ข้อใดคือประโยชน์ของธาตุคาร์บอน

㹨ӹǹ�ҵ��÷��ת��繵�ͧ��͡��ԭ�Ժ��͡�͡ �͡�� 16 �ҵ��� �� 3 �ҵ� ��ת��Ҩҡ�ҡ��й�� ͹ ( C) ��ਹ (H) ��͡��ਹ (O) ��ǹ�ա 13 �ҵع�� ת��ͧ�ٴ�֧��Ҩҡ�Թ ��觸ҵ��ҹ��Ҩҡ��üؾ��µ�Ǣͧ��ǹ��͹Թ��ѵ��Թ��ѵ��㹴Թ ��ö�觵��ҳ��ת��ͧ�� 2 �� �� ˸ҵ� ��Ш�Ÿҵ�


	1. �˸ҵ� (macronutrients)

�˸ҵ��͸ҵ��÷��ת��ͧ��㹻��ҳ�ҡ ��Ҩҡ�Թ�� 6 �ҵ� �� ਹ (N) ��ʿ�� (P) �� (K) �� (Ca) �� (Mg) ��С��жѹ (S) �� 2 ��

	�ҵ��ѡ �� ҵػ�� �� ਹ (N) ��ʿ�� (P) �� (K) ��ͧ�ҡ��ҵع��ת��ͧ��㹻��ҳ�ҡ ��ѡ��Ѻ�ҡ�Թ��§�͡Ѻ��ͧ�� ͧ��

	�ҵ��ͧ �� (Ca) �� (Mg) ��С��жѹ (S) �繡��ת��ͧ��㹻��ҳ��¡�� ջѭ�ҢҴ�Ź㹴Թ�� ͹��ҵ��á

2. ��Ÿҵ� �� ҵ�� (micronutrients)

��Ÿҵ��͸ҵ��÷��ת��ͧ��㹻��ҳ�� 7 �ҵ� �� (Fe) ��ҹ�� (Mn) ��͹ (B) ��Ժ�Թ�� (Mo) �ͧᴧ (Cu) �ѧ�� (Zn) ��Ф��չ (Cl)

��Ҩ��繸ҵ��㹡��˸ҵ��ͨ�Ÿҵ� ��ҧ��դ��Ӥѭ ��Ш��繵�͡��ԭ�Ժⵢͧ�ת��仡��ҡѹ��Ф��ԧ�� ҵطء�ҵ��դ��Ӥѭ��͡�ô�ç�վ�ͧ�ת�� ѹ �е�ҧ�ѹ��§��ҳ��ת��ͧ��ҹ�� ѧ��鹾ת�֧�Ҵ�ҵ�㴸ҵ�˹�� ҡ�ת�Ҵ�ҵ��§�ҵ�� ת��ش��ԭ�Ժ� �� ż�Ե��е��㹷��ش

˹�ҷ��ͧ�ҵ��þת

�ҵ��þת��Ъ�Դ�դ��Ӥѭ��͡��ԭ�Ժⵢͧ�תᵡ��ҧ�ѹ� ��ж�Ҿת��Ѻ�ҵ��§�͵�ͤ��ͧ�� ʴ��ҡ�÷��ᵡ��ҧ�ѹ��誹Դ�ͧ�ҵ��÷��Ҵ�Ź��


	��ਹ ��˹�ҷ��ǹ��Сͺ�ͧ�õչ ��ת�� 觡��ԭ�Ժ⵷ҧ� �ҡ�ת�Ҵ�ҵع��ʴ��ҡ��ͧ ��բ�Ҵ��ŧ �ӵ��ż�Ե��

	��ʿ�� ��˹�ҷ��觡��ԭ�Ժ��С��Ш�¢ͧ�ҡ �Ǻ��͡�͡ �͡�� С��ҧ�� Ҿת�Ҵ�ҵع��к��ҡ��ԭ�Ժ� ��¹�ҡ��ǧ��ǡ��չ�ӵ��ش��ǧ �ӵ��Դ͡�͡��

	�� �繸ҵط��㹡��ѧ��ӵ�� õչ ��͹��¹�ӵ�Ũҡ�� Ժ��դس�Ҿ�� ת��ç ��ҹ�ҹ��ä��ŧ�ҧ��Դ ��ҢҴ�ҵع��ת��ç �ӵ��͹�� ż�Ե��Ժ� �դس�Ҿ�� ʪҵ��

