scholarly journals Biomass accumulation, extraction and nutrient use efficiency by cover crops

2020 ◽  
Vol 9 (10) ◽  
pp. e9969109433
Author(s):  
Valdevan Rosendo dos Santos ◽  
Leonardo Correia Costa ◽  
Antonio Márcio Souza Rocha ◽  
Cícero Gomes dos Santos ◽  
Márcio Aurélio Lins dos Santos ◽  
...  
Keyword(s):  
Biomass Production ◽  
Cover Crops ◽  
Nutrient Use Efficiency ◽  
Biomass Accumulation ◽  
Pigeon Pea ◽  
Dry Mass ◽  
Area Index ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Mass Accumulation

The high biomass production of certain cover crops species is due to their high absorption capacity and nutrients use efficiency. Its potential for biomass production it is important to obtain productive plants using nutritional information especially in environments with low nutrient apport. The objective was to evaluate the biomass accumulation, extraction and nutrient use efficiency by cover crops growing in a soil of low fertility. The treatments were arranged in four randomized blocks, composed of seven cover crops: sunn hemp, spectabilis, pigeon pea forage, pigeon pea arbore, lab lab, jack bean and mucuna. To evaluate dry mass accumulation, crop growth rate and leaf area index, six plants were used in different times: 30, 45, 60, 75, 90 and 105 days after sowing. The cover crops differed in vegetative cycle, dry mass accumulation, yield, extraction and nutrient use efficiency, with better performance presented by pigeon pea arbore. The cover crops are good recyclers of nutrients, particularly nitrogen, potassium and calcium and have potential for use in the cultivation systems in the Northeast of Brazil.

Phosphorus–zinc interactions in cotton: consequences for biomass production and nutrient‐use efficiency in photosynthesis

2018 ◽  
Vol 166 (4) ◽  
pp. 996-1007 ◽  
Author(s):  
Elcio Ferreira Santos ◽  
Paula Pongrac ◽  
André Rodrigues Reis ◽  
Philip J. White ◽  
José Lavres
Keyword(s):  
Biomass Production ◽  
Nutrient Use Efficiency ◽  
Nutrient Use ◽  
Use Efficiency

scholarly journals WOOD-DERIVED BIOCHAR INFLUENCES NUTRIENT USE EFFICIENCY OF HEAVY METALS IN SPINACH (SPINACIA OLERACEA) UNDER GROUNDWATER AND WASTEWATER IRRIGATION

2019 ◽  
Vol 27 (3) ◽  
pp. 144-152 ◽  
Author(s):  
Sadaf Aslam Ghori ◽  
Shamim Gul ◽  
Saniya Tahir ◽  
Meenah Sohail ◽  
Saira Batool ◽  
...  
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Plant Biomass ◽  
Nutrient Use Efficiency ◽  
Wastewater Irrigation ◽  
Area Index ◽  
Nutrient Use ◽  
Groundwater Irrigation ◽  
Use Efficiency ◽  
Biochar Amendment

Present study analysed the influence of slow-pyrolyzed wood-derived biochar on growth performance and heavy metal accumulation in the leaves of spinach grown under groundwater and wastewater irrigation. Biochar was applied in soil as 5% (~30 t·ha−1) and 10% (~60 t·ha−1) amendment. According to results, plant biomass was significantly higher under wastewater than groundwater irrigation. Biochar amendment increased significantly the aboveground plant biomass and root biomass and promoted water use efficiency (WUE). Under groundwater irrigation, biochar amendment at 10% application rate, increased the leaf area index (P < 0.05), while amendment of biochar at all application rates significantly reduced leaf area index under wastewater irrigation (P < 0.05). Application of biochar also reduced accumulation of rhizosphere soil around roots under wastewater irrigation, indicating less exudate production in the rhizosphere of plants. Biochar significantly reduced the concentration of copper (Cu) in under wastewater irrigation. Biochar increased the nutrient use efficiency (NUE) of plants for zinc (Zn) and Cu under wastewater irrigation.

scholarly journals Distribution of macronutrients (N, P, K, Mg) from single-nutrient and compound fertilizers application in oil palm seedlings (Elaeis guineensis Jacq.)

