Results 51 to 60 of about 7,635,915 (348)

Effect of initial planting density and tree features on growth, wood density, and anatomical properties from a Hevea brasiliensis trial plantation [PDF]

open access: yes, 2014
The effect of initial planting density (500, 1,000, 1,500, and 2,000 trees per ha) on tree growth, wood density, and wood anatomical properties was studied in a 9-year-old Heave brasiliensis plantation in Malaysia.
Abdul Hamid, Hazandy   +6 more
core   +1 more source

Biomass conversion and expansion factors in Douglas-fir stands of different planting density: variation according to individual growth and prediction equations

open access: yesForest Systems, 2017
Aim of study: We built biomass expansion factors (BCEFs) from Douglas-fir felled trees planted with different planting densities to evaluate the differences according tree size and planting density.
Pasquale A. Marziliano   +4 more
doaj   +1 more source

Response of Water Radiation Utilization of Summer Maize to Planting Density and Genotypes in the North China Plain

open access: yesAgronomy, 2022
Increasing the planting density of summer maize to improve the utilization efficiency of limited soil and water resources is an effective approach; however, how the leaf water-use efficiency (WUEL), yield, and RUE respond to planting density and ...
Zhendong Liu   +5 more
doaj   +1 more source

Increasing Planting Density and Optimizing Irrigation to Improve Maize Yield and Water-Use Efficiency in Northeast China

open access: yesAgronomy
We investigated the effects of variety, planting density, and irrigation amount on grain yield, water-use efficiency (WUE), and evapotranspiration (ETc).
Dongping Shen   +15 more
semanticscholar   +1 more source

Interaction effect of nitrogen form and planting density on plant growth and nutrient uptake in maize seedlings

open access: yesJournal of Integrative Agriculture, 2019
High planting density is essential to increasing maize grain yield. However, single plants suffer from insufficient light under high planting density. Ammonium (NH4+) assimilation consumes less energy converted from radiation than nitrate (NO3−).
Peng WANG   +7 more
doaj   +1 more source

Episodic herbivory, plant density dependence, and stimulation of aboveground plant production [PDF]

open access: yesEcology and Evolution, 2020
AbstractHerbivory is a major energy transfer within ecosystems; an open question is under what circumstances it can stimulate aboveground seasonal primary production. Despite multiple field demonstrations, past theory considered herbivory as a continuous process and found stimulation of seasonal production to be unlikely.
Mark E. Ritchie, Jacob F. Penner
openaire   +3 more sources

Yield, pest density, and tomato flavor effects of companion planting in garden-scale studies incorporating tomato, basil, and Brussels sprout [PDF]

open access: yes, 2004
Companion planting is a small-scale intercropping practice often associated with organic or biodynamic gardening. Two garden-scale studies tested popular companion planting claims by comparing garden beds devoted entirely to one of three or more test ...
Bomford, Michael K.
core  

Determining optimal mulching, planting density, and nitrogen application to increase maize grain yield and nitrogen translocation efficiency in Northwest China

open access: yesBMC Plant Biology, 2020
Background The combination of mulch with N fertilizer application is a common agronomic technique used in the production of rainfed maize ( Zea mays L. ) to achieve higher yields under conditions of optimum planting density and adequate N supply. However,
Xiukang Wang   +5 more
semanticscholar   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Optimal planting density of Agave for maximising aboveground biomass: A systematic literature review

open access: yesFrontiers in Chemical Engineering, 2022
There are hundreds of species of Agaves found globally in natural and anthropogenic systems. Agaves are used to produce fibres, alcoholic beverages like tequila, and in biofuel production.
William Crawford   +2 more
doaj   +1 more source

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