rabi season 2015-16 trials

Rice Science for a Better World

Rabi Season 2015-16 Trials

(G9: Polder Community Water Management)


• Traditional Rice-Traditional Sesame/Mungbean• Aman rice harvest in December, no fertilizer and crop

management other than weeding• Soil remain too wet to plough until February• Farmer usually plough land in mid-Feb wait for soil to dry

out and arrival of 4-wheel tractor from Jessore• Sesame/mung established in the 2nd half of Feb

Background

Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun

Traditional Rice Sesame Mungbean


• Poor & delayed germination of dry season crops due to lack of moisture

• No cultural management other than weeding

• Harvest: last wk of May/early June• Crop damaged by – Pre-monsoon rainfall in 2012-13

& 2013-14 rabi season prior to harvest

– Farmers’ could not established crops in 2014-15 due to rainfall in Jan and Feb 2015

Background


Traditional vs Improved Cropping Pattern

Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun

Traditional Rice Sesame Mungbean

HYV Sesame Mungbean

HYV Rice

Wheat

Maize/Sunflower

Maize/Sunflower


Fultala

WMU1 HYV Rice-RabiTrad Rice-SesameImproved drainage

WMU2Trad Rice-SesameImproved drainage


Basurabad & Bhennabunia

BasurabadHYV Rice-Rabi CropsSemi-Improved drainage

BhennabuniaTrad (Rice+Fish)-Sesame Farmer water mangt


• WMU1 (Fultala):– Terminal drainage: mid-November 2015– Ploughing: mid-January 2016– Crop establishment: 3rd week of January 2016 • Crop – traditional (sesame/mungbean)• Seed rate & crop mngt: farmer practice• No fertilizer, no irrigation, no pest disease control• Weeding: farmer’ practice

• WMU2 (Fultala): Terminal drainage: 4th wk of Nov 2015 – Trad Rice-Sesame/Mungbean(FP)

• Bhennabunia: Trad (Rice+fish)-Sesame/Mungbean (FP)

Traditional Cropping (Fultala+Bhennabunia)


• WMU1 +Basurabad– Ploughing: mid-Jan 2016/early Feb 2016• Sesame (BARI Til 4) in 3rd wk of Jan 2016–Seed rate: 5 kg/ha–Row spacing: 30 cm–Fertilizer: 100-130-40-100-2-8 kg/ha Urea-

TSP-MoP-Gypsum-Zinc-Boron• Mungbean (BARI Mug 6) in mid-Feb 2015–Seed rate: 25 kg/ha–Row spacing: 30 cm–Fertilizer: 40-80-30 kg/ha Urea-TSP-MoP

Traditional Cropping (Fultala+Basurabad)


• WMU1 +Basurabad (for HYV Sesame/Mungbean)• Fertilizer –Basal (all fertilizer) at final land preparation–Basal PKZnSB plus 50%N+ rest 50% N will be

topdressed at flowering (25-30 DAS)• Irrigation:–No irrigation/rainfed–One irrigation at flowering to topdress N

fertilizer 25-30 DAS• Other management practices will be the same as

farmers’ practice

Traditional Cropping (Fultala+Basurabad)


• High value and high yielding rabi crops will be established by zero/minimum tillage

• Wheat (BARI Gom 25/26/27/28 saline/heat tolerant)– Establishment in the 1st week of Dec 2015 • Surface seeding in line/broadcast (cowdung

coated seed)• Strip tillage

– Seed rate: 125 kg/ha– Row spacing: 20 cm– Fertilizer: 180-140-40-110-4-5 kg/ha Urea-TSP-

MoP-Gypsum-Zinc-Boron

Improved Cropping (WMU1 + Basurabad)


• High value and hybrid rabi crops will be established by zero/minimum & conventional tillage

• Maize (hybrid Pacific 984)– Dibbling in non-tilled saturated soil in the 1st week

of Dec 2015– Strip tillage in the 1st week of Dec 2015– Conventional tillage in the 2nd week of Jan 2016– Seed rate: 25 kg/ha– Spacing: 75 cm x 25 cm– Fertilizer: 500-240-180-240-10-5 kg/ha Urea-TSP-




• High value and hybrid rabi crops will be established by zero/minimum and conventional tillage

• Sunflower (hybrid Hysun33)– Dibbling in the 1st week of Dec 2015 in non-tilled

saturated soil– Conventional tillage in the 2nd week of Jan 2016– Seed rate: 6 kg/ha– Spacing: 50 cm x 25 cm– Fertilizer: 180-150-120-120-8-10 kg /ha Urea-TSP-




• Fertilizer: – Basal (all fertilizer)– Basal + TD (1-2) depending on water availability in

canals• Irrigation:– Rainfed– Irrigation (1/2) at TD– Irrigation at 50 kPa at 37.5 cm depth



• Mulching to address soil cracking – Standing rice straw: 0, 15, 30 cm– Surface spreading of rice straw @5 t/ha (~ 5 cm

thick)– Green/live mulch: grass pea, field pea, cowpea

seed broadcast 2 weeks before rice harvest at recommended rate or when soil moisture permits

– Crack measurement at different mulching• Tensiometer: at 7.5 cm, 22.5 cm, 37.5 cm & 52.5 cm

depth to monitor soil moisture



– Emergence– Plant density– Crop development, height at different growth

stages and yield components• Wheat–Crown root initiation, booting, heading,

flowering, grain filling, physiological maturity–Plant height, spike/m2, grains/spike, 1000

grain wt

Crop data monitoring


• Sunflower–Flower bud initiation, Flowering start, 80%

hard seed, Physiological maturity–Plant height, head dia, floret/head, floret

fertility, 1000 seed wt• Maize: –Taselling, Silking, Milky kernel, Physiological

maturity–Plant height, cob length, cob dia,

kernels/cob, 1000 kernel wt



• Sesame & Mungbean–Vegetative, Flowering, Pod formation,

Physiological maturity–Plant/m2, pod/plant, seed/pod, 1000 seed

wt– Grain and straw yield of all rabi crops



• Irrigation water• Decagon weather station to be installed at the

study site– Rainfall, T max-min, RH max-min, Solar Rad

• Tensiometer for soil moisture dynamics• Weather data from BMD Khulna– RF, EV, Tmax-min, Sun shine, RH

Water & climatic data monitoring


• Economics of rice and rabi crops cultivation• Monitoring all activities jointly by the project staff

(BRAC/BRRI) and participating farmers• Input use and cost• Labor use per activity and wage rate• Farm gate and market price of the commodity

produced including grain and straw

Crop economics


• Mat nursery preparation for machine transplanting• Rice-Fish• HYV sesame, mungbean and wheat seed production – use

and marketing• Sunflower oil production, home consumption and marketing

by WMG’s destitute women – collect seed from each household– extract oil by using traditional GHANI – distribute among HHs – take 20% oil from each HH (need negotiation with

community)– OTHER OPTIONS??– Can we develop an extension agent

Women Livelihood


Thank You