Stainless Steel Fertillizer Belt 不锈钢撒肥带
recommended rate of fertillizer application 施肥标准
fertillizer pollution 肥料污染
p compound fertillizer 磷复肥
Potassium fertillizer increased grain number per ear, improved grain weight, improved stem pole substantial degree, strengthened the ability of resisting lodging.
钾素能增加穗粒数，提高粒重，提高茎秆充实度，增强抗倒伏能力。
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