Leaching and nitrous oxide (N2O) emissions can represent substantial nitrogen (N) losses from chemical fertilizers, slow-release fertilizers (SRFs) mitigate these effects. Thus, biochar be an alternative agronomic environmental point of view to synthesize SRFs due its physicochemical characteristics. We investigated the effect nitrogenous organomineral (OMF-N) formulated based on activated N by...

This study aimed to evaluate the production and quality of açaí seedlings regarding presence absence controlled-release fertilization under different shading levels. The was conducted at experimental field Embrapa - Acre, using a completely randomized design in 4 x factorial arrangement. factors included four evaluation periods (60, 120, 180, 240 days after transplanting) environments (20%, 30%...

Abstract:Ensuring food security, increasing farmers’ income and improving people’s living standards are the focus of attention all countries in world today. “Centrey Tianwang” biological organic fertilizer has been upgraded to multi-functional innovation, accepted as a new invention patent. multifunctional is long-term natural with high concentration. It kind slow-release fertilizer, both quick...

A variable rate fertilizer system was developed for control of fertilizer amount by optical sensor measured NDVI of crop. The paper analyzes the input and output conditions of control system, and designed hardware, algorithm and control of fertilizer, mainly software flow and a feedback control way. In the paper, the variable-rate control system consisted of 6 optical sensors mounted on a boom ...

Precision agriculture is the developing trend of modern agriculture, and the rational utilization of fertilizer is one of the key technologies in the precision agriculture, which needs to fertilize variably according to the crop needs and soil fertility conditions. Thus a fertilizer automated proportioning equipment is developed to Proportion the three fertilizers: Nitrogen fertilizer, Phosphor...

Just after transplanting, the vegetable has difficulty in nutrients uptake. To explore the effect of different fertilization on spring cabbage (Brassica oleracea L. var. capitata) production and fertilizer use efficiencies, this experiment consisting of six treatments was implemented and divided into three groups: 1) no fertilizer (NF) and vegetable planting fertilizer (VPF); 2) conventional fe...

The inherent problems associated with inorganic fertilizer such as scarcity and high cost informed the invention of cocoa pod husk based organic fertilizer. The impact of the fertilizer on cocoa output is hereby investigated in this study. The study was conducted in Cross-River State, Nigeria and purposive random sampling technique was used to select fifty cocoa farmers including the user and n...