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Crop Circle and Green Seeker NDVI SDI cotton Lubbock, 2008 - Fluid ...

Crop Circle and Green Seeker NDVI SDI cotton Lubbock, 2008 - Fluid ...

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Economic optimum nitrogen rate (EONR) for lint, seed <strong>and</strong><br />

lint + seed, <strong>Lubbock</strong>, TX, 2007-09 ($0.50/lb lint, $0.55/lb N)<br />

Quadratic-plateau<br />

for lint<br />

Quadratic-plateau<br />

for seed<br />

Quadratic-plateau<br />

for dollar value of<br />

lint + seed<br />

Reflectance-1 N rate<br />

--------------------------------------------------- lb N ac -1 --------------------------------------------------<br />

2007<br />

35 41 38 62<br />

<strong>2008</strong><br />

68 57 71 46<br />

2009<br />

22 29 23 24

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