| Study on the effect of tillage on the change of soil properties, nitrogen leaching away from root zone, yield and plant nutrient uptake of maize grown on Warin soil series (Arenic Haplustult) was carried out in Ban Nonsomboon, Krissana sub-district, Sikhiu Nakhon district, Nakhon Ratchasima province. The experimental design employing randomized complete block design consisted of four various tillage methods as follow; conventional tillage (using 3-disc followed by 7-disc plough), reduced tillage (using only 7-disc plough), mulch tillage (using 7-disc plough with plant residues left to cover soil surface) and no-tillage. Results showed that conventional tillage tended to give a maximum grain yield of 566 kg/rai. The lowest amount of grain yield (479 kg/rai)... |
