论文部分内容阅读
1配方施肥科学用药,攻克重茬障碍重茬病害是当今农业第一大病害,来势汹汹,席卷全国,仅20多年,病灾遍及各种作物。1.1重茬病害三大表现烂根死棵.发育不良.低产。具体到各种作物的表现:①大棚蔬菜:烂根死棵,植株瘦弱,果小畸形,叶不正常。②果树:树体衰弱,烂枝流胶,果丑多病,产量不高。③林木:长势缓慢,瘦弱早衰。④茶和桑:萌芽推迟,枝细芽瘦,叶小黄薄。⑤西瓜:烂根死棵,难座瓜,水瓤瓜。
1 Formula fertilization scientific medication to overcome obstacles crop stubble Disease is today’s largest agricultural disease, menacing, sweeping the country, only 20 years, the disease spread throughout a variety of crops. 1.1 stubble disease three main manifestations of rotten root dead tree, poor growth, low yield. Specific to the performance of a variety of crops: ① greenhouse vegetables: dead root tree, thin plants, small fruit deformities, leaves are not normal. ② fruit trees: the tree is weak, rotten branches flow gum, fruit ugly sick, the yield is not high. ③ forest: slow growth, thin and weak premature aging. ④ tea and mulberry: sprouting postponed, bud thin bud thin yellow leaves thin. ⑤ watermelon: rotten root dead tree, hard seat melon, water melon melon.