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) can be lost in subsequent generations unless certain techniques are used. maize breeding in prehistory resulted in large plants producing large ears. modern breeding began with individuals who selected highly productive varieties in their fields and then sold seed to other farmers. james l. reid was...
. it is a form of fertilizer that was used by humans when they first discovered farming but has since largely fallen into disuse due to the easier availability of chemical fertilizers. organic fertilizers improve the soil even after the plants have used the nutrients in them and improve the composition...
in costs of production of specific domestic and foreign goods. the main outlet for polish international market, that is export (about % of export in general) and at the same time main delivery market for polish economy (about % of import in general), especially in the range of capital and delivery goods...
the s virtually all the remaining coffee planters in ceylon switched to the production and cultivation of tea. [ ] foundation of tea plantations[ edit ] james taylor in kandy , sri lanka in s in a tea plant was brought (smuggled) to ceylon by the british from china and was planted in the royal botanical...
"plants cannot scurry up a mountainside" one of the first, if not the first article to explore the impact of climate change on medicinal and aromatic plants was published in herbalgram in (issue: , pages: - ). the extensive article explored many aspects of climate change, including the impact on...