1. The 2:4 maize–double cowpea system consists of a repeating sequence of 4 rows of cowpea alternated with 2 rows of maize. Maize and cowpea are planted on the same day. The second cowpea crop is planted after the first has been harvested (about 60 days after planting).1The objective of this trial...



  2. Plants contain oxalates for a few reasons. The first is that plants do not have an excretory system like animals, so oxalates allow plants the ability to bind up excess calcium (Webb 1999).Plants high in oxalates can have negative effects on the ability of animals to absorb calcium after eating...



  3. The 2:4 maize–double cowpea system consists of 4 rows of cowpea and 2 rows of maize, all planted on the same day. The second cowpea crop is planted after the first has been harvested (about 60 days after planting).1 The maize and cowpea are densely planted. The objective of this trial is to gain...



  4. Salt buildup typically occurs in dry areas where evaporation exceeds precipitation. Over time, as water evaporates, the minerals left behind begin to accumulate. Plants need a certain amount of soluble salts, but when the salt content of soil water is greater than that of the water inside plant...





  5. Some tropical crops contain cyanogenic glycosides, toxic substances that release hydrocyanic acid (HCN; also referred to as cyanide) when cells are crushed. Consuming these plants without cooking them can cause cyanide poisoning, with varying effects depending on cyanide levels and how long a...



  6. After modifications to the ECHO Global Seed Bank storage unit, seed storage techniques already in use were assessed for effectiveness in achieving appropriate seed storing conditions within the renovated cooling and dehydrating system.Seed type influenced the effect of container on relative...



  7. 2017-11-01 Can biochar replace perlite in seedling mix? Perlite is light weight, sterile, porous, increases drainage, improves aeration, and helps to keep soil unsaturated and un-compacted. Bio-Char is light-weight, sterile, porous, and holds water without getting saturated, giving it the potential to...



  8. 2017-11-01 A large percentage of the world's hungry people are primarily vegetarians, and even vegans, either due to religion or poverty. Although some might find that a sad fact, the reality is that a whole foods, plant-based diet can produce the world's healthiest people, as a National Geographic reporter...



  9. 2017-11-01 While availability of food calories has paralleled human population growth in Rwanda, the supply of highly nutritious foods -such as complete protein, fats, and micronutrients -remain insufficient in the Rwandan diet. Past research has shown the barriers to Rwandans raising chickens to be a lack...



  10. 2017-11-01 By integrating legumes intoc ropping systems, small-scale farmers in low-resource settings can invest in the long-term health and resilience of their soils. Success or failure depends largely on choosing the right legume(s). Selection or screening trials are use ful experiments that direct...



  11. 2017-11-01 Green manures / covercrops (GMCCs) are widely recognized as having potential to help farmers improve crop yields and maintain high soil quality. Developed by the International Institute of Tropical Agriculture, 2-4-2 is an intercropping strategy in which two rows of maize are alternated with four...



  12. 2017-11-01 Insect pests can result in substantial losses of stored seed. In West Africa, cowpea bruchids (Callasobruchus maculatus) caused up to 100 percent damage of cowpea seeds stored for a few months (Sallam 1999). Primary pests are those that, in larval stage, feed within intact kernels. Others, such...



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  14. 2016-01-20 Moringa is known for its ability to grow in a wide range of soils. We hypothesized, however, that moringa leaf production can be increased by applying fertility inputs at the base of the trees. We wanted to know: Do moringa trees benefit from fertility inputs? If so, how many grams of nitrogen...