Cov ntsiab lus thiab cov ntsiab lus: Dej- cov chiv soluble yog cov chiv uas muaj nitrogen, phosphorus, thiab potassium ua nws cov tub ntxhais (N + P₂O₅ + K₂O Ntau dua lossis sib npaug li 50%). Nws tuaj yeem muaj cov micronutrients ntxiv xws li calcium, magnesium, zinc, thiab boron. Nws ua tiav cov dej solubility tso cai rau nws xa ncaj qha mus rau cov hauv paus hniav los ntawm kev tso dej, txuag ntau tshaj 60% dej ntau dua li cov tshuaj txau. Kev ntsuas qhov tseeb ntawm cov txiv kab ntxwv hauv qab ntawm Jiangxi qhia tau hais tias cov ntsiab lus qab zib ntawm cov txiv hmab txiv ntoo kho nrog dej-soluble chiv tau nce 2.3 degrees Brix. Nws yog ib qho tseem ceeb los xyuas qhov solubility thaum yuav cov chiv, vim tias cov chiv tsis zoo tuaj yeem yooj yim txhaws cov kav dej hauv cov kav dej (piv txwv li, cov neeg ua liaj ua teb yuav siv sijhawm ob hnub tshem cov kav dej vim muaj teeb meem ntau dhau).
National Standards: Tus qauv tam sim no NY1107-2010 qhia tias cov chiv chiv yuav tsum muaj ntau dua lossis sib npaug li 50% tag nrho cov as-ham thiab kua chiv Ntau dua lossis sib npaug li 400g / L. Cov kev cai tshiab rau humic acid hauv 2025 tseem nruj dua, txo cov ntsiab lus arsenic rau 5mg / kg thiab cadmium rau 1mg / kg, ntxiv thallium thiab vanadium kuaj, thiab xav tau cov molecule me (<1000Da) active components to be ≥30%. Experiments in the Poyang Lake Plain showed that humic acid fertilizer conforming to the new regulations advanced the tillering stage of rice by 3 days and increased rice yield by 46 jin per mu. A test report is required when selecting fertilizer.
Txoj kev thov
1. Drip Irrigation: 2-5 kg / mu / zaug, txhua 7-15 hnub. Ua ntej thov, drip cov tshuaj chiv rau 30 feeb kom lubricate cov kav dej nrog cov dej huv, tom qab ntawd yaug cov tshuaj chiv, thiab thaum kawg yaug cov kav dej nrog dej huv rau 20 feeb (tsis li ntawd, nplai yuav tsim rau ntawm cov drippers, txo cov dej tawm los ntawm 40%).
2. Fertigation: 5-10 kg / mu, diluted 1000-2000 zaug nrog dej thiab thov tusyees (tsis txhob siv cov hmoov ncaj qha, uas tuaj yeem hlawv cov hauv paus hniav).
3. Foliar Spray: Thaum muaj cov zaub mov tsis txaus, sib tov 100g ntawm chiv nrog 50-100kg dej thiab tshuaj tsuag, zam lub sij hawm kub ntawm 10:00-15:00 (zoo kho kab mob nplooj daj hauv Fuzhou tangerine orchards txhua 7 hnub).
Qhov zoo:
1. Kev nqus tau siab: Kev siv tus nqi nce mus txog 80% -90% (cov tshuaj chiv chiv tsuas yog 30% -40%), nce nitrogen siv tus nqi ntawm cov nplej thaum ntxov hauv Ji'an los ntawm 2.3 npaug, txuag 20 catties ntawm chiv ib mu.
2. Kev ua haujlwm thiab kev txuag dej: Thaum siv cov drip irrigation, nws txuag tau 3 cubic meters ntawm ib mu ib daim ntawv thov, txo cov nqi zog ntawm 70% (txo cov neeg ua haujlwm hauv Yongxiu vineyards ntawm 10 mus rau 3).
3. Flexible formula: Adjustable raws li kev loj hlob theem (xws li, siab nitrogen 30-10-10 rau yub theem, siab phosphorus 10-50-10 rau flowering theem, thiab siab poov tshuaj 10-10-40 rau fruit expansion theem), nce camellia oleifera yield nyob rau yav qab teb Jiangxi los ntawm 27%.
4. Ib puag ncig tus phooj ywg: chlorine-dawb thiab hnyav hlau-dawb, saib xyuas ib ncig ntawm Poyang Lake qhia tau hais tias av organic teeb meem nce los ntawm qhov nruab nrab ntawm 0.12% ib xyoos ib zaug, thiab acidification tus nqi qeeb los ntawm 60%.
