SpectraCrop Plant Vitality and P-Tester User Manual Download | Manualshive

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User Manual for

SpectraCrop Plant

Vitality and P-Tester

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Summary of Contents for Plant Vitality and P-Tester

Page 1: ...1 User Manual for SpectraCrop Plant Vitality and P Tester...

Page 2: ...and Conditions 3 2 Introduction 4 3 SpectraCrop Plant Vitality and P Tester 6 3 1 Flow Chart 6 4 How to Perform a Measurement 8 5 The SpectraCrop App 10 5 1 New 10 5 2 List 13 5 3 Map 18 5 4 User 19 6...

Page 3: ...ument must happen in accordance with the user manual and users must be aware of the limitations of the technique 2 Data obtained by the P tester are automatically stored on a server owned by SpectraCr...

Page 4: ...e transient from a healthy plant B A fluorescence transient from a healthy control and a P deficient plant Note that the x axis is on a logarithmic scale The chlorophyll a fluorescence transient is al...

Page 5: ...urves are easy distinguishable It is based on the deviations within this area that the P tester is calculating the P status of the plant As the process of photosynthesis is the same for all higher pla...

Page 6: ...ester is accompanied with a handy suitcase 3 1 Flow Chart The flow of data after a measurement with the P tester is presented in Figure 3 Leaf measurements are transferred via Bluetooth to the Spectra...

Page 7: ...low chart of the use of the P tester Bluetooth connection ensures transfer of the measurements to the SpectraCrop app whereas the phone must send and receive data to obtain the P diagnose from the ext...

Page 8: ...d leaf clip with open shutter Right Mounted leaf clip with closed shutter to begin dark adaption period Perform measurement After a 25 minutes dark adaption the measurement can be performed not a prob...

Page 9: ...9 Figure 5 The P tester attached to a leaf clip and ready for measurement It is critical that the shutter is not opened before a tight fit between the device and the clip is obtained...

Page 10: ...e app you will see four main menu items along the bottom of the screen New List Map and User Figure 6 Figure 6 Left SpectraCrop app from Apple App store Right The appearance of the app including the 4...

Page 11: ...rred it will be notified on the app Please note that if you perform a new measurement while the app is transferring the prior reading it might delay the transferring It is therefore recommended to wai...

Page 12: ...nts it will take close to two minutes 50 measurements will take 5 minutes 100 measurements will take 9 minutes and 200 measurements will take 18 minutes for completing the transferring Note that GPS r...

Page 13: ...cribing the fluorescence transient Baseline fluorescence F0 and time for reaching maximum fluorescence T Fm Finally the P diagnose is revealed by the colour of the plant leaf at the far right Figure 9...

Page 14: ...e PE value is below 0 65 the plant is too affected to allow a P diagnosis and no data will be returned from the server as it will not reflect the true P concentration in the leaf Plant vitality index...

Page 15: ...rey which means that the P diagnose hasn t been calculated yet After the readings have been processed by the server the P diagnose will be divided into 3 categories Green colour means healthy yellow c...

Page 16: ...to have an impact on the parameters especially T Fm High temperatures followed by high solar radiation will typically result in T Fm values above 700 If multiple purple coloured measurements are obta...

Page 17: ...upper right This enables you to sort the readings by either date or P diagnosis Figure 13 By pressing a number of actions are made available Marked readings can be shown on a map or their fluorescenc...

Page 18: ...t actions with the marked readings right 5 3 Map In the Map menu the readings appear based on their associated GPS coordinates including the colour code from the P diagnose Figure 14 This gives a quic...

Page 19: ...ss to the server and synchronize your readings to obtain the P diagnosis As a first time user you need to create a user profile to connect to the server Press the Synchronize readings button and wait...

Page 20: ...Left Screenshot of the User menu As a first time user you need to create a user before you have access to the server Middle Screenshot when you have logged Right Screenshot when the synchronization i...

Page 21: ...but have now adjusted the growth to the prevalent conditions and are now capable of completing their life cycle It is important to be aware of this scenario As P is a mobile plant nutrient the younges...

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