sample harvester News
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Nitrogen soil tests - Do they always reflect what is going on?
Do soil tests always reflect what’s going on? Emphatically, NO. The usefulness of nitrogen (N) soil testing is frequently a topic of discussion in both academic and farming circles. Those for the negative generally cite variability involved in sampling, lack of analytical laboratory accuracy and/or precision and lack of response calibration as factors that influence their position. While they ...
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Pakistan needs a new crop forecasting system
Pakistan's outdated crop yield forecasting system needs a revamp, says Ibrar ul Hassan Akhtar. Like most developing countries, Pakistan is staring at the spectre of food insecurity, with its food production out of sync with population growth. The food availability scenario is further complicated by changing weather patterns with recurring severe droughts and floods that affect crop production. ...
By SciDev.Net
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Vegetables can absorb heavy metals from contaminated irrigation water
Certain vegetables take up heavy metals from contaminated water used for irrigation, a new study finds. The researchers grew vegetables in greenhouses similar to field conditions in Greece and found that concentrations of nickel and chromium increased in potatoes and onions, but not in carrots, when irrigated with water containing contaminant levels similar to those found in industrial ...
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