Agro-climatic zones - Cauvery Delta Zone

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    Districts

Thanjavur, Nagappattimum, Thiruvarur, Trichy, Perambalur, Cuddalore, and Pudukkotti.

    Crops grown

Rice, Sorghum, Setaria, Pearlmillet, Sesame, Maize, Greengram, Blackgram, Redgram, Soybean, Groundnut, Sunflower, Castor, Cotton, Sugarcane and Chillies.


      Rice

Normal sowing time:
· kuruvai (June-July), Navarai (Dec-Jan) and sornavari (April-May) seasons.

Varieties suitable:
· ADT 36, ADT 37, ADT 42, ASD 16,ASD 18,ASD 20,IR50,TKM 9,IR 36,MDU 5,CO 47,ADT (R) 45,TRY (R) 2,TKM (R) 12,PMK (R) 3,ADT (R) 47 ADT (R) 48 and ADT 43 are popular among the farmers.
medium duration varieties ADT 38, 39, ADT 40 and Improved white ponni are grown in thaladi and late thaladi (Sep to Nov.) seasons
The long duration variety CR 1009 gives higher grain yield 15-17 t/ha during samba season.

Seed Rate and Spacing:
·Double row planting with spacing of 15 x 10 cm.

Land preparation:
Dry or upland system and
Wet system are existing in all rice growing areas
In upland system the crop is grown under rainfed conditions on dry ground as in case of other cereals.
In wetland system the land is flooded and puddled where the crop is grown in standing water.
More specifically rice is cultivated in four systems like.
Upland
Irrigated
Rainfed lowland and
Deep water
The land preparation varies with the system under which rice is cultivated.
Soils suitable for raising the crop.
In Tamilnadu, the paddy is grown in loams, mixed red and black soils, deltaic alluvial soils, deep and medium deep black soils, red loams and coastal alluvial soils.

Fertilizers:
Particulars Fertilizers (kg/ha)
Short duration varieties 125, 50, 50(N: P: K)
Medium and long duration varieties 150, 60, 60(N: P: K)
Hybrids 200, 50, 50(N: P: K)
Basal dose

Particulars Fertilizers (kg/ha)
Short 50, 50, 25(N: P: K )
Medium 60, 60, 30(N: P: K )
Long 30, 60, 30 (N: P: K )
Hybrids 50, 50, 12.5(N: P: K )
Top dressing
Short Medium Long Hybrid (kg/ha)
N K N K N K N K
15 DAT 25 - 20-25 DAT 30 25 25 DAT 30 - Tillering 50 12.5
30 DAT 25 25 40-50 DAT 30 30 50 DAT 30 - Panicle 50 12.5
45 DAT 25 - 60-75 DAT 30 - 75 DAT 30 30 Heading 50 12.5
100 DAT 30 -
Foliar nutrition in Rainfed rice
Foliar spray of DAP 2% + urea 1% + KCL 1% at active tillering and panicle initiation stages along with the full recommend dose of NPK for pre monsoon dry seeded rainfed rice for higher yields and net returns.



      Sorghum

Normal sowing time:
· May last week to June 2nd week.

Varieties suitable:
Thaipattam CO 21, CO 25, CO 26, BSR 1, K 4, K 8, COH 3*, COH 4*
Chithiraipattam CO 25, CO 26, BSR 1, K 4, K 8, COH 3*, COH 4*
K 9 for Tenkasi tract
Adipattam CO 21, CO 25, CO 26, BSR 1, K 4, K 8, K Tall, APK 1, COH 3*
Puratasipattam CO 25, CO 26, BSR 1, K 8, K 10, K Tall, APK 1

Seed Rate and Spacing:
· Seed rate is 15 kg/ha.

Fertilizers:
· Apply half the dose of nitrogen (45 kg/ha) and full dose of phosphorus (45 kg/ha) and potassium (45 kg/ha) before planting.
In the case of ridges and furrows, open a 5 cm deep furrow on the side of the ridge at two thirds the distance from top of ridge and the bottom. Place the fertilizer mixer along this furrow and cover with soil upto 2 cm.
In flat beds, mark lines to a depth of 5 cm and 45 cm apart. Place the fertilizer mixer at a depth of 5 cm along the lines. Cover the lines upto 2 cm from the top before sowing.
In the case of sorghum raised as intercrop with a pulse crop at 2:1 ratio (blackgram or greengram or cowpea) open furrows 30 cm apart to a depth of 5 cm. Apply fertilizer mixture in the lines in which sorghum is to be sown and cover upto 2 cm.


