I have planned to start a new research in soil fertility. Now I am looking for new areas to be addressed. Biochar or Organic matter mineralization have being suggested. I need a new area
I think , precision management of soil fertility using variable rate application is most crutial , so that variation in soil fertility could be effectively management , both spatially and temporally....
Soil spectral library for identifying different soil fertility constraints could another very fascinating field...
Crop water requirements (CWR) are defined as the depth of water (millimeters) needed to meet the water consumed through evapotranspiration (ETc) by a disease-free crop, growing in large fields under nonrestricting soil conditions, including soil water and fertility, and achieving full production potential under the given growing environment. Defining ‘crop evapotranspiration’ (ETc) as the rate of evapotranspiration (millimeters per day) of a given crop as influenced by its growth stages, environmental conditions, and crop management to achieve the potential crop production, then the CWR is the sum of ETc for the entire crop growth period. When management or environmental conditions deviate from the optimal, then that rate of evapotranspiration has to be adjusted to the prevailing conditions and is called actual crop evapotranspiration (ETa). Both CWR and ETc concepts apply to either irrigated or rainfed crops.
For irrigated crops, the concept of CWR has to be complemented by that of irrigation water requirement (IWR), which is the net depth of water (millimeters) that is required to be applied to a crop to satisfy fully its specific crop water requirement. The IWR is the fraction of CWR not satisfied by rainfall, soil-water storage, and groundwater contribution. When it is necessary to add a leaching fraction to assure appropriate leaching of salts in the soil profile, this depth of water is also included in IWR. In practice, IWR has to be converted into gross irrigation requirements to take into consideration the efficiency of the irrigation systems utilized.
Sharing link:
https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/soil-fertility
Investiga la eficiencia de absorción de los nutrientes marcados con isotopos de los fertilizantes pata mejorar la eficiencia de fertilización en diferentes suelos y diferentes cultivos
También esta por resolverse cual es el método de análisis químico del suelo que asemeje a la absorción de nutrientes por los cultivos para hacer recomendaciones de fertilización mas precisas
Organic farming effects on soil fertility is a transcendental issue
Soil fertility is the ability of the soil to support plant growth and achieve the optimum level of crop yield. Fertility can be improved by adding organic and inorganic fertilizers to the soil. Nuclear techniques provide data that improves soil fertility and crop production while minimizing environmental impact. Improving food security and environmental sustainability in agricultural systems requires an integrated approach to soil fertility management, ensuring increased crop production.
Organomineral fertilizer (organic + inorganic fertilizer)
- Badges
- Science topic
- Similar topics
- Mathematical Sciences
- Graphs