The cumulative and residual effects of integrated nutrient management of kharif rice on soil enzyme activities i.e urease, phosphatase, dehydrogenase and cellulase at different growth stages of rabi greengram were tested in an Inceptisol in North Coastal Zone of Andhra Pradesh during rabi 2009 and 2010. Results revealed that all the cumulative treatments showed higher soil enzyme activities at ...

Warangal District, Andhra Pradesh, India, is a key cotton-growing area in one of the most closely watched arenas of the global struggle over genetically modified crops. In 2005 farmers adopted India’s first genetically modified crop, Bt cotton, in numbers that resemble a fad. Various parties, including the biotechnology firm behind the new technology, interpret the spread as the result of farme...

Bush bean, long bean, mung bean, and winged bean plants were grown with N fertilizer at rates of 0, 2, 4, and 6 g N m(-2) preceding rice planting. Concurrently, rice was grown with N fertilizer at rates of 0, 4, 8, and 12 g N m(-2). No chemical fertilizer was used in the 2nd year of crop to estimate the nitrogen agronomic efficiency (NAE), nitrogen recovery efficiency (NRE), N uptake, and rice ...

We used a survey of attendees of an organic farming conference in Minnesota, U.S.A., to determine whether farmers would be more likely to adopt a fall-seeded winter rye cover crop preceding soybeans if doing so could aid in the suppression of soybean aphid, Aphis glycines Matsumura (Homoptera: Aphididae). Of the 24 soybean growers that responded to our survey, 22 indicated that they would be mo...

Honeydew excreted by phloem-sap sucking scale insects (Ultracoelostoma sp.) living in the bark of beech (Nothofagus solandri) trees growing at a high elevation (900 m) site in the Craigieburn range of Canterbury, New Zealand, was measured over four days during 1–10 May 1996. Average standing crop of honeydew sugar was 3.1 mg m-2, and ranged from 0.4 to 5.5 mg m-2. Daily production of honeydew s...

Developmental senescence is a coordinated physiological process in plants and is critical for nutrient redistribution from senescing leaves to newly formed sink organs, including young leaves and developing seeds. Progress has been made concerning the genes involved and the regulatory networks controlling senescence. The resulting complex metabolome changes during senescence have not been inves...

Crop diversification has been identified as a tool to improve both productive and environmental performances of organic horticulture. We tested the introduction faba beans in tomato cropping system—both preceding crop strip (SC)—under different fertilization strategies—faba residues, animal manure, vegetable compost. studied: (i) nutrient uptake yield quality; (ii) soil-N P, N-budget, mycorrhiz...

Conservation tillage is expected to have a positive effect on soil physical properties, soil Carbon (C) storage, while reducing fuel, labour and machinery costs. However, reduced tillage could increase soil nitrous oxide (N2O) emissions and offset the expected gains from increased C sequestration. To date, conservation tillage is barely practiced or studied in Bosnia and Herzegovina (BH). Here,...