the influence of vam fungi and bacterial biofertilizer (bbf) with 50% reduction in the recommended dose of (n and p) chemical fertilizers on leaf quality traits of mulberry variety (s-13) and its impact on silkworm (pm ? nb4d2) growth and cocoon characters were studied under semi-arid conditions. four different treatments were imposed i.e., t1: control (only 100% npk); t2: vam (50% cut in p); t...

Nitrogen (N) and phosphorus (P) loading from the Mississippi/Atchafalaya River Basin (MARB) has been linked to hypoxia in the Gulf of Mexico. To describe where and from what sources those loads originate, SPAtially Referenced Regression On Watershed attributes (SPARROW) models were constructed for the MARB using geospatial datasets for 2002, including inputs from wastewater treatment plants (WW...

Biological N(2) fixation represents the major source of N input in agricultural soils including those in arid regions. The major N(2)-fixing systems are the symbiotic systems, which can play a significant role in improving the fertility and productivity of low-N soils. The Rhizobium-legume symbioses have received most attention and have been examined extensively. The behavior of some N(2)-fixin...

Root crops are an important staple food in the Pacific region. Yields are generally low and inorganic fertilizers are deemed an option to increase root crop production. The effects of inorganic N fertilizers on upland taro (Colocasia esculenta (L.) Schott) and sweet potato (Ipomoea batatas (L.) Lam.) were quantified with the aim to investigate relationships between inherent soil fertility, N up...

Drought stress is a major environmental stress that restricts plant growth and production in the majority of agricultural fields of the world. The application of different fertilizers, especially biofertilizers and organic fertilizers, might play an important role in the production of medicinal plants in order to improve their resistance to deficit water stress. In order to evaluate the effects...

Chemical nitrogen (N) fertilizers are regarded as one of the environmental contaminants in addition to necessity for fossil sources their production. Conversely, it is impossible neglect supply needed essential ingredients plant function. For organic agriculture, crucial use alternative fertilizer management reduce harmful impacts and production costs chemical fertilizers. In a one-year pot exp...

The introduction of ecological sanitation (ECOSAN) toilets in villages near Bangalore hascreated opportunities for safer sanitation and recycling of human excreta, as fertilizers, in ruraland peri-urban areas. Field experiments were conducted at the University farm on French beansand Maize as the test crops in succession for 2 consecutive years in the same field. Differenttreatment combinations...