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The experiment was conducted to evaluate rice growth and yield as affected by different coating and covering materials such as a iron, silicate, iron and silicate mixture of rice seeds in farmer's rice growing field. The tiller number was 36.7 at iron-coated seeds, 32.8 at silicate-covered seeds, 30.3 at iron and silicate mixture coated seeds and 30.2 at untreated control in 44days after seeding. The seedling height was 38.2cm of iron and silicate mixture, 37.7cm of untreated control, 36cm of iron-coated and 35.7cm of silicate covered seeds in 43days after seeding. At 75days after seeding rice tiller number was 153 of iron-coated seeds, 152 of silicate-covered seeds, 147 of untreated seeds and 141 of iron and silicate mixture-coated seeds and also there were different plant height growth of 87.4cm in silicate-covered seeds, 85.7cm in iron and silicate mixture, 85.4cm in untreated control and 83.0cm in iron-coated seeds. The panicle length was of 21.0cm in iron and silicate mixture coated seeds, 20.8cm in silicate covered seeds, 20.7cm in untreated control seeds and 20.6cm in iron-coated seeds. The panicle number was 464 at iron-coated seeds, 404 at untreated control seeds, 427 at silicate-covered seeds and 412 at iron and silicate mixture coated seeds. The spikelet number per m2 was of 32,503 in iron-coated seeds, 31,813 in silicate-covered seeds, 29,646 in untreated control, 28,896 in iron and silicate mixture coated seeds. The ripened ratio of rice grain was of 94.5% at iron-coated seeds, 93.9% at iron and silicate mixture coated seeds, 93.6% at silicate covered seeds and 93.2% at untreated control seeds. The rice yield was of 591kg/10a at iron-coated seeds, 580kg/10a at silicate-covered seeds, 571kg/10a at iron and silicate mixture-coated seeds and 539kg/10a at untreated control.
농가 포장에서 코팅소재별 벼 생육 및 수량성을 구명하기 위하여 무처리, 철분코팅, 규산복토, 철분코팅 + 규산복토 처리에서 파종 후 44일, 77일에 경수와 초장을 조사하였으며, 간장, 수장, 이삭수, 벼알수, 등숙비율과 무게 등의 수량 구성요소 조사결과를 요약하면 다음과 같다. 1. 파종 후 43일에 조사된 경수는 철분코팅 36.7개, 규산복토 32.8개, 철분코팅 + 규산복토 30.3개, 무처리 30.2개 순으로 나타났고, 초장은 철분코팅 + 규산복토 38.2cm, 무처리 37.7cm, 철분코팅 37.3cm, 규산복토 36.7cm 순으로 나타났다. 2. 파종 후 75일에 조사된 주간의 1m 이내 경수는 철분코팅 1537개, 규산복토 152개, 무처리 147개, 철분코팅 + 규산복토 141개 순으로 나타났으며, 초장은 규산복토 87.4cm, 철분코팅 + 규산복토 85.7cm, 무처리 85.4cm, 철분코팅 83cm 순으로 나타났다. 3. 벼 성숙기 간장은 규산복토 85.5cm, 철분코팅 + 규산복토 84.3cm, 무처리 83.3cm, 철분코팅 종자 82.5cm 순으로 나타났다. 4. 수장은 철분코팅 + 규산복토 21.0cm, 규산복토 20.8cm, 무처리 20.7cm, 철분코팅 20.6cm 순으로 나타났으며, m2당 이삭수는 철분코팅 32,503개, 무처리 29,646개, 규산복토 31,813개, 철분코팅 + 규산복토 28,896개 순으로 나타났다. 5. 등숙비율은 철분코팅 94.5%, 철분코팅 + 규산복토 93.9%, 규산복토 93.6%, 무처리 93.2% 순으로 나타났다. 6. 단보당 쌀수량은 철분코팅 591kg, 규산복토 580kg, 철분코팅 + 규산복토 571kg, 무처리 539kg 순으로 높게 나타났다.