Double rice (DR) and upland crop-single rice (UR) systems are the major rice-based cropping systems in China, yet differences in net global warming potential (NGWP) and greenhouse gas intensity (GHGI) between the two systems are poorly documented. Accordingly, a 3-year field experiment was conducted to simultaneously measure methane (CH4) and nitrous oxide (N2O) emissions and changes in soil or...

Inoculant of Trichoderma fungi was used to treat into rice straw at different times for decomposition to study “Effect of decomposed rice straw at different times on rice yields”. The decomposed rice straw at 1, 2, 3, 4 weeks gave C/N ratio from 24.12 31.71 in dry season and from 16.64 31.12 in wet season, these C/ N ratio was lower as compared to rice straw, which was not treated by inoculant ...

A field experiment was conducted on “Effect of foliar spray Nano urea yield and economics rice (Oryza sativa L.) at Bihar Agricultural College Farm, Sabour during kharif season 2022 in randomized block design (RBD) with six treatments four replications. The results showed that highest number tillers meter-2, panicles filled grains panicle- 1, 1000-grain weight (g), grain (4899 kg ha-1) straw 60...

This study investigated the optimum mixture ratio of greenhouse tomato plant residues, wheat straw, and separated dairy manures for composting. Five 127-L laboratory-scale bioreactors were used to investigate the effect of separated dairy manure addition on the composting process of a tomato plant residues-wheat straw mixture. The wastes were mixed at 5 different ratios during the trials and we...

A batch anaerobic test was conducted to evaluate the effects of adding high carbon content of corn straw to the digestion of Taihu blue algae to attain an optimal C/N ratio for higher methane yield. The addition of corn straw in algae at a C/N ratio of 20/1 increased methane yield by 61.69% at 325 mL g(-1)VS(-1) (compared with 201 mL g(-1) VS(-1) of algae digestion alone), followed by C/N ratio...

to identify the high yielding lines with optimal characteristics, 40 recombinant inbred lines derived from a cross between ‘norstar’ (winter wheat) and ‘zagros’ (spring wheat) cultivars were examined using a randomized complete block design with three replications in 2014 at the research station of faculty of agriculture, university of tabriz, iran. the measured characters consisted of peduncle...

Abstract: Increased crop density and use of herbicides are two important components of integrated weed management program in wheat but no much information is available on combined effects of these two treatments. A field experiment was conducted to determine the interaction effect of increasing seed rates and weed management treatments on monocot and dicot weeds, grain and straw yield and uptak...

Rice (Oryza sativa L.) is one of the major food crops in many countries. As the cultivation of rice requires huge volume of water, long term use of arsenic contaminated groundwater for irrigation may result in the increase of arsenic concentration in the agricultural soil and eventually accumulation in rice plants. Thus a micro level study was conducted to investigate the transfer of arsenic fr...

Feedlot performance was studied in a 262-d trial using 126 crossbred beef steers (182 kg initial BW) to determine whether source of dietary roughage influences performance and carcass characteristics by steers fed growing (112 d) and finishing (150 d) diets with various flake densities (FD) of steam-processed sorghum grain. A 3 x 3 arrangement of treatments (two pens of seven steers each) was u...

Efficacy of some insecticides (pymetrozine 50WG, sulfoxaflor 24SC and imidacloprid 17.8SL) was evaluated against rice white backed plant hopper (WBPH) Sogatella furcifera Horvath. Sulfoxaflor @218.7 g a.i./ ha pymetrozine 50WG @ 187.5 gave significantly results (7.57 7.82/ hill, respectively).However, highest grain straw yield (40.87 64.33 q/ ha) observed with 50WG@ 218.7 (40.41 64.22 ha). Rega...