パイアグアスの草の形態発生,構造,化学組成は,異なる窒素用量と延期期間の下で異なる窒素用量と延期期間の下で異なる窒素用量と延期期間の下で異なる窒素用量と延期期間の下で異なる窒素用量と延期期間の下で異なる窒素用量と延期期間の間で発生した
Armando Alves de Carvalho1, Antonio Leandro Chaves Gurgel1, Miguel Arcanjo Moreira Filho1
1Professora Cinobelina Elvas Campus, Federal University of Piauí, Bom Jesus 64900-000, Brazil.
Plants (Basel, Switzerland)
|February 13, 2026
まとめ
窒素肥料はパイアグアスの草の成長と栄養価を大幅に高めます. 75 mgのN dm−3を80日間の蓄積で適用すると,飼料の生産と品質を改善するために牧草管理を最適化します.
科学分野:
- アグロノミーは農学です.
- 植物科学 植物科学について
- 動物の栄養 動物の栄養
背景:
- *ブラキアリア・ブライザンタ (Brachiaria brizantha) (パヤグアス草) は,熱帯の牧草地の主要な飼料草である.
- *効率的な管理は,生産性と栄養素の質を最大化するために不可欠です.
- * 窒素肥料と戦略的延期は,牧草管理の重要な構成要素です.
研究 の 目的:
- * 異なる窒素 (N) 施肥レベルがパイアグアスの草に与える影響を調査する.
- * 異なる貯蔵期間の飼料の特性への影響を評価する.
- * 牧草地の性能を向上させるために最適なNの適用と貯蔵期間を決定する.
主な方法:
- *ポット実験では,4x2の因数分解式でランダム化されたブロック設計を用いた.
- * 治療には4回の窒素投与 (0-75 mg N dm-3) と2回の貯蔵期間 (80日および120日) が含まれていました.
- * Brachiaria brizantha cv.の形態遺伝的,構造的,生産的,栄養的特性を評価した. パイラグアス.
主要な成果:
- * Nの量を増加させることで,葉の動力学とトイラーの密度が線形的に向上し,フィロクロンを減少させました.
- * 飼料と葉片の質量は,N受精で線形に増加しました.
- *根質は二次反応を示し,ピークは60.18 mg N dm-3でした.
- * 原蛋白質の含有量は,すべての植物部位にN肥料を施したことで著しく増加しました.
- * 重要な栄養成分に対するN用量と貯蔵期間との間に有意な相互作用はありません.
結論:
- *75 mg N dm-3の窒素受精と80日間の貯蔵を組み合わせると,棚の構造,飼料の収穫量,栄養品質を最適化します.
- * 延期牧草の有効な管理には,延期牧草の持続時間と窒素供給の同期が不可欠です.
- * 発見は,Brachiaria brizantha cv.を改善するための貴重な洞察を提供します. 熱帯牧草地の生産性と品質を高めています.
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