Produtividade do capim tanzânia em diferentes níveis e freqüências de irrigação.

(1)

Fernando França da Cunha

1*

, Antônio Alves Soares

1

, Everardo Chartuni Mantovani

1

,

Gilberto Chohaku Sediyama

1

, Odilon Gomes Pereira

2

e Franklin Vitor de Souza Abreu

2

1_{Departamento de Engenharia Agrícola, Universidade Federal de Viçosa, Av. Ph Rolfs, s/n, 36570-000, Viçosa, Minas Gerais,} Brasil. 2_{Departamento de Zootecnia, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brasil. *Autor para}

correspondência. E-mail: fcunha@vicosa.ufv.br

!" # $%

& ' ( ) * +, -&

. & / & & & & /

/ & & +, $0 & / + & !"

& /,& $% / 1 21 3

/ / / $% / &

/ #& & & & / 4

& / 5167 2 8 & & 167

9 8 & '2 (

& # / $% 1 3 !" &

' : 1 ( & # / $% 3

!" & 7 / & ; &

& # / $% & !" $%

$% & &

! " " *8 & 8 < = < > 8

/ / > & '? ( > / ) * + *8

. & < 8 <8 & < // < 8

/ / < 8 + *8 < & < 8 >

9 2 > / 8 / < 1 21 3 8 /

/ / < 8 / *8 '@* ( < > &

/> & *8 > / ? < > & 8 & /

/ 5167 2 8 /> 167 9 8 *8

& // ? > / '2 / ( < / / / < 8 / 1 3

2 > > *8 8 8 ? > / ' : 1 / ( <

/ / / < 3 > > *8 8 / 8

8 ? > / < 8 8 / / / <

>

# $" < & > &

.

$% & / $% &

& & A& / & $%

& $%

B #

/ & / / 4 $%

/ & # / & &

$0 8 & # 4 8#

$% & /& .

$% / / & $%

& & $% 4

+ & / & / 8

/ # /

& /

# $% %

; $% B 4& /

& $% 0

& / ;

. / ' (

$% A& ;

$% $% & $%

& & C #

(2)

%&'

:: D ? :::D ( * &

' ( /8 E / &

# / %

& /& .

& / % 4 C F

& % 4 . /

/ /4& % 8 8 &

& $% & $% &

& /

$% % &

& & +

/ $% . #+

& & / & $%

$% & 7 & . & /

/ & G &

/4 D / . $%

& & $% /

& & $% H / &

B & & &

$% 4 & / +

/ $% ; / &

& / & $0 /

& &

' !" $% ( & & &

/ '/,&

$% ( 'I (

/ & 8

A& A&

# 4 4

& / & & . "

& # %

/ # B 8

/

; $% & &

/8 / !"

# $% &

) * +,

. & + @ $%

@. & / F $% ? &

? & @ 8 # / '?@ (

& - J / K $ '-JK(

/ / + °91L 9 °91L M & N

-& . & / / &

$0 & 8

% / & / /8

O & /

& / & 5 & ,& & /

& / & / / #&

&

/ / + . &

& 1 & &

P / K & /8 & / C

& -JK $%

/ / &4 .

I 8 & & P C

Q / ?@ -JK /

& & 8 &

& 3 3 1 &

&

!" $%

/8 & & #

$% & & . &

/ & 1 21 3 /

/ / J . & # /

/ C $%

& $% G

PM T ) PM CC (

USAI +

  



 −

=

100 ' (

& G

- FR -& / C $% '3 &

(D

77 R 7 & / '3 & (D

B R B & 8 & '3 & (D

* R * & # / $% '3(

B & $% $%

/ / + & / #&

& $0 / #& &

/ + ; 9 8 % &

& / $% &

$% / & $%

/,& / ; $%

& 3 / &

C. & ; & G

i i

i

LA

LP

ETc

₋1

=

₋1

−

' (

& G

@* R @ $% /

'&&(D

P R P,& / '&&(D

PB R P,& / &

'&&(

@* & !"

