Balancing the need to increase crop yields with the need to reduce the environmental impacts of fertilizers will pose major policy, regulatory, and extension challenges for China. A growing number of studies have demonstrated the potential for improving fertilizer use efficiency in China, but it ...
Yunju L
,
Kahrl F
,
Jianjun P
,
Roland-Holst, D.
,
Yufang S
,
Wilkes, Andreas
,
Jianchu X
,
[Fertilizer use patterns in Yunnan Province, China: implications for agricultural and environmental policy]
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Fertilizer use patterns in Yunnan Province, China: implications for agricultural and environmental policy
Microdosing, the point-source application of a reduced fertilizer rate within 10 days of sowing, has increased short-term crop yields across the Sahel and is being actively scaled up as an agronomic practice. However, there is no information on the long-term effects of the technique upon soil fer...
Adams, Alexis M.
,
Gillespie, Adam W.
,
Kar, Gourango
,
Koala, Saidou
,
Ouattara, Badiori
,
Kimaro, Anthony A.
,
Bationo, B. André
,
Akponikpè, Pierre B.I.
,
Schoenau, Jeff J.
,
Peak, Derek
,
[Long term effects of reduced fertilizer rates on millet yields and soil properties in the West-African Sahel]
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Long term effects of reduced fertilizer rates on millet yields and soil properties in the West-African Sahel
Assesses the performance of phosphate rock compared to other phosphates on cereals and feed crops, and the conditions under which it raises yield. Anayses its profitability.
Seyoum, E.
,
McIntire, John M.
,
[Etude bibliographique et analyse economique de l'effet des phosphates naturels sur certaines plantes cultivees de l'Afrique de l'Est]
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Etude bibliographique et analyse economique de l'effet des phosphates naturels sur certaines plantes cultivees de l'Afrique de l'Est
It has been repeatedly argued that mineral fertiliser application combined with in situ retention of crop residue biomass can sustain long-term productivity of West African soils. Using 20-year experimental data from southern Togo, a biannual rainfall area, we analysed the effect of two rates of ...
Kintché, K.
,
Guibert, H.
,
Sogbedji, J.M.
,
Levêque, J.
,
Bonfoh, Bassirou
,
Tittonell, Pablo A.
,
[Long-term mineral fertiliser use and maize residue incorporation do not compensate for carbon and nutrient losses from a Ferralsol under continuous maize-cotton cropping]
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Long-term mineral fertiliser use and maize residue incorporation do not compensate for carbon and nutrient losses from a Ferralsol under continuous maize-cotton cropping
Andrieu, Nadine
,
Vayssières, Jean-François
,
Corbeels, Marc
,
Blanchard, M.
,
Vall, Eric
,
Tittonell, Pablo A.
,
[From farm scale synergies to village scale trade-offs: cereal crop residues use in an agro-pastoral system of the Sudanian zone of Burkina Faso]
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From farm scale synergies to village scale trade-offs: cereal crop residues use in an agro-pastoral system of the Sudanian zone of Burkina Faso
The fast depletion of available potassium (K) in soils of the subhumid zone (SHZ) of Nigeria has become a problem for the formulation of fertilizer recommendations, especially in the grass/legume mixtures of the fodder bank system. Five different K fertilizer recommendation models viz. Control, C...
Tening, A.S.
,
Omueti, J.A.I.
,
Tarawali, G.
,
[Potassium requirements of a grass/legume pasture established on selected soils of the subhumid zone of Nigeria]
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Potassium requirements of a grass/legume pasture established on selected soils of the subhumid zone of Nigeria
Reports the response of two stylo cultivars, viz, stylosanthes hamata cv verano and stylosanthes guianensis cv cook to 'Kanwa' - a naturally occuring salt traditionally used as a cattle lick - but which shows the presence of various essential nutrients for plants. Discusses the implications to ag...
Mohamed-Saleem, M.A.
,
Otsyina, R.M.
,
[Effect of the naturally occurring salt 'Kanwa' as a fertilizer on the productivity of Stylosanthes in the subhumid zone of Nigeria]
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Effect of the naturally occurring salt 'Kanwa' as a fertilizer on the productivity of Stylosanthes in the subhumid zone of Nigeria
Eight chemical methods were employed for estimating the available P in 32 Ethiopian soils using Phasey bean (Macroptilium lathyroides c.Murray) as a test crop grown in small pots in a glasshouse and the soil test values then correlated with plant characteristics. Olsens' method gave the highest c...
Mamo, T.
,
Haque, I.
,
[Phosphorus status of some Ethiopian soils. III. Evaluation of soil test methods for available phosphorus]
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Phosphorus status of some Ethiopian soils. III. Evaluation of soil test methods for available phosphorus
The effect of the interaction of shoots and roots of intercropped wheat (Triticum durum var. Boohai) and clover (Trifolium quartinianum A. Rich) on the dry matter yield of shoots and roots and on the seed yield of wheat and clover was studied in wooden boxes in the dry and wet seasons with and wi...
Dauro, D.
,
Mohamed-Saleem, M.A.
,
[Shoot and root interactions in intercropped wheat and clover]
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Shoot and root interactions in intercropped wheat and clover
Promiscuous soyabean varieties have potential to contribute significantly to income generation, food security and soil N budgets on smallholder farms. One of the major factors limiting this potential is farmers preference to allocate nutrient resources to food security cereal crops on the most f...
Zingore, Shamie
,
Murwira, HK
,
Delve, Robert J.
,
Giller, Ken E.
,
[Variable grain legume yields, responses to phosphorus and rotational effects on maize across soil fertility gradients on African smallholder farms]
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Variable grain legume yields, responses to phosphorus and rotational effects on maize across soil fertility gradients on African smallholder farms