The recent shift from transplanted to wet seeded rice (Oryza sativa L.) in South East Asia has resulted in major weed problems which require more labour and energy for their control. Field experiments were conducted during 1994±1996 on a Chromic Vertisol in central Luzon, the Philippines, to study the effect of water, tillage and herbicide levels on total water use, weed growth and yield of wet...

This study explores the potential of visible and near infrared (vis-NIR) spectroscopy for online measurement of soil organic carbon (SOC). It also attempts to explore correlations and similarities between the spatial distribution of SOC and normalized differential vegetation index (NDVI) of a wheat crop. The online measurement was carried out in a clay vertisol field covering 10 ha of area in K...

This study aims to obtain the best indigenous bacteria in increasing sulfate levels vertisol soil through oxidation process of sulfur sulfate. The was conducted polybags with media a screen house, Bulakelor Village, Keanggungan District, Brebes Regency. experiment arranged using completely randomized design (CRD) two factors. first factor is type bacteria: Control (B0); Bacillus sp (B1); Burkho...

A study was conducted in an ongoing field experiment started during 2007-08 at Central Sugarcane Research Station, Padegaon, Maharashtra 2012-13 and 2013-14 to the effect of integrated nutrient management on yield quality pre-seasonal ratoon sugarcane (cv. CO-86032). The consisted eight (INM) treatments viz., 100 % RD through organics (T1), NPK inorganic (T2), Fertilizer as per soil test, FYM b...

Health of any soil is influenced by its physical properties to greater extent which has been more prominent in Vertisols due their self-till behavior. Differential application nutrients long-term may alter the at temporal and spatial scales. Inventory on effect different nutrient management practices across depths, especially central India, insufficient. Present study examined (48 years) combin...

Soil nutrients in deep soils are important for nutrient cycling and plant growth. Organic amendments have been widely used enhancing soil health crop yield. However, little is known about the effects of organic on vertical distributions nutrients. Based a 32-year long-term amendment experiment, objective this study was to evaluate changes distribution soybean–wheat system Vertisol. The results ...

The natural abundance of 13C was used to estimate the turnover of the soil organic matter in a vertisol re-grassed with Digitaria decumbens (C4 plant) following intensive market gardening (C3 plants). In addition, the experimental design allowed us to determine the respective roles of roots and earthworms (Polypheretima elongata) in soil C stock restoration in D. decumbens pasture. The C stock ...

The fractal approach to the study of soil structure, its dynamics, and physical processes appears to be a useful tool in reaching a better understanding of system performance. Nevertheless, the precise concurrent analysis of soil physical properties and fractal parameters seems to be important in order to evaluate the applicability of fractal concepts to soil science. The objective of this stud...