scholarly journals Growth and nutrient responses of Betula platyphylla, Larix kaempferi, and Chamaecyparis obtusa to different application methods of solid compound fertilizer

2021 ◽  
Keyword(s):  
Chamaecyparis Obtusa ◽  
Larix Kaempferi ◽  
Betula Platyphylla ◽  
Solid Compound ◽  
Compound Fertilizer ◽  
Application Methods

scholarly journals Effective Placement Methods of Vermicompost Application in Urban Tree Species: Implications for Sustainable Urban Afforestation

2020 ◽  
Vol 12 (14) ◽  
pp. 5822
Author(s):  
Huong Thi Thuy Dao ◽  
Jeong Min Seo ◽  
Jonathan O. Hernandez ◽  
Si Ho Han ◽  
Woo Bin Youn ◽  
...  
Keyword(s):  
Nutrient Uptake ◽  
Tree Species ◽  
Growth Parameters ◽  
Belowground Biomass ◽  
Chamaecyparis Obtusa ◽  
Urban Trees ◽  
Nutrient Concentrations ◽  
Larix Kaempferi ◽  
Urban Tree ◽  
Slow Growing

Knowledge on growth and nutrient uptake characteristics of urban trees and effective strategies to grow trees can help accomplish the goal of urban afforestation initiatives in a sustainable way. Thus, the study investigated the effects of different vermicompost (VC) application placements on the growth and nutrient uptake of three contrasting tree species (fast-growing Betula platyphylla and Larix kaempferi and slow-growing Chamaecyparis obtusa) to provide implications for growing tree stocks for sustainable urban afforestation programs. Five placement methods were used in the greenhouse trial: no fertilization (CON), surface placement (VCs), subsurface placement at 6-cm depth (VCc), bottom placement (35-cm depth (VCb)), and mixed with soil (VCm). We measured the growth parameters such as height, root collar diameter (RCD), and biomass and analyzed foliar nutrient concentrations in response to different placement treatments of VC. Relative height growth was the highest at VCc (132% (B. platyphylla), 114% (L. kaempferi)) and VCs ((57%) C. obtusa). Significant improvement in aboveground and belowground biomass growth of all species at VCs and VCc compared to the other treatments was also observed. Generally, VC treatments significantly increased N concentration compared to CON in all species. In conclusion, fertilizing the fast- and slow-growing urban tree species using VCs and/or VCc is relevant to growing high quality planting stocks for sustainable urban afforestation purposes.

scholarly journals Effect of the Applied Fertilization Method under Full Straw Return on the Growth of Mechanically Transplanted Rice

Plants ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 399
Author(s):  
Jichao Tang ◽  
Ruoyu Zhang ◽  
Hechao Li ◽  
Jun Zhang ◽  
Shaoqiang Chen ◽  
...  
Keyword(s):  
Dry Matter ◽  
Ammonium Carbonate ◽  
Fertilizer Application ◽  
Dry Matter Accumulation ◽  
Straw Decomposition ◽  
Nitrogen Use ◽  
Compound Fertilizer ◽  
Straw Return ◽  
Use Efficiency ◽  
Application Methods

This study aimed to improve nitrogen utilization and alleviate the inhibition of straw decomposition during early tillering and the growth of paddy after straw return. Specifically, three different nitrogen fertilizer (base fertilizer) application methods were tested under full straw return: applying the compound fertilizer once (J1), applying the compound fertilizer twice (J3) and applying the ammonium carbonate fertilizer plus compound fertilizer (J2). Full straw return without fertilizer (CK1) and no straw return without fertilizer (CK2) were used as the controls. The results showed that treatment with ammonium carbonate fertilizer combined with compound fertilizer (J2) significantly enhanced straw decomposition, light interception and dry matter accumulation at an early stage of tillering, but reduced tiller occurrence at a late tillering stage. Grain yield was affected due to reduced dry matter accumulation, nitrogen use efficiency and number of effective panicles. There were no significant differences in rice growth, nitrogen use efficiency and grain yield between the one-time or two-time compound fertilizer application methods. In contrast, treatment with ammonium carbonate fertilizer combined with compound fertilizer (J2) under full straw return effectively improved straw decomposition and accelerated the return of green and tillering. In addition, the proportion of ammonium carbonate fertilizer affected the nutrient utilization efficiency and yield at later stages.

Estimation of Carbon Stock and Uptake for Larix kaempferi Lamb.

2016 ◽  
Vol 7 (4) ◽  
pp. 499 ◽  
Author(s):  
Jin-Taek Kang ◽  
Yeong-Mo Son ◽  
Jong-Su Yim ◽  
Ju-Hyeon Jeon
Keyword(s):  
Carbon Stock ◽  
Larix Kaempferi

WALLEX Nos. 55 and 505

Alloy Digest ◽  
1995 ◽  
Vol 44 (8) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Mesh Size ◽  
Powder Metal ◽  
Application Methods

Abstract Wallex Nos. 55 and 505 are similar composite hardfacing powders with different mesh size for different application methods. The minimum hardness is RC 58. This datasheet provides information on composition, physical properties, and hardness. It also includes information on corrosion resistance as well as powder metal forms. Filing Code: CO-98. Producer or source: Wall Colmonoy Corporation.

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