Registro Completo 
Biblioteca(s): 
Embrapa Pantanal. 
Data corrente: 
04/08/1995 
Data da última atualização: 
04/08/1995 
Autoria: 
PRINE, G. M.; BURTON, G. W. 
Título: 
The effect of nirogen rate and clipping frequency upon the yield, protein content and certain morphological characteristics of Coastal Bermudagrass (Cynodon dactylon, (L) Pers.) 
Ano de publicação: 
1956 
Fonte/Imprenta: 
Agronomy Journal, v.48, p.296301, 1956. 
Idioma: 
Inglês 
Conteúdo: 
A 5yearold of Coastal Bermudagrass growing on a Tifton sandy loam soil was subjected to treatments consisting of 5 rates of N (0, 100, 300, 600, and 900 pounds per acre annually) in all possible combinations with 5 clipping intervals (2, 3, 4, 6, and 8 weeks). In addition, treatment receiving 600 pounds of N per acre annually was clipped weekly. The hay production, proteina percentage, protein production, and percent N recovery were determined for these treatments during the unusually wet year of 1953 and the record dry year of 1954. Nitrate analyses were made of selected samples in the spring of 1953.
Morphological measurements made in 1953 included total stem lenght of longest leafblade
per stem, number of internodes per stem, leaf percentage, percent of stems in observed samples containing seed heads, and lenght of internodes per stem. Average plant height before cutting was measured in 1954. Generally, increasesd in N rate increased the hay yield, protein percentage, protein yield, and nitrate content of this hybrid Bermudagrass, but reduced the percent of N fertilizer recovered in the hay. Increasing the N rate resulted in
increases in stem length, plant height, length of longest leafblade per stem, number of internodes per stem, and length of internodes, but resulted in decreases in leaf percentage
and percent of stems with seed heads. Increasing the length of the clipping interval increased the hay yield and lowered the protein percentage, but had little effect on nitrate content, protein yield, and percent N recovery. The general effects of increasing the length of clipping intervals upon morphological measurements were increases in stem length, length of longest leafblade per stem, plant height, number of internodes per stem, and internode length and decreases in leaf percentage. The percent of seed heads observed in the forage samples was significantly higher (5.0 to 7.5%) at the 6 and 8week clipping intervals athan at the shorter clipping frequencies (2.0%). Of the morphological measurements studied, average stem length appeared to be the simplest and most practical for judging the age and quality of Coastal Bermudagrass hay. An arbitrary value of 18 inches was chosen as the maximum average length for good quality Coastal Bermudagrass hay. MenosA 5yearold of Coastal Bermudagrass growing on a Tifton sandy loam soil was subjected to treatments consisting of 5 rates of N (0, 100, 300, 600, and 900 pounds per acre annually) in all possible combinations with 5 clipping intervals (2, 3, 4, 6, and 8 weeks). In addition, treatment receiving 600 pounds of N per acre annually was clipped weekly. The hay production, proteina percentage, protein production, and percent N recovery were determined for these treatments during the unusually wet year of 1953 and the record dry year of 1954. Nitrate analyses were made of selected samples in the spring of 1953.
Morphological measurements made in 1953 included total stem lenght of longest leafblade
per stem, number of internodes per stem, leaf percentage, percent of stems in observed samples containing seed heads, and lenght of internodes per stem. Average plant height before cutting was measured in 1954. Generally, increasesd in N rate increased the hay yield, protein percentage, protein yield, and nitrate content of this hybrid Bermudagrass, but reduced the percent of N fertilizer recovered in the hay. Increasing the N rate resulted in
increases in stem length, plant height, length of longest leafblade per stem, number of internodes per stem, and length of internodes, but resulted in decreases in leaf percentage
and percent of stems with seed heads. Increasing the length of the clipping interval increased the hay yield and lowered the protein percentage, but had little effect o... Mostrar Tudo 
PalavrasChave: 
Caracteristica morfologica; Coastal Bermudagrass; Morphological characteristics; Nitrogen rate; Pasture; Protein; Taxa de nitrogenio. 
Thesagro: 
Cynodon Dactylon; Pastagem; Proteína. 
Categoria do assunto: 
 
Marc: 
LEADER 03091naa a2200253 a 4500 001 1785302 005 19950804 008 1956 bl  0 u #d 100 1 $aPRINE, G. M. 245 $aThe effect of nirogen rate and clipping frequency upon the yield, protein content and certain morphological characteristics of Coastal Bermudagrass (Cynodon dactylon, (L) Pers.) 260 $c1956 520 $aA 5yearold of Coastal Bermudagrass growing on a Tifton sandy loam soil was subjected to treatments consisting of 5 rates of N (0, 100, 300, 600, and 900 pounds per acre annually) in all possible combinations with 5 clipping intervals (2, 3, 4, 6, and 8 weeks). In addition, treatment receiving 600 pounds of N per acre annually was clipped weekly. The hay production, proteina percentage, protein production, and percent N recovery were determined for these treatments during the unusually wet year of 1953 and the record dry year of 1954. Nitrate analyses were made of selected samples in the spring of 1953. Morphological measurements made in 1953 included total stem lenght of longest leafblade per stem, number of internodes per stem, leaf percentage, percent of stems in observed samples containing seed heads, and lenght of internodes per stem. Average plant height before cutting was measured in 1954. Generally, increasesd in N rate increased the hay yield, protein percentage, protein yield, and nitrate content of this hybrid Bermudagrass, but reduced the percent of N fertilizer recovered in the hay. Increasing the N rate resulted in increases in stem length, plant height, length of longest leafblade per stem, number of internodes per stem, and length of internodes, but resulted in decreases in leaf percentage and percent of stems with seed heads. Increasing the length of the clipping interval increased the hay yield and lowered the protein percentage, but had little effect on nitrate content, protein yield, and percent N recovery. The general effects of increasing the length of clipping intervals upon morphological measurements were increases in stem length, length of longest leafblade per stem, plant height, number of internodes per stem, and internode length and decreases in leaf percentage. The percent of seed heads observed in the forage samples was significantly higher (5.0 to 7.5%) at the 6 and 8week clipping intervals athan at the shorter clipping frequencies (2.0%). Of the morphological measurements studied, average stem length appeared to be the simplest and most practical for judging the age and quality of Coastal Bermudagrass hay. An arbitrary value of 18 inches was chosen as the maximum average length for good quality Coastal Bermudagrass hay. 650 $aCynodon Dactylon 650 $aPastagem 650 $aProteína 653 $aCaracteristica morfologica 653 $aCoastal Bermudagrass 653 $aMorphological characteristics 653 $aNitrogen rate 653 $aPasture 653 $aProtein 653 $aTaxa de nitrogenio 700 1 $aBURTON, G. W. 773 $tAgronomy Journal$gv.48, p.296301, 1956.
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Embrapa Pantanal (CPAP) 
