soil

Soil water sensors reveal subsoil conditions – Part 5: Calibration of instruments

by Frikkie Koegelenberg, Pr Eng and Hendrik Jordaan In the last edition of this series, we take a quick look at the calibration of instruments and the importance thereof. We thank the ARC Agricultural Engineering in South Africa for making their manual on soil water sensors available to the[...]

By Specialist Writer|19th December 2019|Categories: Zambia|Tags: , , |

Soil water sensors reveal subsoil conditions – Part 4: Frequency delay measurements by means of capacitance and heat pulse measurements

by Frikkie Koegelenberg, Pr Eng and Hendrik Jordaan Frequency delay measurement is based on the measurement of the dielectrical constant of soil or materials. The frequency delay measurement is also called the radio frequency (RF) capacitance technique. We thank the ARC Agricultural Engineering in South Africa for making their[...]

By Specialist Writer|25th November 2019|Categories: Zambia|Tags: , , , |

Soil preparation: Seize the big window of opportunity this planting season!

Opinion piece by Dr Ben Ngwene, AGCO While the Southern African region endures a persisting drought that started back in October 2018, planting season 2019 is fast approaching. Farmers have to make crucial decisions on how to recover from last season’s double-digit decline in crop harvests. Land preparation is[...]

By Specialist Writer|24th October 2019|Categories: Zambia|Tags: , |
0
Go to Top