25, and 50 mg N/seedling, respectively) and two ectomycorrhizal inoculations (Hebeloma crustuliniforme (Bull. ex St-Amans) Quel. and Laccaria bicolor (R. Mre.) Orton) were grown from seed to assess mycorrhizal formation and nutrition of young trees under intensive greenhouse culture. Exponentially increasing fertilizer additions stimulated ectomycorrhizal development (49-85%) compared with conventional constant-rate fertilization (22-26%). Exponential fertilization also increased seedling N (13-34%) and P (5-18%) uptake, although dry matter production was reduced (17-25%) at the lowest exponential addition rate. Ectomycorrhizal inoculation did not affect seedling biomass but increased uptake of N (6-17%), P (5-20%), and K (4-18%), demonstrating a potential for nutrient loading by fungi. Higher ectomycorrhizal formation found under exponential fertilization regimes was attributed to lower initial nutrient levels maintained in the growing media. Results indicate that high exponential fertilization combined with fungal inoculation may be effective for producing both nutrient-loaded and ectomycorrhizally infected planting stock.

Potential for increasing early vigour and total biomass in spring wheat. I. Identification of genetic improvements

1991 ◽  
Vol 42 (3) ◽  
pp. 347 ◽  
Author(s):  
BR Whan ◽  
GP Carlton ◽  
WK Anderson
Keyword(s):  
Dry Matter ◽  
Growth Potential ◽  
Vegetative Stage ◽  
Dry Matter Production ◽  
Total Biomass ◽  
Breeding Populations ◽  
Matter Production ◽  
Early Vigour ◽  
Vegetative Biomass ◽  
Three Stages

Increased early vigour and vegetative biomass at anthesis should lead to yield improvements in wheat. Fifteen introductions were compared with five standard cultivars in Western Australia at Wongan Hills in 1988, and Wongan Hills, Merredin and Esperance in 1989 to identify useful parents for their early vigour and biomass production. Two times of sowing were included at Wongan Hills in 1989. Dry matter production was measured at all sites except Esperance at the early vegetative stage (49 to 55 days after sowing), late vegetative stage (56 to 75 days after sowing), and at anthesis. Some introductions were more vigorous in the vegetative stages, and produced more biomass at anthesis than the standard cultivars. Experiments under irrigated, non-stress conditions showed these lines produced leaves and tillers more quickly than the standard cultivars. The full growth potential of these lines may not have been expressed fully due to environmental limitations. While variation for dry matter production existed within the standard cultivars, it was not adequate or consistent enough to be of value in breeding. Dry matter production at the vegetative and anthesis stages was correlated significantly with grain yield in 1989, but not in 1988. Broad sense heritabilities for dry matter production at the three stages were generally high, averaging 72, 73 and 69% for early vegetative, late vegetative and anthesis dry matter production respectively. The importance of assessing the value of early vigour and biomass in breeding populations is discussed.

Intraseasonal growth and nutrient composition of jack pine needles following fertilization

1981 ◽  
Vol 11 (3) ◽  
pp. 696-702 ◽  
Author(s):  
L. D. Morrow ◽  
V. R. Timmer
Keyword(s):  
Nitrogen Fertilization ◽  
Dry Matter ◽  
Dry Weight ◽  
Nutrient Status ◽  
Nutrient Content ◽  
Growing Season ◽  
Jack Pine ◽  
Matter Production ◽  
Foliar Nutrient ◽  
Seasonal Responses

Seasonal responses in dry weight, nutrient concentration, and nutrient content of current and year-old needles of plantation jack pine (Pinusbanksiana Lamb.) were examined after treatment with factorial combinations of N, P, and K applied at 0 and 100 kg/ha, respectively. Nitrogen fertilization not only increased dry matter production and N composition of new needles, but also increased uptake of P, K, Ca, and Mg by prolonging the active growing season. Net translocation of N from old to new foliage occurred only in N-deficient trees at the peak of the growing season. Application of P and (or) K failed to increase growth and nutrient uptake of needles, except for P additions which induced luxury consumption of phosphorous. Diagnosis of foliar nutrient status indicated P and K as sufficient and N as deficient for growth in this stand.

Dry-matter production and nutrient content of plantation oil palms in Nigeria

1963 ◽  
Vol 19 (1) ◽  
pp. 19-32 ◽  
Author(s):  
A. R. Rees ◽  
P. B. H. Tinker
Keyword(s):  
Dry Matter ◽  
Nutrient Content ◽  
Dry Matter Production ◽  
Matter Production ◽  
Oil Palms

DRY MATTER PRODUCTION AND NUTRIENT CONTENT OF MAMEY SAPOTE GROWN ON AN ACID ULTISOL

2018 ◽  
Vol 55 (3) ◽  
pp. 386-394
Author(s):  
RICARDO GOENAGA
Keyword(s):  
Dry Matter ◽  
Nutrient Concentration ◽  
Dry Weight ◽  
Nutrient Content ◽  
Significant Decline ◽  
Stem Diameter ◽  
Dry Matter Production ◽  
Acidic Soils ◽  
Matter Production ◽  
Total Dry Weight

SUMMARYLittle is known about the adaptability of mamey sapote (Pouteria sapota) to acidic soils high in aluminum (Al). A 2 year field study was conducted to determine the effects of various levels of soil Al on dry matter production, stem diameter and nutrient concentration in tissues of four cultivars of mamey sapote. Soil Al treatments were statistically different for all variables measured in the study. Cultivars and the year × cultivar interaction were not significant; therefore, results were averaged over cultivars and years. Increasing soil Al concentration from 3.5 to 7.8 cmol kg−1 resulted in an increase in total dry weight, but higher soil Al concentrations resulted in dry weight and stem diameter reductions. Increments in soil Al resulted in a significant reduction in the concentration of leaf, stem and root calcium. The Al concentration in leaf and stem tissues was not significantly affected with increments in soil Al, but there was a significant decline in the concentration of Al in root tissue suggesting that mamey sapote may exclude Al from roots.

Dry matter production of green pea influenced by herbicides

2005 ◽  
Vol 33 (1) ◽  
pp. 377-380
Author(s):  
Erzsébet Nádasy ◽  
Gábor Wágner
Keyword(s):  
Dry Matter ◽  
Dry Matter Production ◽  
Matter Production ◽  
Green Pea
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