scholarly journals Variability in a Silage Maize “Zea mays, L.” Base Population via Two Types of Families 3. Forage botanical composition and dry matter partitioning

2020 ◽  
Vol 65 (2) ◽  
pp. 151-156
Author(s):  
M Abd El-Sattar Ahmed ◽  
M. H. El-Sheikh ◽  
Kadria M.El-Sayed ◽  
Doaa KH. Abd El-Mohsen
Keyword(s):  
Zea Mays ◽  
Dry Matter ◽  
Zea Mays L ◽  
Botanical Composition ◽  
Base Population ◽  
Dry Matter Partitioning ◽  
Silage Maize

Botanical composition, yield and fermentative characteristics of lablab (Lablab purpureus L.) and sunn hemp (Crotalaría júncea L.) with yellow corn (Zea mays L.) for silage production.

1969 ◽  
Vol 95 (3-4) ◽  
pp. 133-149
Author(s):  
David Zavala ◽  
Elide Valencia ◽  
Paul F. Randel ◽  
Rafael Ramos-Santana
Keyword(s):  
Zea Mays ◽  
Dry Matter ◽  
Zea Mays L ◽  
Botanical Composition ◽  
Lablab Purpureus ◽  
Crotalaria Juncea ◽  
Fermentation Products ◽  
Annual Legumes ◽  
Yellow Corn ◽  
Sunn Hemp

Corn (Zea mays L.) is an ¡deal crop for silage because of its high levels of fermentable carbohydrates, but its major limitation for use in human and animal feeding is its low crude protein (CP) concentration. An alternative to increase CP in corn silage is through its association with annual legumes. This study involved intercropping two annual legumes, lablab (Lablab purpureus) and sunn hemp (Crotalaria juncea), with two yellow corn cultivars (HR-ORO and QPM) to assess the effect on dry matter yield (DMY); botanical composition of forage; CP, neutral and acid detergent fiber (NDF and ADF) contents; and fermentation products upon ensiling. The experiment was conducted in the Experimental Substation at Isabela, Puerto Rico, between September and December 2009 In an Oxisol soil. The experimental design was a split plot with 2 x 3 factorial; the main plots were the corn cultivars, and the subplots were the legume-corn associations and corn monoculture, with four replicates per treatment. Compared with that in corn monoculture, the mean incidence of weeds in the crop decreased from 31.08 to 13.64% in the associations, as the DMY increased from 8,216 to 10,068 kg/ha. The dry matter (DM) content of the silages was higher (P < 0.05) in monoculture (26.05%) than in association with lablab (24.30%), whereas CP increased from 9.5% (monoculture) to 10.6% (association). The overall content of NDF in the silage was 53.56%, and that of ADF increased from 32.68% in monoculture to 37.26% with legume inclusion. The overall values of the silages were pH, 3.75; percentages of lactic, acetic and total acids, 6.96, 2.53, and 9.40; and proportion N-NK/N total, 5.55%. There was little effect of the treatments on these variables, which is indicative of well-preserved silage. Corn-legume associations benefited weed control and DMY in the field, and increased the CP content of silage without affecting the fermentation process.

scholarly journals Biomass and Biogas Yield of Maize (Zea mays L.) Grown under Artificial Shading

Agriculture ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 178 ◽  
Author(s):  
Vanessa Schulz ◽  
Sebastian Munz ◽  
Kerstin Stolzenburg ◽  
Jens Hartung ◽  
Sebastian Weisenburger ◽  
...  
Keyword(s):  
Zea Mays ◽  
Dry Matter ◽  
Zea Mays L ◽  
Light Availability ◽  
Cropping System ◽  
Quality Parameters ◽  
Area Index ◽  
Biogas Yield ◽  
Full Sunlight ◽  
Silage Maize

