You are here

crop response

Categorised under:

Catalogue: GRDC Publications
" Goondiwindi GRDC Grains Research Update Day 1 - Tuesday 4 th March Time Topic Speaker (s) 10:00 AM James Clark (Chair Northern Welcome Panel GRDC) 10:10 AM General plenary (Supported by North West Local Land Services) 10:10 AM 10:40 AM.. Overall, both models are acceptable for modelling soil evaporation over a range of soils and seasons provided accurate soil physical properties and starting water states are known... Overall, populations increased five times compared to before planting the summer crops, but remained below 250/kg soil (Figure 4)...
Related categories:
Concepts:
Catalogue: GRDC Updates
Soil testing can be used to assess the likely nutrient constraints, but soil testing and soil test interpretation is not a precise science... To summarise a number of trial results, some sites had consistent increases in crop growth for crop-after-crop; others were more hit-and-miss... Nutrient rates used are 40 kg P (MAP or a fluid source), 200 kg K (SOP or MOP), and 40-80 kg S (SOA or ATS), with the high application rates designed to allow impacts to be followed through an extended crop rotation...
Related categories:
Catalogue: GRDC Updates
Dry weight response of crops to increasing P levels with and without mycorrhizal fungi in the soil... Unlike saprobic soil fungi, which colonise and break down organic matter and do not require a host plant in the system to complete their lifecycle, arbuscular mycorrhizal fungi (AMF), the type found in cropping systems, do require the presence of a host to reproduce and are called obligate symbionts... Having adequate populations of mycorrhizal fungi present in soils can be beneficial and in some cases essential for crop growth...
Related categories:
Catalogue: GRDC Updates
At Gindie we produced an extra 600 kg/ha sorghum in 2011/12 and an extra 500 kg/ha chickpeas in 2013, which would return an extra $320/ha for the first 2 crops after application using average crop values... At Jandowae we produced an extra 0.5 t/ha wheat in a dry 2009 winter, followed by an extra 1.5 t/ha sorghum in 2010/11 which would return an extra $425/ha for the first 2 crops after application... At Wondalli we produced an extra 500 kg/ha sorghum in 2008/09 followed by an extra 650 kg/ha wheat in 2011, which would return an extra $263/ha for the first 2 crops after application using average crop values...
Related categories:
Catalogue: GRDC Updates
Precision agriculture (PA) involves a range of methodologies and technologies which aim to improve the precision of agricultural management in spatially-variable fields... The research investigates the potential of using a combination of EMI sensing in conjunction with differential fertilizer management to optimize the match between spatially-variable plant water demand and plant available water... Brooke Sauer PCT Ph: 0427 090 279 Email: brooke@pct-ag.com < Keep browsing 0 Responses to Optimising crop potential using PA tools..
Related categories:
Catalogue: GRDC Publications
Rhizobia R hizobia are living micro-organisms (also called root-nodule bacteria) n odules on legume roots contain rhizobia, which fix nitrogen from the air Ea ch type of legume is nodulated by a specific type of rhizobia, which are identified as belonging to different "inoculant Groups" R hizobia in inoculants do not survive well in extremes of temperature (over 30 C and at freezing temperatures) or drying conditions that lead to desiccation Di fferent legume-rhizobia associations will tolerate different soil conditions... Generally rhizobia preferences are similar to those of the legume host - medic, pea, faba bean and chickpea rhizobia prefer neutral to alkaline soils (ph CaCl2 6.0 - 7.5) - lupin rhizobia tolerate acid soils (ph CaCl2 less than 6.0) 2 Photo: G. CumminG.. Always apply the seed dressing first and allow it to fully dry before applying the rhizobia as a second process Al ways use inoculants before their expiry date R eseal opened bags of peat inoculant and use them within 2 weeks of first opening the bag..
Related categories:
Catalogue: GRDC Publications
Rhizobia R hizobia are living micro-organisms (also called root-nodule bacteria) n odules on legume roots contain rhizobia, which fix nitrogen from the air Ea ch type of legume is nodulated by a specific type of rhizobia, which are identified as belonging to different "inoculant Groups" R hizobia in inoculants do not survive well in extremes of temperature (over 30 C and at freezing temperatures) or drying conditions that lead to desiccation Di fferent legume-rhizobia associations will tolerate different soil conditions... Generally rhizobia preferences are similar to those of the legume host - medic, pea, faba bean and chickpea rhizobia prefer neutral to alkaline soils (ph CaCl2 6.0 - 7.5) - lupin rhizobia tolerate acid soils (ph CaCl2 less than 6.0) 2 Photo: G. CumminG.. Always apply the seed dressing first and allow it to fully dry before applying the rhizobia as a second process Al ways use inoculants before their expiry date R eseal opened bags of peat inoculant and use them within 2 weeks of first opening the bag..
Related categories:
Catalogue: GRDC Research Summaries
" Eyre Peninsula Farming Systems 3 Responsive Farming Systems.. This project builds on the communication networks, grower groups, research team and reputation developed through two prior GRDC funded Eyre Peninsula (EP) Farming Systems projects that were highly successful in engaging growers, researchers and agribusiness on EP and in promoting relevant outcomes for the community and the grains industry... Eyre Peninsula Farming Systems Summary 2008 (Summary of research results and relevant agricultural information, available free to all farmers on EP and is also sent to other regions and interstate, 1200 copies) Eyre Peninsula Farming Systems Summary 2009 Eyre Peninsula Farming Systems Summary 2010 Eyre Peninsula Farming Systems Summary 2011 Eyre Peninsula Farming Systems Summary 2012 One poster and two papers presented at the 14th Australian Agronomy Conference Global Issues Paddock Action in Adelaide in September 2008...
Related categories:
Catalogue: GRDC Media
The Farm Business Update on March 12 will provide a unique opportunity for growers and advisers to learn from and network with leading industry professionals... The Farm Business Updates are an initiative of the GRDC Southern Regional Panel and since their inception they have played a successful role in enhancing growers' knowledge and understanding of farm business issues... Region South < Keep browsing 0 Responses to Farm business issues on the agenda at Finley forum..
Related categories:
Catalogue: GRDC Publications
We in the north are still working out where and how best to use P in our fertiliser programs... The representation for different crop species, soil types and seasons is somewhat limited... GRDC Grains Research Update Goondiwindi, March 2014 Figure 3...
Related categories:

Pages