Numerous studies have addressed effects of rising atmospheric CO2 concentration on rice biomass production and yield but effects on crop water use are less well understood. Irrigated rice evapotranspiration (ET) is composed of floodwater evaporation and canopy transpiration. Crop coefficient Kc (ET over potential ET, or ETo) is crop specific according to FAO, but may decrease as CO2 concentrati...

The problem of rice farming in Indonesia is the increasing extent nutrient-poor land due to lack addition organic matter and continuously inundated irrigated fields, causing production greenhouse gas emissions, such as methane (CH4), increase. study aims determine impact fertilizers varieties on yield, feasibility fields. used a randomized block design factorial with four replicates. first fact...

virtual water trade is investigated in industrial, agricultural, social sectors for national and global scales. in this study, interbrain virtual water was evaluated in irrigation sector for the sefidroud basin to use in the allocation of water resources. in this regard, through investigating eight cropping pattern (s1- s8) in the riverbank of qezelozan river (provinces of east azarbaijan, zanj...

Brunei has made significant progress in agricultural development over the past four decades. However, crop production, such as rice, is still insufficient to meet demands of growing population, mainly due scarcity water resources, acidic soils, and advancing environmental deterioration. This study conducted soil groundwater investigations at three selected rice cultivation sites Darussalam. The...

The capability of endophytic Trichoderma spp. to reduce sheath blight disease in rice caused by Rhizoctonia solani was assessed under the growth conditions established practices System Rice Intensification (SRI), compared those standard irrigated cultivation. seeds inoculated with a local isolate fungus asperellum SL2 were grown respective SRI and conventional or uninoculated plants then infect...

African rice gall midge (AfRGM) is one of the most destructive pests of irrigated and lowland African ecologies. This study aimed to identify the quantitative trait loci (QTL) associated with AfRGM pest incidence and resistance in three independent bi-parental rice populations (ITA306xBW348-1, ITA306xTOG7106 and ITA306xTOS14519), and to conduct meta QTL (mQTL) analysis to explore whether any ge...

Few studies have examined the use of poultry litter as an alternative to inorganic P and K fertilizers for flood-irrigated rice. The objective of this study was to compare fresh and pelletized poultry litter to inorganic P and K fertilizers to document the availability of P and K in poultry litter. Inorganic P and K fertilizers, fresh broiler litter, and pelletized litter were preplant-incorpor...

The origin of dissolved arsenic in the Ganges Delta has puzzled researchers ever since the report of widespread arsenic poisoning two decades ago. Today, microbially mediated oxidation of organic carbon is thought to drive the geochemical transformations that release arsenic from sediments, but the source of the organic carbon that fuels these processes remains controversial. At a typical site ...

CB 05022, the medium duration rice culture with the parentage of CO 43/ ADT 39 was developed at Department of Rice, TNAU, Coimbatore. The culture was evaluated at station trials and it gave 21.8% increased yield over ADT (R) 46. This culture was evaluated under AICRIP in irrigated transplanted low land ecosystem as IET 20884 for two years 2006-2008. Under IVT-IM the culture recorded a mean grai...