نتایج جستجو برای: no tillage rice field
تعداد نتایج: 3927488 فیلتر نتایج به سال:
Abstract Traditional rice ( Oryza sativa L.) cropping systems under flooding irrigation combined with conventional tillage management are increasing threat due to a loss of soil quality and scarcity water resources, especially in Mediterranean environments. Hence, the development such strategies as no-tillage, application organic amendments, water-saving methods could be vital enhancing sustain...
paddy rice residue covers more than 60000 ha of the khuzestan plain. high soil moisture content (low evaporation and heavy soil texture), time limitations, and the likelihood of rainfall make conventional tillage methods unsuitable for wheat cultivation after the rice harvest. the present study investigated the best residue management method, and fuel and time savings, to produce acceptable yie...
Introduction Conservation tillage has been one of the most rapidly adopted agricultural practices of the past 15 years (CTIC, 1983). The primary impetus for conservation tillage has been decreased soil erosion; fuel, labor, and machinery costs; and increased soil water storage and yields (USDA, 1975). Conservation tillage may be broad ly defined as tillage practices that reduce soil and water ...
A field study was conducted to assess the effects of soil tillage practices and straw management on soil CO2, and yield-scaled CO2 emissions in a rain-fed summer corn field on the Loess Plateau. Tillage treatments consisted of sub-soiling tillage (CP), no tillage (NT) and moldboard plow tillage (CT). Wheat straw was removed from half of the CP, NT and CT plots after harvest, allowing us to test...
The effect of different tillage systems on the size distribution of aggregates and organic carbon distribution and storage in different size aggregates in a Hydragric Anthrosol were studied in a long-term experiment in Chongqing, China. The experiment included three tillage treatments: conventional tillage with rotation of rice and winter fallow (CT-r) system, no-till and ridge culture with rot...
Irrigated rice (Oryza sativa L.) production is associated with frequent cycling between anaerobic and aerobic conditions, which can lead to a greater rate of soil organic matter (SOM) decomposition, thus potentially increasing soil bulk density (BD) over time. A study was conducted in the Mississippi River Delta region of eastern Arkansas, USA to evaluate the long-term effects of rice-based cro...
Rice–wheat cropping system is very common in India. It contributes to over 70% of total food grain production in the country with an area of 12 M ha under this cropping system. However, it is estimated that under rice and wheat crops separately the area is 42.31 and 22.98 M ha respectively. Looking to the above facts a study at farmer’s field of Ambedkar Nagar district was under taken to evalua...
conservation tillage, a fast growing practice in iran, is considered as a means to achieve sustainability in agricultural systems. this study was carried out to determine the effect of tillage systems (no-tillage, minimum tillage and conventional tillage ) on yield and yield components of three irrigated wheat varieties. the field experiment was conducted at the experimental station of the univ...
To evaluate the effects of tillage and planting systems on soil physical properties, grain yied and its components, and milling recovery of rice (cv. Hashemi), an experiment was conducted at Rice Research Institute of Iran in 2017 and 2018 cropping seasons-using split plot arrangements in randomized complete block design with three replications. The experimental factors were; tillage methods (m...
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