Soil Nutrients and Liming on Dry Weight Yields and Forage Quality of Signal Grass (Brachiaria decumbens Stapf.), Grown on Korat Soil Series (Oxic Paleustults) in Northeast Thailand

2010 ◽  
Vol 13 (13) ◽  
pp. 613-620 ◽  
Author(s):  
Suradej Pholsen
Keyword(s):  
Soil Nutrients ◽  
Forage Quality ◽  
Dry Weight ◽  
Soil Series ◽  
Northeast Thailand ◽  
Brachiaria Decumbens ◽  
Signal Grass

SEUIL DE NUISIBILITÉ DU CHIENDENT (Agropyron repens (L.) Beauv.) DANS LA LUZERNE (Medicago sativa L.)

1988 ◽  
Vol 68 (1) ◽  
pp. 121-130 ◽  
Author(s):  
D. PAGEAU ◽  
G. D. LEROUX
Keyword(s):  
Critical Density ◽  
Forage Quality ◽  
Dry Weight ◽  
Forage Yield ◽  
Cellulose Content ◽  
Shoot Dry Weight ◽  
Free Treatment ◽  
Plot Area ◽  
Companion Crop

A field study was conducted at St-Augustin, Québec, in 1984 and repeated in 1985 to determine the influence of quackgrass on growth, stand counts, yield and quality of alfalfa established with or without oats as a companion crop. Four densities were obtained by treating quackgrass with glyphosate on 100, 50, 25 and 0% of the plot area. The results indicate that without oats, quackgrass reduced the growth of alfalfa. About 60 d after emergence, a density of 119 shoots m−2 reduced the root dry weight of alfalfa seedlings, but there was no effect of quackgrass on the shoot dry weight and the foliar area in 1984. In 1985, an infestation of 161 shoots m−2 reduced the above three parameters. In both years after establishment, alfalfa stands were thicker in quackgrass-free plots. In pure seedings, quackgrass increased forage yield but decreased the quality of the forage during both seeding years. As compared to the quackgrass-free treatment, a density of 275 shoots m−2 increased forage yields at first cutting of 1985, but there was no effect in 1986. Using oats significantly reduced the aerial growth of quackgrass in both seeding years and at first cutting of year after 1985 seeding. Forage quality, as evaluated by NDF concentration, was reduced at infestations of ca. 300 shoots m−2. Higher infestations were necessary to reduce crude protein concentration relative to that of quackgrass-free alfalfa. The ligno-cellulose content (ADF) was not influenced by quackgrass densities. The critical density of quackgrass in alfalfa lies between 150 and 300 shoots m−2. Above this level, quackgrass significantly reduces the quality of the forage.Key words: Quackgrass, alfalfa, critical density, forage yield, forage quality, companion crop

scholarly journals Potential use of Claroideoglomus etunicatum to enrich signal grass (Brachiaria decumbens Stapf.) for silvopasture preparation

2020 ◽  
Vol 88 (1) ◽  
Author(s):  
Risa ROSITA ◽  
Rahayu WIDIASTUTI ◽  
Irdika MANSUR ◽  
Sarah Asih FAULINA
Keyword(s):  
Dry Weight ◽  
Grass Species ◽  
Brachiaria Decumbens ◽  
Grass Roots ◽  
Shoot Dry Weight ◽  
Normality Test ◽  
Number Of Leaves ◽  
Signal Grass ◽  
Spore Culture ◽  
Amf Inoculation

Silvopasture system improvement in managing post-mining land resources has been done by searching for a quality grass. One of the selected grass species is signal grass (Brachiaria decumbens Stapf.). This research aimed to prepare signal grass through the inoculation of AMF Claroideoglomus etunicatum, as an effort to enrich its growth before being applied to post-mining soil. Research stages included the AMF inoculation on signal grass through spore culture and then transferred the colonized grass to the pot using sterile zeolite as a growth medium. The treatment on the first stage was without and with AMF inoculation (dose of 20 spores) on signal grass which was repeated for 12 times. Incubation in a spore culture was 4 weeks while incubation in a pot containing sterile zeolite medium was 8 weeks. Research data were analyzed using the Shapiro-Wilk’s normality test, Independent Sample T-test, and Pearson’s correlation test. Observation results showed that the inoculation of C. etunicatum on signal grass was significantly impact on the increase of plant height, stem diameter, number of leaves, number of tillers, shoot and root fresh weight, and shoot dry weight (p <0.05). Microscopic observation showed that there was AMF colonization on treated signal grass roots in the amount of 55 ± 0.06 % with number of spores was 252 ± 9.82 per 10 g zeolites, while AMF infection was not found in uninoculated signal grass. It is expected that by providing signal grass inoculated with AMF C. etunicatum would support its growth in post-mining land for Silvopasture system.

