Abstrak/Abstract |
More rational and balanced fertilization is one of the key factors to enhance
productivity and improve agricultural land especially in organic farming.
Oneoffertilizerneeded by crop to nutrient is agoatmanureandAzolla. This research
aimed to determine goatmanure andAzollaonsoil chemical propertiesand N
uptake inrice fieldsinSambirejo, Sragen. This Research was located in Dukuh,
Sukorejo, Sambirejo, Sragen and started on April-October2012.Soil pH, Corganic, CEC, totalN, available N, andN uptake were observed. Treatmentwere
control, 0 tons/ha goatmanure+ 3tons/ha Azolla, 0 tons/ha Azolla+3 tons/hagoat
manure, 3tons/ha goat manure +3tons/ha Azolla, 6 ton/hagoatmanure+ 0 tons/ha
Azolla, and 6 tons/ha goat manure+ 3 tons/ha Azolla. The results showed 3
tons/ha Azolla combined withgoatmanure0tons/ha, 3tons/ha, and6tons/hadid
notgivesignificantly differentforpH, CEC, C-organic, Ammonium, Nitrat, total N.
Organic fertilizerincreased the content of soilorganic matter, totalN, plant height,
number of tillers, andN shoot uptake. Nuptakeof riceroots and shoot
highestingoatmanure6tons/hagoat manureand3tons/ha Azolla but did not give
significantly different for productivity |