The level of soil fertility plays a decisive role in the growth and development crops agricultural production. Reasonable fertilization time is great significance for maintaining improving fertility, increasing crop yield, economic benefits. Rice one main grain China, its yield quality are influenced by natural environment, variety, water content, fertility. Among them, has greatest impact on r...

The majority of crop-growing areas in China have low or medium fertility levels, which limits the yield crops grown those areas. Fertilizer application can improve soil quality, but effects such treatments vary depending on base fertility. However, specific differences associated with different fertilizer types to soils varying levels yet be clearly delineated. Here, influences several physical...

introduction using agro-industrial by-products in ruminants feeding could help in semi arid climate condition throughout the year. raisin by-product is produced in huge magnitude in malayer city, hamedan province. local different raisin by-products which produced during machinery cleaning and sorting of sun dried treated grapevine cluster (vitisvinifera l. cv. sultana), are as:1) some outer lay...

Nitrogen (N) and potassium (K) fertility management of maize (Zea mays L.) in the humid subtropical Mississippi Delta may differ from a temperate climate because of its use in rotation with cotton (Gossypium hirsutum L.), soil temperatures rarely falling to 08C, and heavy winter rains that facilitate nutrient losses. An experiment to determine the [N] (concentration 1⁄4 [ ]), phosphorus [P], [K...

Whereas public information campaigns have failed to reverse the rising trend in obesity, economists support food taxes as they suggest they can force individuals to change their eating behavior and make the agro-food industry think more about healthy food products. Excise taxes based on the unhealthy nutrient content would be more effective since they impact more on unhealthy food products than...