2009•Jilin Agricultural SciencesRequires access

Effect of Different Level of Nitrogen, Phosphorus and Potassium on Yield and Yield Components of Super Rice

Zhao Guo-chen

Abstract

Effect of different levels of nitrogen,phosphorus and potassium nutrition on the leaf area index,dry matter weight and yield components of super-rice ‘Jijing 88’and ‘Jijing 83’was different.The leaf area index and dry matter weight of ‘Jijing 88’,a fertilizer tolerant super-rice variety,was the best when nutrition levels was N200kg/ha,P100kg/ha and K120kg/ha.The leaf area index and dry matter weight of ‘Jijing 83’,a wide suitability super-rice variety,was the best when nutrition levels was N100kg/ha,P750kg/ha and K90kg/ha.The yield components of super-rice ‘Jijing 88’was the best when nutrition levels was N250kg/ha,P100kg/ha and K60kg/ha.The yield components of super-rice‘Jijing 83’was the best when nutrition levels was N100kg/ha,P75kg/ha and K90kg/ha.

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Key concepts: Dry matter, Phosphorus, Yield (engineering), Agronomy, Potassium, Nitrogen, Dry weight, Leaf area index