Machungo C, Wanjogu R.K, Owilla, B , Njoka, J.JAnzwa, M.

NIB RESEARCH WORKSHOP 13th & 14th June

Effects of Bed and Furrow Effects of Bed and Furrow Irrigation System on the Irrigation System on the Growth, Production and Growth, Production and Water use Efficiency of Water use Efficiency of

Lowland RiceLowland Rice

INTRODUCTION INTRODUCTION Water shortage in has necessitated

the development of efficient water use methods for growing major crops.

In traditional agronomic and water use practices (Irrigated puddled paddy fields), the farmers apply much more water for paddy crop than the actual requirements.

INTRODUCTION INTRODUCTION Growing paddy on beds and furrows is

an alternate, which utilizes much less water.

In Pakistan water efficiency of rice under bed and furrow systems increased to 0.39 kg/m3 of water compared to 0.20 kg/m3commonly obtained under the traditional flood irrigation method

Rice seedlings transplanted on beds and furrows

Rice paddy growing on beds and furrows

OBJECTIVEOBJECTIVE

Determine the effects of bed and furrow irrigation system on growth, production and water use efficiency of lowland rice.

Specific Specific Objectives Objectives Determine the effect of bed and furrow

irrigation system on growth and yield of lowland rice

Determine the WUE of the bed and furrow irrigation system for lowland rice

Optimize the design of bed and furrow method of irrigation to maximize, water saving and crop yield

8

Treatment

s

Description (Bed & Furrow

Configuration)

Number of

rows

T1 Bed 75cm and furrow 75 cm

with depth of 20 cm

Four rows on

bed

T2 Bed 75 cm and furrow of 38

cm with depth of 20 cm

Four rows on

bed

T3 Bed 75cm and furrow 38 cm

with depth of 20 cm

Two rows on

bed

Two rows on middle furrows

T4 Rice: Flooded Basin: Traditional transplanting

on puddled soil (Control)

METHODOLOGYMETHODOLOGY

Varieties

NERICA 4, Bas 370 and IR 2793Factorial Experiment

Split plot RCBD Design Main plot Variety – Sub plot Spacing – Sub- sub plot Factor

9

Crop Management- As per recommended practice

Data Collection Data Collection

Growth Plant height Tiller counts

Yield parameters Tiller counts at harvest – PT, NPT &

TT Panicle data- FG, SG, TG & Sterility 1000 grain weight Yield Kg/Ha

28, 42, 56 , 70 & 84DAS

DataData CollectionCollection Weeds Total, Grass, Broadleaf, Sedges

Volume of water delivered to each plot/irrigation

Rate of infiltration

Rainfall data

Depth of water

RESULTSRESULTS

NERICA 4

BASMATI 370

BASMATI 370

IR 2793

IR 2793

NERICA 4

BASMATI 370

NERICA 4

BASMAI 370

IR 2793

IR 2793

BASMATI 370

IR 2793

NERICA 4

BASMATI 370

IR 2793

CONCLUSIONCONCLUSIONThe irrigation method did not have a

significant effect on growth measured height and number of tillers over time.

Weed density was significantly higher in the bed and furrow systems compared to the basin

Crop water use efficiency higher in the bed furrow system vs. the basin.

CONCLUSIONCONCLUSION The yields did not differ

significantly between the f bed furrow system and the basin for the lowland varieties (Basmati 370 & IR2793.

The bed furrow systems evaluated did not show significant differences for most parameters evaluated.

CONCLUSIONCONCLUSION

To overcome the scarcity of irrigation water and generate higher crop yield, the bed and furrow method could be recommended for paddy cultivation

CONCLUSIONCONCLUSION

However, more field investigations are required

To refine to the configurations of bed

and furrows and rice planting system

To quantify amount of water saved

Cost benefit analysis – Establish benefits of Bed and furrow system vs Basin.

THANKYOU THANKYOU