2021 ◽  
Vol 6 (1) ◽  
pp. 10
Author(s):  
Eko Noviandi Ginting ◽  
Suroso Rahutomo ◽  
Rana Farrasati ◽  
Iput Pradiko
Keyword(s):  
Oil Palm ◽  
Elaeis Guineensis ◽  
Nutrient Use Efficiency ◽  
Biomass Accumulation ◽  
Plant Performance ◽  
Randomized Design ◽  
Nutrient Use ◽  
Nutrients Availability ◽  
Use Efficiency ◽  
And Control

Nutrients availability and plant's ability to absorb nutrients are essential factors in supporting plant performance. There are two forms of fertilizer as a source of nutrients for oil palm, which are single-nutrient fertilizer (SNF) and briquette compound-nutrient fertilizer (BCNF). This study observed the concentration, uptake, distribution, and efficiency of macronutrients in plant organs of oil palm seedlings with two different fertilizer types. An experiment using oil palm seedlings was arranged in non-factorial complete randomized design (CRD) with three treatments, namely control, NPK in the form of briquettes, and single nutrient fertilizer consisting of urea, TSP, MOP, and kieserite with doses adjusting the composition of the slow-release BCNF (16-10-24-0.75) in three replications with a total of 27 seedlings. The results showed that the concentration, uptake, and distribution of nutrients between treatments and control were not significantly different. The order of nutrient uptake in leaves and stems of plants was N > K > Mg and P, while in roots was K > N > Mg > P. In BCNF and SNF treatments, the biomass accumulation in the stems, roots, and leaves were at percentage of 41 %, 30 %, and 29 %, while in the control, the biomass accumulation in the roots, stems, and leaves were at percentage of 39 %, 33 %, and 28 %, respectively. BCNF treatment had a greater efficiency indicated by a higher nutrient use efficiency (NUE) value compared to SNF or control. 

Typhoon effects on litterfall in a subtropical forest

2003 ◽  
Vol 33 (11) ◽  
pp. 2184-2192 ◽  
Author(s):  
Kuo-Chuan Lin ◽  
Steven P Hamburg ◽  
Sheng-lin Tang ◽  
Yue-Joe Hsia ◽  
Teng-Chiu Lin
Keyword(s):  
Boreal Forests ◽  
Nutrient Use Efficiency ◽  
Dry Mass ◽  
Subtropical Forest ◽  
Nutrient Loss ◽  
Wind Disturbance ◽  
Broadleaf Forest ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Fushan Experimental Forest

The litterfall in a subtropical broadleaf forest within the Fushan Experimental Forest in northeastern Taiwan was monitored for 9 years. Mean annual litterfall was very sensitive to typhoon frequency and intensity, ranging from 3 to 11 Mg·ha–1·year–1. Litterfall was significantly higher in years with strong typhoons than in years without typhoons, and the number of strong typhoons explained 82% of interannual variation in litterfall. Nutrient-use efficiency (dry mass/nutrients in litterfall) was high for N, but low for P compared with other tropical forests. This result supports the idea that the study forest is P limited but not N limited. Nutrient loss via litterfall represents a large percentage of aboveground biomass, especially during years with strong typhoons (e.g., 19%–41%, 15%–40%, 5%–12%, for N, P, and K, respectively). Forests that experience infrequent wind disturbance (e.g., temperate or boreal forests) can gradually regain any lost nutrients prior to the next disturbance; this is different from the situation observed in the Fushan Experimental Forest. At Fu-shan the pattern of not responding to typhoons with a flush of new growth appears to be an adaptation to the frequency with which there are multiple typhoons affecting the forest in a single year. Nutrient loss in litterfall caused by frequent typhoon disturbances appears to limit tree growth and contributes to the very low canopy height of the Fushan Experimental Forest.