$% # / $% 3

B & /,& $%

/ & $% G

∑

− −

=

= i

TR i i

TR i

i ETajc ETc Ks

LA ' (

& G

(3)

" " ( ) * " %&+

'&&(D

S R 7 & /

' & /(

/ S / / & $%

9 T ' 1(G

) CTA ( Ln

) LAA ( Ln Ks

1 1

+ +

= '9(

& G

7* R 7 / / '&&(D

P R P,& / / '&&(

P 7* & / $0 1 5

& T ' 1(G

Z Da ) PM Ua ( LAA

10

−

= '1(

Z Da ) PM CC ( CTA

10

−

= '5(

& G

- R -& / / '3 & (D

? R ? / ' & (D

U R B & / ' &(

B !" $% &

# / $% 3 7* 4 / ; P

/ & & / S / ;

+ $% & /

/ #& B & & &

!" $%

/ S P & / + &

& & @*

/ & / & &

/ / & / / /,&

/ $% /

& ; /

/ + & /& / + &

& / + & 5V V 9

/ + & & / / / 3

C /, / & & / 1 &

& . &

/ & / 95 C

& & + $%

% / + 4

/ & & & &

/ ? & & / +

& 2 5 1

J / & &

$% & /C & &

& & / /

$% / $% &

& + & &

&4 8 & &

&4 @ & / +

/ / @ / < I@J @* %

/ & / B & 8 ' % J

:: ( & $% & / #&

B . / &

& / / 4 & '-J(

& / / & & $%

& # -J &

/ $% G

1 2

1

+      

=

+

ni nf GD

UF

ni nf

'2(

& G

-J R - 4 &

# D

N? R N &4 #

'67 (D

R K / # /

'8 4 & (D

R K / # #

'8 4 & (

$% # & 21 &

& C &

1 9 & & V "

& & & V

9

C / &

& / / & /

/ ; & / $% $

5167 2 8 &

& / $ / ' % G ( &

& / $

8 & & /

/ & 8 &

&& ,& &

& &

& & &

& & / 4

167 9 8 ' / W + (

& ' ( & G

100 65 ASE P

MS= MS C ' (

& G

R ' (D

B 5167 R B & / 4 &

/ 5167 2 8 D

@ R B / & /

& 5167 & 167 9 8 '3(

(4)

%&,

, & $%

& / & /

/ &

& / . ' # $%

!" $% ( /

/ & & / +

'?F7( & $0

, &4 &

# / / &4 * = > & # /

13 / B $0 %

& & & 4&

/ + &4

& /

! ! !

! """"

O J % /

; & &4 ;

$% " '@* (

& &

/ & & +,

. & / &4 &

. & & 9 °7

& . & & & $ &

& &# & &

8 /8 / @

& 1 && & . &

&# & & & &

/ &

13 17 21 25

12/3 11/4 11/5 10/6 10/7 9/8 8/9

dias days

T

em

p

er

at

u

ra

m

éd

ia

(

°C

)

M

e

a

n

t

e

m

p

e

ra

tu

re

(

°C

)

2 3 4 5

12/3 11/4 11/5 10/6 10/7 9/8 8/9 dias days

E

T

o

(

m

d

ia

-1 )

E

T

o

(

m

d

a

y

-1 )

- % * & &4 & 67 ' ( $%

" & && ' ( &

/ & & +, . &

/,& /

& & /

& & & & '* / ( F ;

$0 / & /& / $%

& 'J ( / &

. &4 'J ( & 4&

/ &

. % P,& '&&( & $% !"

$% # / $% /

& +,

7 G1 G21 G 9G1 9G21 9G 2G1 2G21 2G

2 : 5: 22 15 5

: : 55 :1 1 2 :1

2 5 : : 95 1: :

9 15 : 9 : 1 :

* / 92 12 2 2 15 9: 1 2 5 9 1 152

-& & !" $% & D 1 21

# $% & &

? !" $%

* / /,& /

& & & # / $%

/ & 4&

/ & & & 4

& / 'S ( ! &

& 4 $% /

/ /,& /

& & # / $%

!" / & # &

& !" $% O

& # !" $%

& / & &

$% & C. & ;

& / S

C. & ) !" $%

/ & &

$0 & .

& / & S

? & & !"

