Farming Systems Braden Johnston Nyabing WA Ascot Quays 7 April - - PowerPoint PPT Presentation

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Mar 21, 2023 101 likes •339 views

New Legume Species in Mixed Farming Systems Braden Johnston Nyabing WA Ascot Quays 7 April 2017 Braden Johnston bradenkate@bigpond.com Fiona Hobley fiona@hobley.net.au Overview of site Growing Motivation Harvest with Conventional Header

SLIDE 1

New Legume Species in Mixed Farming Systems

Braden Johnston Nyabing WA

Braden Johnston bradenkate@bigpond.com Fiona Hobley fiona@hobley.net.au

Ascot Quays 7 April 2017

SLIDE 2

Overview of site

SLIDE 3

Growing Motivation

SLIDE 4

Harvest with Conventional Header

Plot No Pasture Variety Height cm Pickup Feeding Seed Collection 1 Margarita Pod with Barley 12 Ok Ok Small amount 2 Bartolo Bladder Clover 5 Ok Ok Frosted 13 Scimitar Medic 2 Nil Nil Nil 24 Casbah Biserrulla 2 Nil Nil Nil 3 Prima Gland Clover 20 Good Fluffy Frosted 14 Eliza French Serredella 12 Ok Nil Nil 25 Margarita Serredella 12 Ok Ok Small amount

SLIDE 5

Harvest Comparison

Open Front Header Compared Clover Harvester Benefits Disadvantages Use existing header High risk damage to header front on low cutting No intensive labour in Feb/March period for sub clover harvesting Pastures need harvesting early which conflicts with grain harvest Ground is not exposed to wind erosion like sub clover harvesting Higher fire risk with low cutting height Additional labour already on farm at harvest time Faster process than clover harvester

SLIDE 6

Direct Harvest vs Clover Harvester

Serradella Sub Clover Direct Harvest Clover Harvestor Machine Source * MF9560 JD 8260R Fuel L/hr 60 35 Ha/hr 4 0.35 Fuel L/ha Harvest (Tractor pulling/direct harvest) 15 100 Fuel $/ha Scarifying x2

Dessication spray prior to harvest 20

Labour $/hr

35 35 Labour $ /ha 8.75 100 Total Operation Cost $/ha 43.75 210 Yield Averages ** 350kg 500kg Harvest cost $/kg seed 0.13 0.41 Seeding rate kg/ha 22 15 Seed $/ha excluding cleaning/unscarified pod 2.75 6.18 * Nyabing Growers Ben Hobley Serradella Dec 2016 and Braden Johnston Clover Harvest M ** Yield Averages estimate only not actual yield due to frost on Serradella

SLIDE 7

Inoculant important on correct pastures

SLIDE 8

What We Got out of it - Practice Change

Motivation to produce better pastures
Variety Adoption Margarita and Bartolo
Harvesting aerial seeded varieties is achievable Bartolo, Prima

and Margarita.

Frost impacted aerial seeded varieties, except Scimitar Medic

and Bartolo Bladder

Twin Sowing presents opportunity with compromise
Early sowing pastures in dry conditions
Pasture sowing with discs has increased
Inoculating new legume pasture species important

SLIDE 9

Pasture Attributes at Nyabing Demo Site

Year 1 Biomass Production Bartolo Bladder Clover Margarita Serradella Prima Gland Eliza Serradella Dalkeith Sub Clover Year 3 Regeneration Bartolo Scimitar Medic Dalkeith Prima Gland Margarita Biserrula Seed Production Year 3 Dalkeith Scimitar Medic Year 2 – sown to Barley Crop Hard seeded Bartolo low numbers Mass germination numbers Prima

SLIDE 10

SLIDE 11

SLIDE 12

Seed Regeneration

SLIDE 13

SLIDE 14

Nitrogen Story

Legume Pasture Contribution Soil N Leaf Tissue N % Crop Yield

SLIDE 15

Results – N at Depth - Soil Test April 15

SLIDE 16

Results – N % of Total Tissue Test July 2015

SLIDE 17

Barley Crop Yield 2015

SLIDE 18

Yield x N Rate

SLIDE 19

Yield Map Barley After Pasture

SLIDE 20

Dry Sowing Pod vs Scarified

SLIDE 21

Alosca vs Nodulator

SLIDE 22

Growing more

High biomass pastures contribute more N
ALOSCA and Nodulator were similar, except leaf N%

increase with Nodulator

Dalkeith sub clover is a top performer
Bartolo, Prima and Margarita high biomass
Medic performed well in year 3
Aerial seeded varieties are frost prone