To the question "Can nutrition affect earliness?" the answer must be a definite Wes". Further, it will be just as important a factor as irrigation or pest management.

In 1985 one of the main questions asked by growers was "How does Deltapine 90 and Siokra compare with Deltapine 61?". Now in 1986, the questions is "How does Deltapine 90 compare with Siokra?".