Gewas Reflectie Sensoren Voor On-The-Go Variabel Doseren & Karteren

Transcriptie

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2 Gewas Reflectie Sensoren Voor On-The-Go Variabel Doseren & Karteren

3 Relatie tussen Zon en Plant

4 Celstructuur en Reflectie

5 Celstructuur en Reflectie Bare Soil VISIBLE Reflectance Controlled by Leaf Pigments NEAR-INFRARED Reflectance Controlled by Cell Structure

6 Remote Sensing

7 Gebruikt Rood & NIR Infrarood Weergave NDVI - Biomassa Dag en nacht inzetbaar Geen invloed van wolken en zon GreenSeeker Sensor

8 Sensor Field of View (FOV)

9 Basis GreenSeeker RT200 Systeem

10 GreenSeeker Sensors kijken recht naar beneden over rij/gewas. NDVI waardes varieren gebaseerd op grootte en kleur van het gewas.

11 Wat de sensor leest 0.35 NDVI ~ 50 cm mais NDVI ~ 75 cm mais NDVI ~ 100 cm mais NDVI ~ 125 cm mais.

12 Applicatie grafiek

13 Display geeft waardes weer en logt data Rate 11.6 Rate Cal 11.0

14 Nitrogen Fertilizer Rates: Not an easy target Rethinking Nitrogen, by Liz Morrison, The Corn and Soybean Digest, Jan 2007 New Univ. of Minn. nitrogen recommendations with soil scientists George Rehm and John Lamb. The new recommendations evolved from two decades of N-response trials across a wide range of production environments in seven Corn Belt states. The field trials were conducted on non-irrigated sites using either spring preplant or sidedress N application. Data were gathered for both corn following corn (CC) and corn following soybeans (SC). In a surprising finding, these experiments showed no relationship between optimum corn yields and the amount of N needed to produce those yields, Rehm says. Experiments in Minnesota, for example, found that in continuous corn, it took from 0 to 160 lbs. of N/acre to grow 150-bu. corn. Similar variation was seen across the Corn Belt. In other words, high corn yields don't indicate high N need.

15 Nitrogen Fertilizer Rates- Not an easy target. Rethinking Nitrogen, (Cont.) The answer: The soil supplies unpredictable amounts of N. Plantavailable N varies widely from year to year and field to field, depending on factors such as organic matter, crop rotations, drainage, tillage and weather. Productive soils can supply a tremendous amount of N, Rehm says. The environmental conditions that contribute to high yields also help release N from soil organic matter. Without adding any N, corn yields throughout the Corn Belt average about 55% of optimum in continuous corn and about 70% in a soybean-corn rotation, he says..

16 Yield (Bu/Acre) Nitrogen Fertilizer Rates- Not an easy target. 180 University of Nebraska, Irrigated Corn Study # 270# Year

17 Nitrogen Fertilizer Rates- Not an easy target Maximum Realized Yield Trend Line (Yield Goal) Should we fertilize for maximum trend line yield every year? Actual Realized Yield

18 Stikstofvenster Wij hebben genoeg N om ons potentieel te bereiken, en laat ons vertellen hoe groot wij worden. Als zij met meer N groter worden, dan kunnen wij dat ook!

19 Stikstofvenster lezen

20 Gewas Algoritmes en Applicatie Grafiek

21 GreenSeeker NDVI Map High Vigor Low Vigor

22 GreenSeeker Stikstof Toedienings Kaart Low Rate High Rate

23 GreenSeeker Uitgevoerde Bewerking Kaart Low Rate High Rate

24 Opbrengst Kaart Highest yield consistent with NDVI map. Improved yield from high rates

25 Samengestelde Grafiek

26 NDVI Kaart van 22 Hectare Katoen GreenSeeker : ~ 22 Hectare

27 Vergelijking met Vliegtuigopname GreenSeeker : Aerial Image: ~ 40 Acres 2 Meter Aerial Image

28 RT200 Kaarten Application: GreenSeeker Hoge vitaliteit ~ 80 Acres Lage vitaliteit Toe te dienen Toegediend

29 RT200

30 RT 220

31 GreenSeeker Resultaten: Tarwe en Mais Tarwe Gemiddelde extra financiele opbrengst; 19 per hectare Extra financiele opbrengst in de vorm van minder kunstmest of meer kunstmest en meer opbrengst! Deze cijfers zijn zeer afhankelijk van de gehanteerde prijzen! *Urean / 100 ltr Tarwe / 1000 kg Jan ,- Jan ,- Dec ,50 Dec ,50

32 GreenSeeker Resultaten in Tarwe Praktijkvoorbeeld, Dahlen Oost-Duitsland 3000 HA April e gift. Normale afgifte 217 KG KAS Greenseeker KG Gemiddelde afgifte 187 KG Besparing 30 KG 30 KG 0,35* 10,50/HA Totale besparing seizoen TON!!!!!!! *Marktprijs Februari 2009

33 GreenSeeker

34 GreenSeeker

35 Variabel klappen-spuiten

36 Sensispray..\Sensispray\VIDEO_TS\VIDEO_TS.IFO

37 Bedankt Bedankt