A TDR device generates an electrical signal and sends it through steel probes in the soil. The device measures the time it takes for the pulse to travel to the end of the probe and back. The travel time is then used to calculate the soil moisture content. The cost of aTDR device range...
To calculate ADFI:ADFI=FeedconsumedperpenforaparticularfeedingphaseAnimaldaysforapen The FCR for a particular feeding phase was calculated as the amount of feed consumed per kilogram of weight gain:FCR=ADFIADG 2.7. Statistical analysis The experiment was carried out as a randomized block design, with...
This commercial construction schedule Excel template allows you to list project activities, start and end dates, duration, and percentage complete. Track the progress of construction with a built-in Gantt chart. Follow the steps below to learn how to create a construction schedule using this templ...
However, conventional tillage may increase compaction of soil below the depth of tillage (i.e., formation of a plough pan), the susceptibility to water and wind erosion and the energy costs for the mechanical operations [15]. In recent years, the promotion of less intensive tillage practices ...
(3) The row of sown seeds was excavated and the distance from the frame top to the seeds’ placement was measured with the same profilometer. From the average of these distances the average of the distances from the frame top to the soil surface was subtracted to calculate the seedbed dept...
To calculate Te, the first step was to establish a calibration equation (using the earlier gamma-identity GLM) between plot B and plot A in the NT phase: 𝑄NTobs B=𝑎×𝑄NTobs A+𝑏Qobs BNT=a×Qobs ANT+b (1) where 𝑄NTobs BQobs BNT and 𝑄NTobs AQobs ANT are event...