The archipelago has the highest crop yields in Finland per unit area because of the mild climate and fertile soil.
As part of a drive to give China the highest crop yields in the world in the mid-1950's, Mao Zedong began his so-called Four No's Campaign, putting millions of people to the task of trying to eliminate rats, sparrows, flies and mosquitoes.
With the increase of straw return rate, the crop yields first increased and then decreased, and the 50%S treatment had the highest crop yields.
Get the dose and timing right and you can have a higher crop yield and a higher weed yield at the same time and also use less herbicide.In this section Games people play Moon river?
Therefore, this experiment showed that Kala compost creates good media for producing higher crop yield as compared to NPK.
Over fertilization of nitrogen (N) in the premise of higher crop yield has sometimes led to build up of residual soil nitrate and pollution of ground water.
Soil salinization is a major limitation to high crop yield in saline soils of the Hetao Irrigation District of Inner Mongolia, China.
This high crop yield variability characterizes rainfed farming system in Ethiopia in general and in the central Rift valley (CRV) in particular (Seleshi and Demaree 1995; Conway and Hulme 1993).
However, the problem associated with the continuous use of chemical fertilizer is that while it can lead to high crop yield; it may cause pollution of ground water after crop harvest (Gordon et al. 1993), and have adverse effects on plant quality.
Furthermore, hybridization had two drawbacks: first, the obtainment of a high crop yield requires the appropriate application of inputs together with proper irrigation (Spielman et al., 2013) and, second, the constant and exorbitant use of fertilizers and pesticides results in soil depletion and pesticide resistance which, in turn, trigger increased usage of these chemical inputs.
