Planning for mung beans
What to consider for planting
AFTER a very rough summer with just enough early rain to entice an October/November planting operations in many areas, we then had big falls of rain in February to produce a partial to large recovery in many sad crops. Mung beans seemed to recover the best of many crops. However we may have two very distinct stages of development that will impact on our desiccation timing decisions.
This can be a common problem where we have very brown/black or mature pods and then further in the bush, we have many green or slightly yellow pods and the decision when to desiccate becomes more difficult.
The first thing is to be able to determine what percentage of pods are physiologica mature and it does not necessarily depend on colour of the pod. Physiological maturity across all crops is basically when the seed or kernel is separated from the plant. This means anything to do to the main body of the plant cannot impact on the seed.
Sorghum has black point, maize has black layer and mung beans have been known as separation or abscission layer. The easiest way to judge this physiological maturity is by getting the questionable mung bean pod and gently slitting open the entire length of the pod. You then turn the pod upside down and if all the seeds fall out of the pot like the bottom picture, then that entire pod is classed as Physiological mature or PM.
You can then make a decision of what level of PM is across the paddock. So over 90 per cent is our acceptable level of desiccation and I make no bones about it, the judging of this 90 per cent level is fairly difficult in a multi-stage crop.
You have got possible impending wet weather conditions, header availability, wind direction for your Glyphosate, Reglone or Ally only herbicide options, so the past couple of weeks in your mung bean crop’s life can be difficult. Even with my long years of experience, I do make lengthy inspection times over all areas to make the best decision.
It is not all about yields in mung beans, it’s also about quality for dollar returns.
❝Mung beans seemed to recover the best of many crops. — Paul McIntosh
PLANS TO PLANT: Paul McIntosh said mung beans recover from various conditions the best of many crops.