SA Graan Maart 2018

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89
March 2018
YEAR MONTH ROTATION 1 ROTATION 2 ROTATION 3 ROTATION 4 ROTATION 5 ROTATION 6
2015 November Soybean Soybean Soybean Soybean Soybean Soybean
December Soybean Soybean Soybean Soybean Soybean Soybean
2016 January Soybean Soybean Soybean Soybean Soybean Soybean
February Soybean Soybean Soybean Soybean Soybean Soybean
March Soybean Soybean Soybean Soybean Soybean Soybean
April Soybean Soybean Soybean Soybean Soybean Soybean
May Soybean Soybean Soybean Soybean Soybean Soybean
June - Wheat Wheat - Cover crop (W) Wheat
July - Wheat Wheat - Cover crop (W) Wheat
August - Wheat Wheat - Cover crop (W) Wheat
September - Wheat Wheat - Cover crop (W) Wheat
October - Wheat Wheat - - Wheat
November Maize Wheat Wheat Sunflower Maize Wheat
December Maize Wheat Wheat Sunflower Maize Wheat
2017 January Maize Sunflower - Sunflower Maize Sugar bean
February Maize Sunflower - Sunflower Maize Sugar bean
March Maize Sunflower - Sunflower Maize Sugar bean
April Maize Sunflower - Sunflower Maize Sugar bean
May Maize Sunflower - Sunflower Maize Sugar bean
June Maize Sunflower - Sunflower Maize -
July - - - - - -
August - - - - - -
September - - - - - -
October Soybean Maize Maize Maize Soybean Maize
November Soybean Maize Maize Maize Soybean Maize
December Soybean Maize Maize Maize Soybean Maize
TABLE 3: CROP SEQUENCING FROM 2015 TO 2017.
TABLE 4: SUMMARY OF AVERAGE CROP YIELDS IN REPLICATE TRIALS.
ROTATION SYSTEM CROP 1 YIELD (T/HA) CROP 2 YIELD (T/HA) CROP 3 YIELD (T/HA)
1 Soybean 0,94 Maize 7,06 Soybean -
2 Soybean 0,91 Wheat 1,03 Sunflower 0,63*
3 Soybean 0,85 Wheat 1,20 Maize -
4 Soybean 0,93 Sunflower 1,47 Maize -
5 Soybean 0,94 Cover crop mix 1,91** Maize 7,22
6 Soybean 0,97 Wheat 1,33 Sugar bean 0,28*
* Crop planted in one of the two replicate trials
** Dry mass yield
Spotlight on second year’s CA results
ON FARM LEVEL Conservation agriculture