GROWTH AND QUALITY OF Cassia grandis Linnaeus f. SEEDLINGS IN RESPONSE TO PHOSPHATE FERTILIZATION AND LIMING

被引：15
作者：
Sampaio de Freitas, Eliane Cristina [1 ]
de Paiva, Haroldo Nogueira [2 ]
Leite, Helio Garcia [2 ]
de Oliveira Neto, Silvio Nolasco [2 ]
机构：
[1] Univ Fed Vicosa, Dept Engn Florestal, Ciencia Florestal, Av PH Rolfs S-N,Campus Univ, BR-36570000 Vicosa, MG, Brazil
[2] Univ Fed Vicosa, Dept Engn Florestal, Av PH Rolfs S-N,Campus Univ, BR-36570000 Vicosa, MG, Brazil
来源：
CIENCIA FLORESTAL | 2017年 / 27卷 / 02期
关键词：
seedling production; plant nutrition; phosphorus; PHOSPHORUS;
D O I：
10.5902/1980509827732
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
This study aimed at evaluating the growth and seedling quality of Cassia grandis Linnaeus f. in response to liming and phosphate fertilization. The treatments were arranged in a factorial design of 6 phosphorus levels (0, 120, 240, 360, 480 and 600 mg dm(-3)) by 5 base saturation levels (3,5 (original), 25, 40, 55, 70 %), in randomized blocks with four replicates. The height of the aerial part (H), collar diameter (DC), dry matter of shoot (MSPA), dry matter of root (MSRA), and total dry matter (MST) were determined at 65 days after the transplanting. The relation between dry matter of shoot and dry matter of root (MSPA/MSRA) and Dickson quality index (IQD) were calculated at this stage. There were significant effects from the phosphate fertilization to all studied variables. Based on this study, the recommended P dose for quality seedling production of Cassia grandis is 600 mg dm(-3), for 25% of substratum's base saturation.
引用
收藏
页码：509 / 519
页数：11
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