     Setaria

Varieties suitable:
· Nallamalla (Prasad), Lepakshi, Krishnadevaraya, Narasimharaya, Srilakshmi.

Seed Rate and Spacing:
· 5 kg/ha.

Land preparation:
· Light ploughing.

Fertilizers:
· 10 tons FYM, 40 kg N, 20 kg K2O. (on one hectare basis).


      Pearlmillet

Normal sowing time:
· June 1st week and before July 2nd week.

Varieties suitable:
· Varieties: ICMV-1155, ICMS-7703, WCC-75, Mallikarjuna, Mukta, ICMV - 221, Anantha.
· Hybrids : BKV-560, ICMH-451, ICMH-432, ICTP-8203.

Seed Rate and Spacing:
· 4 kg/ha; 45 x (12-15) cm.

Fertilizers:
· 40-60 kg N, 30 kg P2O5, 20 kg K2O. (on one hectare basis)


           Sesame

Normal sowing time:
· Up to end of June.

Varieties suitable:
· Madhavi, YLM-11, 17, Konark local, JCS-94.

Seed Rate and Spacing:
· 5 kg/ha; 30 x 15 or 30 x 10 cm.

Land preparation:
· Plough the soil for 2-4 times to get a fine tilth.
· Run harrow twice and level the field.

Fertilizers:
· 10 tons FYM, 20 kg N, 40 kg P2O5, 50 kg K2O (on one hectare basis).


         Maize

Normal sowing time:
· June 2nd week to July 2nd week.

Varieties suitable:
·Variety : CO 1, CO Bc 1 (Baby corn)
.Hybrids : CoH 1 to CoH 3

Land preparation:
· Before sowing plough the soil 3-4 times, open furrows with the spacing of 60-75 cm as ridge and furrows.

Fertilizers:
Mix any of the granular insecticides with sand to make up a total quantity of 50 kg and apply in the leaf whorls on the 20th day of sowing : Quinalphos 5 G
15 kg/ha, Carbaryl 4 G 20 kg/ha.
If granular insecticides are not used, spray Quinalphos 25 EC 1 lit or Carbaryl 50 WP 2 kg/ha on the 20th day of sowing for the control of stemborer, weevils and aphids (500 l of spray fluid/ha).


      Greengram

Normal sowing time:
· Up to 2nd week of June to July for sowing.

Varieties suitable:
· 3 (ADT 1 - 3),KM2

Seed Rate and Spacing:
· 15-16 kg/ha. for dryland crop 16-18 kg/ha; 30 x 10 cm.

Land preparation:
· Plogh the soil first with country plough followed by Gorru and bring to fine tilth using blade harrow.
· In paddy fallows direct planting is recomended.

Fertilizers:
· 20 kg N, 50 kg P2O5.


      Blackgram

Normal sowing time:
· June to July

Varieties suitable:
· ADT 3, ADT 4 and ADT 5

Seed Rate and Spacing:
· 16-18 kg/ha; 30 x 10 cm.

Land preparation:
· While prepairing a land add basal dose of fertilizer and mix thoroughly with gorru.

Fertilizers:
· 20kg N, 50kg P2O5.


      Redgram

Varieties suitable:
· LRG 30, LRG 38, ICP-8863, ICPL 332, ICPL 87119, MRG 66, ICPL 85063, LRG-41, PRG 100, WRG 27.

Seed Rate and Spacing:
· 5-7.5 kg/ha; 150 x 12 cm. or 180 x 10 cm.

Land preparation:
· Plough the soil twice before sowing and bring to a fine tilth.

Fertilizers:
· 20kg N, 50kg P2O5.


      Soybean

Normal sowing time:
· Up to July 1st week.

Varieties suitable:
·Co 1,ADT 1,CO 2

Seed Rate and Spacing:
· Black cotton soil: 50-65 kg/ha; 40 x 5cm.
· Light soil: 30 x 7.5 cm.

Fertilizers:
· 30 kg N, 60 kg P2O5, 40 kg K2O.


      Groundnut

Normal sowing time:
· Up to last week of July.

Varieties suitable:
·TMV 2, TMV 7 , JL 24 andVRI 2.

