AN APPROACH TO THE RELATIONSHIP BETWEEN CHANGES OF AGRO-ECOSYSTEM AND OCCURRENCE OF DISEASE AND INSECT PESTS

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cje ›› 1982, Vol. ›› Issue (3): 5-7.

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AN APPROACH TO THE RELATIONSHIP BETWEEN CHANGES OF AGRO-ECOSYSTEM AND OCCURRENCE OF DISEASE AND INSECT PESTS

Qin Xigui

Jianli Agricultural School, Hubei Province

Received:1981-11-09 Online:1982-07-10

Abstract

Abstract: According to the variations of disease and insect pests after the reclamation of uncultivated islet and land, reform of cultivation system and popularization of high-productive improved variety, this paper illustrated the relationship between changes of agro-ecosystem and population of disease and insect and put forward some measures against the occurrence of disease and insect pests.

Key words: Pinus sylvestris var. mongolica, Sand fixing plantation forest, Natural regeneration, Regeneration barriers

Qin Xigui. AN APPROACH TO THE RELATIONSHIP BETWEEN CHANGES OF AGRO-ECOSYSTEM AND OCCURRENCE OF DISEASE AND INSECT PESTS[J]. cje, 1982, (3): 5-7.

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AN APPROACH TO THE RELATIONSHIP BETWEEN CHANGES OF AGRO-ECOSYSTEM AND OCCURRENCE OF DISEASE AND INSECT PESTS

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