Effects of cutting height, nitrogen fertilization, and harvest time on crude protein content of Bermudagrass (Cynodon dactylon)

2013 ◽  
Vol 33 (5) ◽  
pp. 398
Author(s):  
A. Hardcastle ◽  
G. Parks ◽  
G. Bates ◽  
D. McIntosh ◽  
J. Beeler ◽  
...  
Pastura ◽  
2019 ◽  
Vol 6 (2) ◽  
pp. 63
Author(s):  
P. Yuwono ◽  
T. Warsiti ◽  
M. Kasmiatmojo

The purpose of this study was to find out the types of weeds and their nutrition content that grow in the planting area of crops in Batur district, Banjarnegara regency potential as ruminant feed. The results showed that at least there were seven types / species of weeds that grows in the Batur village and is often used as an animal feed that were Axonopus compresus (Swarttz) Beauv, Alternanthera sesilis (L) D, C, Lantana camara L., Nasturtium montanum Wall, Commelina benghalensis L ., Cynodon dactylon (L.) Pers, Digitaria adscendens (HBK) Henr. Results of the proximate analysis showed that the weeds have crude protein content ranged from 8.02 to 23.66% and crude fiber content ranged from 19.87 - 39.36%. It could be concluded that the weeds contain crude protein and crude fiber that were pretty good for ruminants. Keywords: weeds, ruminants, crude protein, crude fiber


1979 ◽  
Vol 19 (99) ◽  
pp. 444 ◽  
Author(s):  
AC Andrews ◽  
FC Crofts

In a previous study it was found that four ecotypes of hybrid Bermudagrass (Cynodon dactylon) (ecotypes 632, 692, 6389 and 719) outyielded kikuyu (Pennisetum clandestinum) and common couch (C. dactylon) at three sites in New South Wales. The relative feeding value of these grasses was compared in terms of their crude protein content and organic matter digestibility when grown for two years at Mitchells Island, New South Wales (Lat. 32�S). Over the two years, kikuyu had the highest crude protein content, averaging 124 g kg-1 compared with 11 6,115,ll 1, 103 and 108, respectively, for the ecotypes 632, 692, 6389, 719 and common couch. Mean digestibilities of ecotypes 632, 692, 6389 and 719 were 63, 60, 61 and 58% respectively, compared with 60% for kikuyu and 57% for common couch. The crude protein content and digestibility of all ecotypes tended to be highest in early spring and late autumn and lower in summer, trends which were opposite to dry matter production rates. It was concluded that the quality of hybrid Bermudagrass forage was comparable with that of other sub-tropical grasses now being used in subcoastal New South Wales. However, careful pasture management would be required to maintain herbage quality during summer.


1978 ◽  
Vol 91 (3) ◽  
pp. 661-666 ◽  
Author(s):  
O. C. Onwudike ◽  
A. A. Adegbola

SummaryThe responses of Stylosanthes guyanensis (Stylo) to frequency and height of cutting and the effects of feeding increasing amounts of stylo meal on egg production, yolk vitamin A, yolk colour and percentage hatchability were studied. In the agronomic study, the higher the cutting height, the higher the total yield of dry matter, yield of crude protein, yield of carotene, percentage of crude fibre and the lower the carotene and crude-protein content. A highly significant correlation between the carotene content and crude-protein content (r = +0·91) was obtained.The addition of stylo meal as more than 10% of the feed significantly (P < 0·01) depressed egg production. On the other hand, yolk colour, yolk vitamin A status and percentage hatchability were significantly improved with the feeding of stylo meal.


2005 ◽  
Vol 62 (5) ◽  
pp. 487-492 ◽  
Author(s):  
Paulo Regis Ferreira da Silva ◽  
Mércio Luiz Strieder ◽  
Rúbia Patrícia da Silva Coser ◽  
Lisandro Rambo ◽  
Luís Sangoi ◽  
...  

Physiological changes incorporated into current maize hybrids suggest the occurrence of modifications in the nitrogen uptake dynamics, improving plant ability to uptake N during grain filling. This may justify late N side-dressing whenever environmental constraints prevent adequate nitrogen supply during crops vegetative development. This study evaluates effects of nitrogen fertilization at booting and silking on grain yield and kernel crude protein contents of commercial maize hybrids. Two experiments were set up in Eldorado do Sul, RS, during the 2001/2002 and 2002/2003 growing seasons. In 2001/2002, treatments were composed of two hybrids (Agroceres 303 and Pioneer 32R21), three nitrogen rates applied during maize vegetative development (30, 80 and 130 kg ha-1) and three nitrogen rates applied at silking (0, 50 and 100 kg ha-1). In 2002/2003, four hybrids (Agroceres 303, Pioneer 32R21, Dekalb 215 and Syngenta Penta) and four nitrogen rates side-dressed at booting (0, 50, 100 and 150 kg.ha-1) were assessed. There were significant increments in grain yield and kernel crude protein content with nitrogen fertilization at booting and silking. Grain yield response to late N side-dressing differed among cultivars. The impact of nitrogen fertilization at silking was higher at the smallest rate of N during the plant vegetative development. Enhancements in grain yield with late N side-dressing resulted from increases in grain weight. Modern hybrids can uptake nitrogen during silking, contradicting the hypothesis that late N side-dressing is not efficient to improve maize grain yield.