$% & & & & & / $%

& !" $% &

& & # / $%

X ' Y ( /

$% ' Y ( # /

$% !" $%

& ' ( & +,

O * / & ' Y 1(

&4 & +,

+ %

' Z 1( & ' Y 1(

(5)

" " ( ) * " %&/

. 0 K / &4 %

& ' ( & +,

/

7 9

B

' (

5 2± 2 1 ± 9 :2 ± 9±9

4 / & / * = > ' Y 1(

B / & /C

& . &4 "

'J ( & & & 'J

( @ . $% % & / &

& & +,

& & &

$0 / & & @

& & . / &

.#/ 4 & '-J( &

& H& -J & / $%

& J

0 40 80 120

Corte 1 Corte 2 Corte 3 Corte 4

P

ro

d

u

ti

v

id

ad

e

(g

re

ci

p

ie

n

te

-1)

Y

ie

ld

(

g

ve

ss

e

l

-1)

0 2000 4000 6000 8000

U

n

id

ad

e

F

o

to

té

rm

ic

a

UF M S

- 0 I / $% & ' (

& +, 4 & '-J(

/

& /8 & &

/

& . &

F /& /

[ "\

,& ; & &

B 8 ' ( / &

/ & ' & # ( &

& &

&# & /

& & +,

+ & # #

7 & & $% / &

/ / . "

/ / & & &

& /C ' $%

$% / $% / / (

& & $% &

& $% /

'T & 8 :::( +

& / $%

O * /

& !" $%

& ' Y 1( &

# / $% 3

21 1 3 F & # /

$% & & ' Y 1(

!" $%

& B # $% 21 3

% & ' Z 1( $

!" $% @

& /8 $ 4 & &

/ & $% & !"

& & / $%

. 1 K / &4 %

& ' ( &

!" $% # $%

# . & /

O# / $% '3(

J !" $% ' (

1 21

:9 :± 5 2 :±9 : 1±5 :

9 5± T :: 1±5 T 1 ± T

2 2 ± 7 :9 5±9 T ± 5 T

B !" $% &4 & & / & H /

# / $% &4 & & / & H / % &

/ * = > ' Y 1(

& / &4

: 1

& !" $% &

# / $% 3 * / &

& /,& $% & & * /

& &4

2 &

!" $% # /

$% 1 3 ? & &

& # / / &

& # / &

+, & & / &

'* / (

P ' ( /8 & & /

& &

3 & / + $% $% )

' :: ( /8 & & & &

B &

/ & &

/ $% ;

O P ' ( /

$% & 4 %

8 @

& / ' ::2(

/ $% /,& '

9 3 $% / (

(6)

%&2

& & /,& /

/ & & $0

O 2 &

/ & . & / &

& / & 1 8

8

& &#

'7 :2 ( ? & / $

/ & /8 # A&

/ & +, ? &

/ /8 &

& $0 & & $0

& / /

# ## #

& & &

# $% & !" $%

&

& &

9 & & /

4 &

PKF ) I '

'P ( B ( " /

K $ 2 1 9

::

O?I ?@ 7 B /

& /

" K $ :

5 1 : 1:1

K@FI I 7 & / G $%

$0 & / ,

K $ 9 : 92 ::

T@IN 7XF X ? / & 4 8#

& / G T@IN 7XF X '@ (

B / G @

- ::: 1

T@IO I? ! 2 K $ G

F& - 1

7 B@I ) B B / >

& / " # #

M // 9 1 :2

?F X ) 7 / 8

= > & / > /

&& & / + / / < 8 1_O _$

: : :::

P B@ I # %

& # ? $% '? &

U (]- J / K $ K $

P? O ? X @ $% $%

& 4 & / '

8 &( & & N > + I) G I@-OF^

O- P ? 7F@? ?@ TI FP@FI ?@

U *@7OF 9 ::2 ) + J ) +

J G TU ::2

BFOX@FI K ? ' # (

)* & +

? $% ' & & (]@ /

/ [P + W +\ - %

B / B

I FOF ) T $% /

'! P ( K $

5 5 5

FPK ? ) D W-@FI U 7 % ,

-. / # 0 1 K $ G F&

-IF P N * I & +,

/ $% " /,& $% FG

B $% & 2 #

7 & N 2 9 9 5

* I I

/ 8 / & / &

8 < F 3 2 P 11

1 199

4 # 56 7558