	�� ��ͧ��Сͺ��㹡�� ü�� ç͡�ͧ�� ת�Ҵ�ҵع��㺷��ԭ��˧ԡ�� ʹ��ԭ �Ҩ�ըش�ӷ�� ҡ�� ᵡ ��դس�Ҿ��

	�� ��ͧ��Сͺ�Ӥѭ�ͧ��ÿ�� ѧ��ô�� Ե��Թ ��ѹ ��й�ӵ�� Ҿ�ô��ҧ��Ъ��㹡�ç͡�ͧ�� ҢҴ�ҵع��ͧ ¡�� 㺨��ǧ��

	��жѹ ��ͧ��Сͺ�Ӥѭ�ͧ�ô�� õչ ��Ե��Թ ��ҢҴ�ҵع��㺺��ҧ��ͧ�մ ��е��͹��

	��͹ ��㹡��͡�͡��С�ü�� պ��ҷ�Ӥѭ㹡�õԴ��С��͹��¹�ӵ�� ͹��¢ͧ�� ª��ҡ��ਹ��С�� Ҿת�Ҵ�ҵع�� ʹ�е��յҢ�ҧ ��Ң�ҧ��е��ա �ӵ��״�� 㺨֧�Դ�ѹ �� ˹� ��

	�ͧᴧ ��㹡��ѧ��ÿ�� õչ�� е�鹡�÷ӧҹ�ͧ�͹��ҧ��Դ ��Ҿת�Ҵ�ҵع�� ʹ�ЪЧѡ��ԭ�Ժ��С��մ� ��͹��ͧ ��оת��駵鹨ЪЧѡ��ԭ�Ժ�

	��չ �պ��ҷ�ҧ��С��ǡѺ��㹾ת ��ҢҴ�ҵع��ת��ǧ�� իմ ��кҧ��ǹ��駵��

	�� ��㹡��ѧ��ÿ�� պ��ҷ�Ӥѭ㹡��ѧ��ʧ�� ҢҴ�ҵع��͹��բ�ǫմ㹢�з��ѧ��ʴ

	��ҹ�� ��㹡��ѧ��ʧ��С�÷ӧҹ�ͧ�͹��ҧ��Դ ��ҢҴ�ҵع��͹��ͧ㹢�з��ѧ�� 㺷��ҡ�ôѧ��Ǩ��ǧ��

	��Ժ�Թ�� ��ת��ਹ��繻��ª��Ǣ�ͧ�Ѻ��ѧ��õչ ��ҢҴ�ҵع��ת��ҡ�ä��¢Ҵ��ਹ ��ѡɳ��駤��¶�� ҡ��ش��ͧ� ��

	�ѧ�� ��㹡��ѧ��͡�Թ ��ÿ�� ҢҴ�ҵع��͹��ͧ�մ��л�ҡ��բ�� л��µ�� ѧ�� ҡ��ԭ��

��ա�û�١�תŧ��Թ ��ա��¹�ŧ��ҳ�ͧ�ҵ��õ�ҧ� ��㹴Թ ��ͧ�ҡ㹢�з��ת�ա��ԭ�Ժ� �ת�дٴ�֧�ҵ��㹴Թ��ǹ��ҧ� �� ӵ� �͡ �� ֧��Ǽż�Ե��й��͡仨ҡ��鹷�� ҵ��÷��ҹ��١��͡仨ҡ��鹷�� ͡�ҡ��ҵ��úҧ��ǹ�ѧ�Դ��٭��ٻ��ҫ �١�Թ��û�Сͺ㹴Թ�Ѻ�ִ�� ҧ��ǹ�١��ҧ�͡仨ҡ��ǳ�ҡ�ת ��٭��仡Ѻ��ê��ҧ�ѧ��¢ͧ�Թ �ѧ��鹡��л�١�ת�Դ��͡ѹ��ǹҹ ��ա��ҵ��ŧ�㹴Թ ��ش��ó�ͧ�ԹŴŧ ��㹷��ش�Թ�С��繴Թ��ǻ�١�ת��ԭ�Ժ��ա�� 㹡�û�١�ת�֧��ͧ�ա��ͺ��ا�Թ ��ҵ��þת��Ф��дѺ��ش��ó�ͧ�Թ��

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	Yara (Thailand) Ltd. ABC Guide to Mineral Fertilizers : A Basic Handbook on Fertilizers and Their Use. 28 p.