Effect of Nitrogen on the Alleviation of Boron Toxicity in Rice (Oryza SativaL.)

Autor:	M. Maftoun, Hadi Koohkan
Rok vydání:	2014
Předmět:	inorganic chemicals Oryza sativa Physiology Potassium chemistry.chemical_element Zinc Nitrogen Boric acid chemistry.chemical_compound Animal science Agronomy chemistry Urea Boron Agronomy and Crop Science Calcareous
Zdroj:	Journal of Plant Nutrition. 38:1323-1335
ISSN:	1532-4087 0190-4167
Popis:	Pot experiments were conducted in the greenhouse on a calcareous soil to study effect of nitrogen (N) on the alleviation of boron (B) toxicity in rice. The treatments consisted of factorial combination of six levels of B (0, 2.5, 5, 10, 20, and 40 mg kg−1 as boric acid), and four levels of N (0, 75, 150, and 300 mg kg−1 as urea) in a completely randomized design with three replicates. Boron addition (higher than 2.5 mg kg−1) significantly reduced the seeds yield. Nitrogen addition alleviated the growth suppression effects caused by B supplements. Yield was increased by application of 2.5 mg B kg−1 at all N levels, but at higher levels, B significantly decreased the yield of rice. Boron concentration declined with increasing N levels. Boron application increased the concentrations of B, potassium, phosphorous (P), and zinc. Nitrogen application decreased the concentration of Zn and increased the concentration of N and P.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e372d41b798b6fffc80ec4b4d6a835d3 https://doi.org/10.1080/01904167.2014.991035 Zobrazit plný text záznamu