Hydrogel, biocompost and its effect on photosynthetic activity and production of forage maize (Zea mays L.) plants

Acta Agronómica

Ignacio Sánchez-Cohen¹  José Alfredo Samaniego-Gaxiola²  Aurelio Pedroza Sandoval³  Ricardo Trejo-Calzada³  Luis Gerardo Yáñez-Chávez⁴ 

[1] Centro Nacional de Investigaciones Interdisciplinarias en Relaciones Agua Suelo Planta Atmósfera-INIFAP, km 6.5 CP. 35150, Gómez Palacio, Durango, México;Centro de Investigación Regional Norte Centro-INIFAP, km 17 carretera Torreón-Matamoros, Coahuila. México;Unidad Regional Universitaria de Zonas Áridas de la Universidad Autónoma Chapingo. Carretera Gómez Palacio-Cd. Juárez, Chihuahua, km 38.5, C. P. 35230 Tel: [phone]. Fax. [phone]. Bermejillo, Durango, México;Unidad Regional Universitaria de Zonas Áridas de la Universidad Autónoma Chapingo. Carretera Gómez Palacio-Cd. Juárez, Chihuahua, km 38.5, C. P. 35230 Tel: [phone]. Fax. [phone]. Bermejillo, Durango. México;

关键词: Aridity;    biofertilizers;    edaphic moisture;    stress physiology;    corn productivity;   

DOI  :  10.15446/acag.v66n1.50868

来源: DOAJ

【 摘 要 】

The increase in the incidence and intensity of drought caused by climate change is a critical factor in agricultural production in some regions of the world. Dry lands are often severely affected by water shortages caused by low rainfall. This study evaluated the effect of compost and hydrogel used to retain soil moisture on photosynthetic activity and forage corn production. The experiment was designed as a randomized block with a split plot design; the main plots were the hydrogel application rates (0, 12.5 and 25 k.ha-1), and the subplots were the compost application rates (0 and 20 t ha-1). Photosynthetic activity increased by 20.2-28.0% when the hydrogel was applied at rates of 12.5 and 25 kg ha-1, respectively, compared with the control. As a result, the production of fresh forage increased from 19.5 t ha-1 in the control to 77.6 and 81.6 t ha-1 when the hydrogel was applied at rates of 12.5 and 25 kg ha-1, respectively. A similar effect was observed for dry matter production. The compost had a weakly effect on photosynthetic activity.

【 授权许可】

Unknown