Lawn topdressing tuaj yeem ua tshuaj chiv lossis organic chiv. Thaum siv tshuaj chiv, xyuam xim rau cov ntsiab lus hauv qab no: 1. Qhov piv ntawm N: P: K yuav tsum tau tswj ntawm 5: 4: 3; 2. Kev siv av dav dav yog 20 kg / mu; 3. Raws li qhov xwm txheej, fertilize lub caij nplooj zeeg nyob rau sab qab teb thiab fertilize lub caij nplooj ntoos hlav nyob rau sab qaum teb; 4. Fertilization thiab watering yuav tsum tau ua tib zoo sib koom tes los tiv thaiv kev puas tsuaj rau cov nyom los ntawm kev siv tsis raug. Yog tias ua tau, nws yog qhov zoo tshaj plaws los siv qhov sib piv zoo ntawm cov kua chiv. Organic chiv feem ntau yog siv rau lub sijhawm dormant ntawm cov nyom, thiab qhov ntau npaum li cas yog 1000-1500 kg / mu, thiab siv ib zaug txhua 2-3 xyoos. Daim ntawv thov ntawm cov organic chiv tsis tau tsuas yog txhim kho av porosity thiab permeability, tab sis kuj pab cov nyom kom ciaj sia lub caij ntuj no yam xyuam xim.
