Application of soil organic matter (SOM) is one the most important strategies to enhance quality and combat climate changes by mainly increasing carbon stocks in agriculture. However, there still a lack information on respiration rate temperature sensitivity soils amended with different amendments red pepper cultivation soil. To evaluate effects resources enhancing (C) balance soil, four low-ca...

During two years, four samples per year were collected in Vietnam from rice bran, cassava residue, brewer's grain, tofu residue, soybean meal, coconut cake, sweet potato vines and water spinach for chemical analysis and assessment of water holding capacity (WHC). The selected feedstuffs represent fibre-rich plant sources and agro-industry co-products commonly used in pig feeding in Vietnam. The...

In drill-seeded, delay-flooded organic rice production, reliable predictions of N supply from cover crop (CC) residues to subsequent are still a challenge. An incubation was conducted determine the effects CC types (clover, ryegrass, clover and ryegrass mixtures, fallow), residue application rates (0, 0.6, 1.2, 1.8, 2.4%) time on soil CO2 evolution mineralization availability. The cumulative li...

in this study the effect of different nitrogen source substrates on the amount of chitosan production by aspergillus niger was investigated. a. niger ptcc 5012 from the persian type culture collection (ptcc) was grown on soy bean, corn seed and canola residues at 30 °c for specified cultivation days under sterilized conditions. chitosan was extracted from the fungal mycelia using hot alkaline a...

Cover crop management during the fallow season may play a relevant role in improving productivity and soil quality, by increasing nitrogen (N) organic carbon (SOC) accumulation, but has possibility of greenhouse gas (GHG) emissions from soil. A year-long consistency experiment was conducted to examine effects various winter covering crops on annual nitrous oxide (N2O) together with methane (CH4...

The conventional crop production practices including intensive tillage and open field residue burning in world’ largest rice-wheat system (RWS) are adversely affecting productivity besides deteriorating natural resources ecosystems’ sustainability. In order to improve productivity, potassium (K) use efficiency apparent K balance, adoption of conservation a RWS with management is considered high...

the purpose of this study was to look for carbon materials for composting with rabbit manure. rabbit manure was composted with rice straw and mushroom residues. during the composting process, different related parameters were evaluated. results showed that the rabbit manure could be normally co-composted with rice straw or with mushroom residues. the gi value showed that both composts could hel...

The toric residue is a map depending on n + 1 semi-ample divisors on a complete toric variety of dimension n . It appears in a variety of contexts such as sparse polynomial systems, mirror symmetry, and GKZ hypergeometric functions. In this paper we investigate the problem of finding an explicit element whose toric residue is equal to one. Such an element is shown to exist if and only if the as...

For the first time, a simple on-line continuous leaching method, where artificial gastrointestinal fluids are sequentially pumped through a mini-column of food while As is continuously monitored by inductively coupled plasma mass spectrometry (ICP-MS), is used to assess the bio-accessibility of As in Arabic area rice. This on-line leaching method offers several advantages over batch methods; mo...

It is shown that the extended quadratic residue code of length 20 over GF(7) is a unique self-dual [20, 10, 9] code C such that the lattice obtained from C by Construction A is isomorphic to the 20-dimensional unimodular lattice D 20, up to equivalence. This is done by converting the classification of such self-dual codes to that of skew-Hadamard matrices of order 20.