At the Quilamapu Experiment Station of the Instituto de Investigaciones Agropecuarias (INIA), twelve field trials were carried out to evaluate four management practices on spring wheat cultivars, considering as response parameters, biomass production, grain yield, and sedimentation value.
In a randomized block design, the following treatments were compared:
Tl (Best management) = K + N and P + herbicide + inseeticide and fungicide T2 = Tl minus K T3 = Tl minus N and P T4 = Tl minus herbicide T5 = Tl minus insecticide and fungicide
The conclusion were:
- The most important management practice in the production of the spring wheat varieties Onda-INIA and Nobo-INIA, was the N plus P application. - In 66% of the trials, broad leaf weeds significantly decreased grain yield. - Foliar diseases and aphids slightly decreased grain yield. - Potassium did not have an effect on grain yield, even in some trials where maximum grain production reached 9,000 kg/ha. |