Nitrogen-fixing bacteria and organic ameliorant for corn growth and yield increment in Inceptisols.

Autor: Hindersah, Reginawanti, Kamaluddin, Nadia Nuraniya, Fauzia, Shabrina Rahma, Setiawati, Mieke Rochimi, Simarmata, Tualar
Předmět:
Zdroj: Journal of Degraded & Mining Lands Management; Apr2022, Vol. 9 Issue 3, p3445-3452, 8p
Abstrakt: Since Inceptisols, in general, contain low soil organic matter and major plant nutrients, inorganic fertilizers are commonly added during corn cultivation. In order to maintain long-term soil health and fertility, biofertilizer and organic ameliorant application are suggested. The addition of nitrogen (N)- fixing bacteria (NFB) can benefit plant growth through the supply of available nitrogen for plant uptake. Organic ameliorants can enhance soil chemical and biological properties. A field trial had been performed to observe the effect of biofertilizer and organic ameliorant on corn growth, N status in soil and plant, and the yield and waste of corn. The experiment was designed in a Completely Randomized Block Design that consisted of four treatments and six replications. The treatments were 1.2 kg/ha N-fixing mixed biofertilizer, 2 t/ha organic ameliorant, and mixtures of biofertilizer and ameliorant. Control plants received neither biofertilizer nor ameliorant. The experiment results found that N-fixing biofertilizer and ameliorant increased plant height, fully-developed leaves number, soil reaction and N uptake of corn compared to the control. The total-N content was slightly increased after NFB inoculation with and without amelioration over other treatments. Plots treated with biofertilizer and ameliorant produced a higher grain weight compared to the control treatment. Corn wastes such as empty corn cob and husk weight were increased in plants treated with biofertilizer, ameliorant and a combination of both. This study suggested that the combined application of biofertilizer and ameliorant produced 66% more grain yield and 84 % more cob and husk waste compared to untreated plants. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index