Agroforestry, as an improved cropping system, offers some advantages in terms of yield, biodiversity, erosion protection or habitats for beneficial insects. It can fulfill the actual sustainability requirements for bioenergy production like food supply, nature conservation, stop of deforestation. However, competition between intercropped species for water, nutrients and light availability has to be carefully considered. A field trial with shading nets was conducted in Southwest Germany to evaluate the influence of different shading levels (−12, −26, and −50% of full sunlight) on biomass growth, dry matter yield and biogas quality parameters of maize (Zea mays L., cv. ‘Corioli CS’). Shading the plants causes a delayed development, a reduction in height and leaf area index and a slower senescence. Dry matter yields were reduced about 18%, 19%, and 44% compared to 21.05 Mg ha−1 year−1 at full sunlight. Biogas and methane yields were also significantly reduced, the 50% shading treatment showed a reduction of 45% for both parameters. Further, shading led to higher crude protein and crude ash contents. If silage maize is grown under shade, the yields of dry matter, biogas, and methane are nearly halved under 50% shade. Cultivation up to 26% shading could be possible.

scholarly journals Variability in Forage yield of a Silage Maize “Zea mays, L.”Base Population via Two Types of Families

2020 ◽  
Vol 65 (2) ◽  
pp. 139-149
Author(s):  
M. Abd El-Sattar Ahmed ◽  
M. H. El-Sheikh ◽  
Kadria M.El-Sayed ◽  
Doaa KH. Abd El-Mohsen
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Forage Yield ◽  
Base Population ◽  
Silage Maize

EFFECTS OF TEMPERATURE ON RATE AND DURATION OF KERNEL DRY MATTER ACCUMULATION OF MAIZE

1988 ◽  
Vol 68 (4) ◽  
pp. 935-940 ◽  
Author(s):  
M. TOLLENAAR ◽  
T. W. BRUULSEMA
Keyword(s):  
Growth Rate ◽  
Zea Mays ◽  
Dry Matter ◽  
Zea Mays L ◽  
Dry Weight ◽  
Controlled Environment ◽  
Dry Matter Accumulation ◽  
Linear Kernel ◽  
Effects Of Temperature ◽  
Kernel Growth

The response of rate and duration of kernel dry matter accumulation to temperatures in the range 10–25 °C was studied for two maize (Zea mays L.) hybrids grown under controlled-environment conditions. Kernel growth rates during the period of linear kernel growth increased linearly with temperature (b = 0.3 mg kernel−1 d−1 °C−1). Kernel dry weight at physiological maturity varied little among temperature treatments because the increase in kernel growth rate with increase in temperature was associated with a decline in the duration of kernel growth proportional to the increase in kernel growth rate.Key words: Zea mays L, period of linear kernel dry matter accumulation, controlled-environment conditions, kernel growth rate

scholarly journals Effect of poultry litter on silage maize (Zea mays L.) production and nutrient uptake

2007 ◽  
Vol 5 (1) ◽  
pp. 102 ◽  
Author(s):  
J. Hirzel ◽  
I. Matus ◽  
F. Novoa ◽  
I. Walter ◽  
I. Walter
Keyword(s):  
Zea Mays ◽  
Nutrient Uptake ◽  
Zea Mays L ◽  
Poultry Litter ◽  
Silage Maize

Grain yield, dry matter remobilization and chlorophyll content in maize (Zea mays L.) as influenced by nitrogen and water deficit

2018 ◽  
Vol 44 (3) ◽  
pp. 359-356
Author(s):  
Mahta Haghjoo ◽  
Abdollah Bahrani
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Chlorophyll Content ◽  
Water Deficit ◽  
Chlorophyll A ◽  
Dry Matter ◽  
Zea Mays L ◽  
Nitrogen Application ◽  
Significant Difference ◽  
Biological Yield

Out of 20, 40, 60 and 80 per cent moisture depletion 20% showed significantly higher grain yields, biological yield, chlorophyll a, b than the others. However, the highest contribution of stem and leaf dry matter remobilization in grain yield were obtained in 80% moisture depletion and 300 kg N/ha and the lowest one was found in the 20% moisture depletion and 150 kg N/ha. Nitrogen application increased all traits, however there were no significant difference between 250 and 300 kg N/ha.

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