Effect of phosphate fertilizer in the ratio in percentage of Infection on corn Sesamia cretica Led. And relationship to yield production
ANBAR JOURNAL OF AGRICULTURAL SCIENCES,
2010, Volume 8, Issue 2, Pages 117-123
AbstractExperiment was made in AL- Qadisiyah province on maize during the autumn season 2007, to know the impact of four levels of phosphate fertilizer (zero, 160, 200, 240 kg P2O5/ h) and two batches.First add all the amount of phosphate fertilizer at one time when agriculture, and the second was added in two waves, when agriculture first and the second after (45 days) from the first installment. Used in the experiment design sectors indiscriminate full R.C.B.D. Used the seeds of Class of (IPA 3003) parents of hybrid maize. Results showed that the level fertilizer 240 kg P2O5/ ha in reducing the incidence of insect after (8, 10, 12 weeks) and at harvest amounted to (2.34, 4.00, 7.86, 15.26)%, respectively, compared to the treatment of comparison and level fertilizer 160 kg P2O5/ h which gave the highest rate of incidence of this insect, also gave the same level fertilizer increase in the sum total of the plant and the winning 5,648 and 6,141 and 7,288 and 8,056 tons / h respectively in the above levels of fertilizer.
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