1971 ◽  
Vol 76 (3) ◽  
pp. 479-485 ◽  
Author(s):  
D. A. Lawes ◽  
D. I. H. Jones

SUMMARYThe dry-matter yield, in vitro digestibility and crude protein content of four varieties of spring cereals (one barley, one wheat and two oats) were examined at weekly intervals at two levels of nitrogen fertilization during two successive years. The ensiling characteristics of crops cut at two dates were also determined. Dry-matter yields increased until the end of July. Digestibility and crude protein content declined until mid July when values of 56–60 and 6–7% for the barley and wheat, and 53–55 and 5–6% for the oats respectively were maintained. Crops of all varieties were suitable for ensiling at maximum yield.Other experiments investigating level of whole-crop cereal yields obtainable with higher levels of fertility produced yields of over 16 metric tons D.M./ha with applications of 200–250 kg N, P2 O5 and K2O per hectare.


1973 ◽  
Vol 53 (2) ◽  
pp. 295-301 ◽  
Author(s):  
T. LAWRENCE

The interactions of three dates of initial cutting followed by one or two subsequent cuttings, three heights of cutting, and four fertilizer treatments on the dry matter yield, crude protein content, and crude protein yield of intermediate wheatgrass (Agropyron intermedium (Host.) Beauv.) were studied on irrigated land for 2 yr. Cutting on 15 June during the shot blade stage resulted in severe summer killing. Variation in height of cutting and N fertilizer levels resulted in differences in annual yields. On the basis of the 2-yr mean yield, however, these differences were masked by interaction of these factors with years. Crude protein content of the forage at cut 1 decreased with the deferment of the first cut, was not influenced by height of cutting, but increased with increases in N fertilizer. The yield of crude protein increased with increasing levels of N fertilizer and showed significant interactions for year × date of initial cutting × fertilizer and years × date of initial cutting × height of cutting. Split applications of N fertilizer showed no advantage over a single spring application in either year.


2021 ◽  
Vol 53 (1) ◽  
pp. 118-127
Author(s):  
Fábio Tiraboschi Leal ◽  
João Victor Trombeta Bettiol ◽  
Vinícius Augusto Filla ◽  
Anderson Prates Coelho ◽  
Fábio Luíz Checchio Mingotte ◽  
...  

This study aimed to evaluate the effects of low and high topdressing doses of nitrogen (N) on the qualitative attributes of common beans (Phaseolus vulgaris L.) cultivars and indicate cultivars with better grain technological characteristics. The experimental design was randomized blocks in split plots, with four replicates. Plots comprised 16 common bean cultivars of the commercial grain ‘Carioca’, while subplots comprised two N doses: 20 and 120 kg ha-1 applied as topdressing. The following evaluations were carried out: sieve yield (SY), relative grain production on sieves (RGPS), crude protein content (PROT), final water volume absorbed (FVabs), time for maximum hydration (TMH), hydration ratio (HR), cooking time (CT) and resistance to cooking (RC). The results were subjected to analysis of variance by F test and means were grouped by the Scott-Knott test. Multivariate principal component analysis was used to identify processes. The grain quality of common bean is more dependent on the genotype studied than on agricultural management such as nitrogen fertilization. The increase in the N dose applied as topdressing increases the size of common bean grains and their protein content, but with little influence in grain hydration. FVabs and CT depend on the interaction between cultivar and N doses. CT had an inverse correlation with PROT, but it was little pronounced. The cultivars BRSMG Uai, IAC Alvorada, TAA Dama and TAA Bola Cheia have the best grain quality characteristics. Highlights: Cultivar interferes more in the common bean technological quality than nitrogen fertilization. Grains crude protein content had an inverse correlation with the cooking time. Nitrogen fertilization increases the grains size and crude protein content of common bean, but with little influence in grain hydration. The cultivars BRSMG Uai, IAC Alvorada, TAA Dama and TAA Bola Cheia have the best grain quality characteristics.


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