Nutrient use efficiency and biomass production of tree species for rotational woodlot systems in semi-arid Morogoro, Tanzania

2007 ◽  
Vol 71 (3) ◽  
pp. 175-184 ◽  
Author(s):  
Anthony A. Kimaro ◽  
Vic R. Timmer ◽  
Ancelm G. Mugasha ◽  
Shaban A. O. Chamshama ◽  
Deborah A. Kimaro
Keyword(s):  
Biomass Production ◽  
Tree Species ◽  
Nutrient Use Efficiency ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Semi Arid

Response of Split Application of Nutrients through Fertigation in Pigeonpea

2020 ◽  
Author(s):  
S.U. Kakade ◽  
J.P. Deshmukh ◽  
N.D. Parlawar ◽  
V.V. Goud
Keyword(s):  
Grain Yield ◽  
Nutrient Use Efficiency ◽  
Pigeon Pea ◽  
Recommended Dose ◽  
Irrigated Agriculture ◽  
Split Application ◽  
Yield Attributes ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Drip Fertigation

Background: Among the different production factors, irrigation and nutrient management are of immense importance in Pigeon pea cultivation. Drip irrigation can be considered as an efficient irrigation system to maintain optimum moisture content in the root zone. Split application of fertilizers at appropriate stages of crop growth ensure a regular flow of both water and nutrients resulting in increased growth rate and higher yield. Fertigation proposed as a means to increase efficient use of water and fertilizer to increase yield and sustained irrigated agriculture. The current study aims to study the efficacy of split application of N, P and K on growth, water and nutrient use efficiency, productivity and profitability of Pigeon pea.Methods: The field experiment was conducted at Department of Agronomy Farm, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola during three consecutive kharif season of 2016-17, 2017-18 and 2018-19. The experiment was laid out in randomised block design with four replications and eight treatments with an objective to study the efficacy of split application of nutrients on growth, water and nutrient use efficiency, productivity and profitability of Pigeon pea. Result: The results revealed that, all the growth parameters, yield attributes and grain yield of Pigeon pea were substantially enhanced by drip fertigation levels at 125:100:100 per cent recommended NPK than lower fertigation levels (75 and 100%) and over conventional soil application of recommended dose of NPK kg ha-1. Drip fertigation at 125:100:100 per cent recommended dose of NPK ha-1 recorded higher pigeon-pea pooled grain yield of 4053 kg ha-1. The maximum GMR (Rs.226807 ha-1), NMR (Rs.176604 ha-1), B:C ratio (4.52) and highest economic efficiency of Rs.883 day-1 ha-1. 

scholarly journals Growth, Physiology and Nutrient Use Efficiency in Eugenia dysenterica DC under Varying Rates of Nitrogen and Phosphorus

Plants ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 722 ◽  
Author(s):  
Daniele Nogueira dos Reis ◽  
Fabiano Guimarães Silva ◽  
Reginaldo da Costa Santana ◽  
Thales Caetano de Oliveira ◽  
Mariângela Brito Freiberger ◽  
...  
Keyword(s):  
Electron Transport ◽  
Electron Transport Rate ◽  
Nutrient Use Efficiency ◽  
Dry Mass ◽  
Brazilian Cerrado ◽  
Nitrogen And Phosphorus ◽  
Growth Physiology ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Eugenia Dysenterica

The production of high-quality seedlings and their use in commercial planting reduce pressure on natural areas. Eugenia dysenterica DC is a native fruit tree from the Brazilian Cerrado, whose nutritional requirements are still unclear. This study aimed to evaluate the effects of nitrogen (N) and phosphorus (P) supplementation on the physiology, growth and nutrient uptake, and use efficiencies of E. dysenterica seedlings grown in glasshouse conditions. The following rates were used in separate experiments: 0, 50, 100, 200, and 400 mg dm−3 N and 0, 100, 200, 400, and 600 mg dm−3 P. The experiment was conducted in a randomized block with four replications. The lowest N rate (50 mg dm−3) increased the stomatal conductance (gS) and, consequently, resulted in the highest transpiration (E), electron transport (ETR), and photosynthetic (A) rates. Also, rates of 50 mg dm−3 and 100 mg dm−3 N increased the Root Uptake Efficiency (RUE) and plant Nutrient Use Efficiency (NUE) for macronutrients and the RUE for micronutrients, stimulating plant growth. Phosphorous fertilization resulted in the maximum values for photosynthesis, electron transport rate, total dry mass, and NUE at the 200 mg dm−3 rate. The results of this study suggest that fertilization with 50 mg dm−3 N and 200 mg dm−3 P is suitable for the development of E. dysenterica seedlings.

Sign in / Sign up

Export Citation Format

Share Document