Resistance to Anthracnose Protects Forage Quality of Alfalfa

Crop Science ◽  
1991 ◽  
Vol 31 (1) ◽  
pp. 147-150 ◽  
Author(s):  
A. W. Lenssen ◽  
E. L. Sorensen ◽  
G. L. Posler ◽  
D. L. Stuteville
Keyword(s):  
Forage Quality

scholarly journals Irrigation with Coalbed Methane Co-Produced Water Reduces Forage Yield and Increase Soil Sodicity However Does Not Impact Forage Quality

2021 ◽  
Vol 13 (6) ◽  
pp. 3545
Author(s):  
Shital Poudyal ◽  
Valtcho D. Zheljazkov
Keyword(s):  
Fresh Water ◽  
Coalbed Methane ◽  
Produced Water ◽  
Forage Quality ◽  
Dry Weight ◽  
Quality Parameters ◽  
Forage Yield ◽  
Neutral Detergent Fiber ◽  
Forage Crops ◽  
Feed Value

The extraction of coalbed methane produces a significant amount of coalbed methane co-produced water (CBMW). Coalbed methane co-produced water is often characterized by high levels of pH, total dissolved solids (TDS), sodium (Na) and bicarbonate (HCO−3) and if used for irrigation without treatment, it may be detrimental to the surrounding soil, plants and environment. CBMW ideally should be disposed of by reinjection into the ground, but because of the significant cost associated, CBMW is commonly discharged onto soil or water surfaces. This study was conducted to elucidate the effect of the CBMW (with TDS value of <1500 ppm) at various blending ratios with fresh water on the yield and quality of representative forage crops [i.e., oat (Avena sativa) and alfalfa (Medicago sativa)]. Various blends of CBMW with fresh water reduced fresh and dry weight of alfalfa by 21.5–32% and 13–30%, respectively and fresh and dry weight of oat by 0–17% and 0–14%, respectively. Irrigation with various blends of CBMW and fresh water increased soil pH and soil sodium adsorption ratio. However, forage quality parameters such as crude protein (CP), acid detergent fiber (ADF), neutral detergent fiber (NDF), total digestible nutrients (TDN) and relative feed value (RFV) of both forage crops remained unaffected.

scholarly journals Ultraviolet Transparency of Plastic Films Determines the Quality of Lettuce (Lactuca sativa L.) Grown in a Greenhouse

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 358
Author(s):  
Deissy Giovanna Quintero-Arias ◽  
John Fabio Acuña-Caita ◽  
Carlos Asensio ◽  
Juan Luis Valenzuela
Keyword(s):  
Ultraviolet Radiation ◽  
High Altitude ◽  
Dry Weight ◽  
Yield Component ◽  
Plastic Film ◽  
Area Index ◽  
Plastic Films ◽  
High Solar Radiation ◽  
Cycle Growth

The quality of red lettuce is based on the content of anthocyanin pigments, and the content of these pigments increases when the plant receives ultraviolet radiation. Lettuce crops are increasingly being grown in greenhouses to provide better quality fresh lettuce; however, both quality and productivity are affected by the type of cover used. The effects of UV-transparent and UV-blocking plastic films on the growth and quality of three lettuce cultivars (‘Casabella’ and ‘Vera’, which are both green leaf, and ‘Lollo Rosso’, which is red leaf) were investigated. The crop was cultivated at an altitude of 2576 m a.s.l. to naturally expose it to high ultraviolet radiation. The height and diameter of plants, fresh and dry weight, leaf area index, chlorophyll fluorescence, and leaf colour were determined throughout the crop cycle. Growth characteristics were not significantly influenced by the plastic film in all cultivars, probably due to the high altitude and the high solar radiation received. The UV-transparent film could increase the red colour in ‘Lollo Rosso’, and a higher commercial quality was achieved. No effect of the plastic film on the yield component was observed in the ‘Casabella’ and ‘Vera’ cultivars. The findings of this study provide guidance on what cultivar and plastic film must be used in high-altitude areas where the solar and UV radiation is high.

Localization and Chemical Speciation of Pb in Roots of Signal Grass (Brachiaria decumbens) and Rhodes Grass (Chloris gayana)

2008 ◽  
Vol 42 (12) ◽  
pp. 4595-4599 ◽  
Author(s):  
Peter M. Kopittke ◽  
Colin J. Asher ◽  
F. Pax C. Blamey ◽  
Graeme J. Auchterlonie ◽  
Yanan N. Guo ◽  
...  
Keyword(s):  
Chemical Speciation ◽  
Brachiaria Decumbens ◽  
Rhodes Grass ◽  
Chloris Gayana ◽  
Signal Grass

scholarly journals Formation of ‘Crioula’ guava rootstock under saline water irrigation and nitrogen doses

2016 ◽  
Vol 20 (8) ◽  
pp. 739-745 ◽  
Author(s):  
Leandro de P. Souza ◽  
Reginaldo G. Nobre ◽  
Evandro M. da Silva ◽  
Geovani S. de Lima ◽  
Francisco W. A. Pinheiro ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Salt Stress ◽  
Experimental Design ◽  
Deleterious Effect ◽  
Saline Water ◽  
Dry Weight ◽  
Saline Water Irrigation ◽  
N Dose

ABSTRACT The objective of this research was to evaluate the growth and formation of fresh and dry weight of ‘Crioula’ guava rootstock irrigated with waters of different saline levels and nitrogen (N) doses, in an experiment conducted in plastic tubes under greenhouse conditions. The experimental design was randomized blocks, in a 5 x 4 factorial scheme with four replicates, and the treatments consisted of five levels of water electrical conductivity - ECw (0.3, 1.1, 1.9, 2.7 and 3.5 dS m-1) and four N doses (70, 100, 130 and 160% of the N dose recommended for the cultivation of guava seedlings, cv. ‘Paluma’). The dose referring to 100% corresponds to 773 mg of N dm-3. The highest growth of ‘Crioula’ guava rootstock was obtained with ECw of 0.3 dS m-1 and fertilization of 541.1 mg N dm-3 of soil; increasing N doses did not reduce the deleterious effect of the salt stress on the growth and phytomass formation of ‘Crioula’ guava rootstock; irrigation with water of up to 1.75 dS m-1, in the production of guava rootstocks, promotes acceptable reduction of 10% in growth and quality of the seedlings.

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