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คณะเกษตรศาสตร์ มหาวิทยาลัยเชียงใหม่

 

  ISSN: 0857-0841 (Print)
  ISSN: 2630-029X (Online)
 


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"Article Journal of Agriculture"
Volume 35 Issue 1 January 2019 , ISSN 0857-0841
Title. : Effects of Green Manures and Fertilizer Managements on Yield, Nutrient Uptake and Economic Return of Rice cv. RD47 Grown in Ayutthaya Soil Series
Author : Saychol Sukyankij, Thanapat Pluemphuak and Thanawan Panich-pat
Page : 61-73
index word : ปุ๋ยพืชสด (Green manure), ปุ๋ยเคมี (chemical fertilizer), ปุ๋ยอินทรีย์ (organic fertilizer), ข้าวพันธุ์ กข47 (rice cv. RD47), ชุดดินอยุธยา (Ayutthaya soil series)
Abstract:
Due to the current situation of rice prices decline, management of production factors, especially the use of fertilizers by farmers, is important in agricultural practice. The objective of this research was focused to study the effect of green manures and fertilizer managements on yield, nutrient uptake and the economic return of rice cv. RD47 cultivated in Ayutthaya soil series. The experiment was arranged in a factorial in randomized complete block design with three replications. The first factor consisted of no green manure (A1), mungbean (A2) and soybean (A3). The second factor consisted of no fertilizer (B1), chemical fertilizers at the same rate of nutrients from organic fertilizers at 500 kg/rai (B2) and organic fertilizer at 500 kg/rai (B3). The results showed that the application of soybean as a green manure with organic fertilizer gave the highest yield (1,048.0 kg/rai). In addition, the highest nutrient uptake both seeds and whole plants (10.5, 2.4 and 3.7 kg N-P-K/rai in seed and 15.4, 3.2 and 23.4 kg N-P-K/rai in whole plant). However, when considering the economic return, it was found that the treatment of soybean as the green manure with chemical fertilizer gave the highest economic return (9,242.78 baht/rai). Soil properties after harvest were found that the use of mungbean as green manure with chemical fertilizer tended to maintain the highest soil fertility.
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