Read e-book online Water Productivity in Rainfed Agriculture: UNESCO-IHE PhD PDF

By Hodson Makurira

The problem of water shortage due to inadequate seasonal rainfall and dry spell occurrences in the course of cropping seasons is compounded via inefficient agricultural practices through smallholder farmers the place insignificant soil and water conservation efforts are utilized. The speculation of this learn is that a number of the prior study efforts have taken a fragmented method of take care of the demanding situations dealing with subsistence farmers in rainfed structures.

The examine has been carried out within the semi-arid Makanya catchment of northern Tanzania and has effectively utilized varied analytical options to raised comprehend soil and water interactions at box scale. it's been tested that there's certainly scope to extend crop water productiveness supplied the neighborhood farmers undertake extra effective cultivation thoughts. vast yield raises happen because of diverting runoff and those additional increase whilst different suggestions resembling ripping, software of manure and canopy cropping are brought. This confirms that no unmarried answer exists to unravel the matter of low yields in rainfed farming structures.

However, regardless of those promising effects, the learn has proven that there's room to extra enhance the potency of crop water use via development in study ways and exploration of higher techniques.

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Additional info for Water Productivity in Rainfed Agriculture: UNESCO-IHE PhD Thesis

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Control The common cultivation practice by using the hand hoe under strict rainfed systems. 42 Research sites and observation techniques Since the individual farmers have been allowed to manage their farms as far as possible, the level of adoption of the advanced techniques differed between farmers.

The scenario described in this section of low and highly variable rainfall potential, high evaporation rates, threats of exceedance of carrying capacities of soils and a general lack of resources to purchase appropriate seed, fertiliser, pesticides and herbicides. This combination of unsuitable conditions does not favour the cultivation of sensitive but preferred crops like maize. Instead, less water demanding crops should be explored. Consideration of virtual trade is another possibility since, in general, the farmers prefer to store their wealth in the form of livestock.

8). , 2007). The drainage is defined by fault lines that intersect the catchment (Mul, 2009). 2 BACKGROUND TO THE DEVELOPMENT OF TESTED TECHNIQUES The research has tested alternative farming practices which have the potential to demonstrate that more efficient farming practices exist and which, if adopted, can result in significant changes in general livelihoods through increased crop productivity. , 2001). The research prioritised simple and Water productivity in rainfed agriculture 35 affordable solutions which are more likely to be taken up by the community after the expiry of the research period.

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