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175

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‫1- ﻧﻮع اﻟﻌﻼﻗﺔ اﻟﻐﺬاﺋﻴﺔ ﺑﻴﻦ هﺬﻩ اﻟﺤﺸﺮات و اﻟﻨﺒﺎﺗﺎت اﻟﺰراﻋﻴﺔ ﻋﻼق ﺗﻄﻔﻞ،ﻷن اﻟﺤﺸﺮات ﺗﺘﻐﺬى‬
                                                        ‫ﻋﻠﻰ اﻟﻨﺒﺎﺗﺎت وﺗﻠﺤﻖ ﺑﻬﺎ اﺿﺮار.‬
                                     ‫2- ﻣﺜﻼ: - ﻋﺪم وﺟﻮد ﻣﻔﺘﺮس ﻟﻬﺬا اﻟﻨﻮع ﻣﻦ اﻟﺤﺸﺮات.‬
                                                             ‫- ﺗﻮﻓﺮ اﻟﻐﺬاء ﺑﻜﻤﻴﺎت واﻓﺮة.‬
                                                        ‫- ﻋﺪم وﺟﻮد ﻣﻨﺎﻓﺲ ﻋﻠﻰ اﻟﻐﺬاء‬
                                         ‫3- ﻧﻼﺣﻆ ﺗﻄﻮر اﻻرﻗﺎت ﻓﻲ اﻟﺤﻘﻠﻴﻦ ﺑﻜﻴﻔﻴﺔ ﻣﺨﺘﻠﻔﺔ.‬
                               ‫- ﻓﻲ اﻟﺤﻘﻞ1: ﺧﻼل 41 اﺳﺒﻮع ﻧﻼﺣﻆ ﺗﻄﻮر ﻣﻬﻢ ﻟﻜﺜﺎﻓﺔ اﻻرﻗﺎت.‬
 ‫- ﻓﻲ اﻟﺤﻘﻞ 2: ﺧﻼل 21 اﺳﺒﻮع ﻧﻼﺣﻆ هﻨﺎك ﺷﺒﻪ اﻧﻌﺪام اﻻرﻗﺎت ﻣﺘﺒﻮﻋﺎ ﺑﺎرﺗﻔﺎع ﻻ ﺑﺎس ﺑﻪ اﺑﺘﺪاء‬
                                                                            ‫ﻣﻦ اﻻﺳﺒﻮع 21.‬
           ‫4- ﻣﻴﺰﺗﺎ اﻟﺰراﻋﺔ اﻟﻤﺘﻨﺎوﺑﺔ : ﺗﻤﻜﻦ ﻣﻦ اﻟﺤﺪ ﻣﻦ ﺗﻜﺎﺛﺮ اﻻرﻗﺎت ﻣﻦ ﺣﻴﺚ ﻣﺪة ﺗﻜﺎﺛﺮهﺎ.‬

								
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