|
Thursday, November 14, 2024
|
|
|
മലയാളം
|
|
|
|
|
|
Climate & Soil
|
|
|
|
Rice can be cultivated under a variety of climatic and soil conditions. Rice cultivation
is conditioned by temperature parameters at the different phases of growth. The
critical mean temperature for flowering and fertilization ranges from 16 to 200C,
whereas, during ripening stage, it ranges from 18 to 320C. Temperature
beyond 350C affects grain filling. Rice comes up well in different soil
types. For normal growth, a pH range of 5.0-8.0 is suitable.
In general, rice can be grown as a transplanted or a direct sown crop during three
seasons as shown below depending on the agroclimatic situations.
Different rice growing seasons of Kerala
During second crop, in Palakkad district, where assured irrigation is available,
for higher yield in photosensitive high yielding varieties the crop commencement
may be adjusted in such a way that it flowers only during the second fortnight of
December, facilitating proper integration with the weather, better utilization of
applied fertilizers and high filling percentage.
|
Agroclimatic situations
|
Seasons
|
Period
|
|
From
|
To
|
|
General
|
Virippu (I crop / autumn)
|
April-May
|
Sept-Oct
|
|
Mundakan (II crop / winter)
|
Sept-Oct
|
Dec-Jan
|
|
Puncha (III crop / summer)
|
Dec-Jan
|
March-April
|
|
Onattukara
|
Virippu (I crop / autumn)
|
April
|
August
|
|
Mundakan (II crop / winter)
|
Aug-Sept
|
Dec-Jan
|
|
Third crop (where HYVs come up)
|
Feb - Mar
|
April
|
|
Kuttanad
|
Additional crop
|
May-June
|
Aug-Sept
|
|
Puncha
|
Oct-Nov
|
Feb-March
|
|
Kole (single cropped area)
|
Mundakan (Kadumkrishi)
|
Aug-Sept
|
Dec-Jan
|
|
Pokkali
|
Virippu (I crop / autumn)
|
May-June
|
Sept-Oct
|
|
Oorumundakan
|
Aug-Sept
|
Dec-Jan
|
|
Kaippad
|
Mundakan (II crop / winter)
|
Sept-Oct
|
Dec-Jan
|
|
Puncha (III crop / summer)
|
Dec-Jan
|
March-April
|
|
High ranges
|
Nancha
|
May-June
|
Oct-Nov
|
|
Puncha
|
Dec-Jan
|
April-May
|
|
Kari
|
Additional crop )
|
June-July
|
Sep- Oct
|
Top
|
|
|
|
|
|