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sub soil constraint

Catalogue: GRDC Updates
Chickpeas provide an excellent break crop and gross margin opportunity for growers, and many are now realizing the importance of break crops in a farming system with the current expense of nitrogen... Operationally chickpeas fit very well into many farming systems, often being able to be sown before cereals and generally harvested after... Harvesting on time should be a priority in such a high valued crop...
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Catalogue: GRDC Updates (North)
Overall, our conclusion is that while many current uses of yield maps will tolerate low to moderate GPS error, the inability to procure accurate GPS signals will hinder the development of more sophisticated applications of the information for the interpretation of crop behaviour and machine guidance... SSC's limit crop production by limiting crop rooting depth limiting effective plant available water content (PAWC), as well as having direct toxic and nutrient imbalance effects 3... The proportion of the total seasonal water use which is used by a crop after flowering goes a long way to determining the yield and quality of the grain produced...
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Catalogue: GRDC Updates (South)
Overall, our conclusion is that while many current uses of yield maps will tolerate low to moderate GPS error, the inability to procure accurate GPS signals will hinder the development of more sophisticated applications of the information for the interpretation of crop behaviour and machine guidance... SSC's limit crop production by limiting crop rooting depth limiting effective plant available water content (PAWC), as well as having direct toxic and nutrient imbalance effects 3... The proportion of the total seasonal water use which is used by a crop after flowering goes a long way to determining the yield and quality of the grain produced...
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