Chuyên ngành
Khoa
Khóa

: 2011 2015

Thái Nguyên


Chuyên ngành
Khoa
Khóa

: 2011 2015

Thái Nguyên


i

thân.

-

Sinh viên


ii

4.1:


7

2014 ..................................................... 39

........................... 40
4.10.
............................................................................... 43
................. 45


iii

4.1.
Nông lâm 7...................................................................................... 27
......................................... 28
.................. 30
4.4:

7
2014................................................................................................. 35

4.5:

26
Nông lâm 7

2014 ............................................................... 37

Hình 4.6.
................ 45

.......................................................................... 1
1.

.............................................................................. 2
................................................................................................... 2
................................................................... 2
............................................................... 3
................................................... 3
................................................................ 3
................................................................................. 4
...... 4
........................ 4
......................... 6
............................................................ 8
............................................................ 8
............................................................... 9
............................................................ 10
............. 11

............................................................ 13
............................................................................... 13
............................................................................ 13
...................................................................... 13

phân NTT/ha: ........................................................................................... 13
....................................................... 14


vi


vii

................................................................. 40

................................................................... 45
........................................................... 47
5.1.

................................................................................................ 47
................................................................................................. 48
............................................................................ 49


1

1.1.
Cây lúa (Oryza sativa L.)

Tuy
nhiên, cùng

Bê


2

:
c Nông
.



26
,
.

,

,

.

.


5

FAO (2013) thì
.

10,90

g


6

duy

2.2.2.



].
2.3.2.

cách rõ
[6,10,11,14].


10

1-

tr

].

2O5,

nh.
2.3.3.

qu

trong


11

khi



-

NTT/ha:
1 (Ne1): bón (40N + NEB26) + 80P2O5 + 85K2O


14

2 (Ne2): bón (50N + NEC26) + 80P2O5 + 85K2O
tích 1ha.
3: bón 100N + 80P2O5 + 85K2O
-

Thúc 1 khi lúa bén
-25 ngày

N

K2O

50

30

30

40

20

Ne2

Ne2

Ne1

3.4.3.
3.4.3.1.
-

0

-


16

2

2

)

+ Ne1
+ Ne2
+

-

- 12 ngày bón