Seed Rate and Spacing:
· Spanish bunch type 100 kg/ha.
· Birginia bunch type 120 kg/ha; 30 x 10-15 cm.

Land preparation:
· Before sowing bring the soil into fine tilth using country plough and harrow.
· Level the soil using a plough.

Fertilizers:
· 10 tons FYM, 20 kg N, 40 kg P2O5, 50 kg K2O (on one hectare basis).

Inter crops :
. Intercrop groundnut and cumbu at 4:1 raio


      Sunflower

Normal sowing time:
· Between August and September.

Varieties suitable:
KBSH1

Seed Rate and Spacing:
· Varieties: 8-10 kg/ha, 45 x 30 cm.
· Hybrids: 5-6 kg/ha, 60 x 30 cm.

Land preparation:
· Plough the soil 4-5 times and bring it to fine tilth.

Fertilizers:
· 6.2 - 8 tons FYM, 20-40 kg N, 60 kg P2O5, 30 kg K2O. (on one hectare basis).


      Castor

Normal sowing time:
· June to August.

Varieties suitable:
Tenera,CO 1

Seed Rate and Spacing:
· Varieties: 8-10 kg/ha, 60 x 30 cm.
· Hybrids: 6-8 kg/ha, 90 x 30 cm.

Land preparation:
· Plough the soil during summer 2-3 times and level it with a harrow.

Fertilizers:
· 5 tons FYM, 40 kg N, 40 kg P2O5, 20 kg K2O (on one hectare basis).


      Cotton

Normal sowing time:
· Red soil: June - July.
· Black soil: July - August.

Seed Rate and Spacing:
Varieties/hybrids Spacing (in cm)
Between rows Between plants
MCU 7, LRA 5166 7,RCH 2

Varieties suitable:
MCU 7 Short duration (Jan - February) , LRA 5166Medium Duration (Jan - February),RCH 2

Fertilizers:
Varieties/hybrids Quantity of fertilizers (kg/ha)
N: P: K: N: P: K: N: P: K
Basal (18-20 DAS)
MCU 7 30 30 30 30
Top dressing(40-45 DAS)
MCU 5, MCU 5 VT MCU 9, SUVIN MCU 11 40 40 40 40,
II top dressing
(60-65 DAS) Jayalaxmi, HB 224 TCHB 213 40 60 60 40 .. .. 40 .. ..
Application of fertilizers for Ragi stubble/dibbled cotton. If heavily fertilized ragi crop precedes cotton crop reduce the ‘N’ recommendation by 25%.
Varieties/hybrids Quantity of fertilizers (kg/ha)

N: P: K: N: P: K: N: P: K
Basal (18-20 DAS)
MCU 7 22.5 30 30 22.5 .. .. .. .. ..
Top dressing
(40-45 DAS) MCU 5, MCU 5 VT MCU 9, SUVIN MCU 11 30 40 40 30 .. .. .. .. ...
II top dressing
(60-65 DAS) Jayalaxmi, HB 224 TCHB 213 30 60 60 30 .. .. 30 .. ..


      Chillies

Normal sowing time:
· July to September.

Varieties suitable:
·PLR - 1,localname 'Salem', 'Ramanand', '', 'Samba local','Sattur Samba', Co 1, Co2, K-1, K-2 .

Fertilizers:
· 25 tons FYM, 80 kg N, 40 kg P2O5, 50 kg K2O.


      Sugarcane

Normal sowing time:
· July to September.

Varieties suitable:
·CoC 671,CoC 771,CoC 772,CoC 773,CoC 800,CoC 774,CoC 775 ,CoC 776,CoC 777,CoC 778,CoC 779 ,CoC 419 ,Co 6304 ,CoC 85061,CoC 86062,CoC 86071,CoC 90063,CoC 8021,CoC 91061 , CoC 92061,Co 8362 ,CoG 93076 ,Co 8208 ,CoG 94077,CoG 95076,Co 85019,CoSi 95071,CoSi 96071,Co 8610 ,CoC 98061,CoSi 98071, Co 86249 ,COC (SC) 22 ,COC (SC) 5 ,COSi (SC) 6

Fertilizers:
· 25 tons FYM, 80 kg N, 40 kg P2O5, 50 kg K2O.

Source : CRIDA Publications, Vyasaya Panchangam, Annadata etc