Efficacy Of Soil Amendments Research Articles

Efficacy of soil amendments on agronomic traits, yield and nutritional quality of Sweet Corn (Zea mays L. var. saccharata)

Efficacy of soil amendments on agronomic traits, yield and nutritional quality of Sweet Corn (Zea mays L. var. saccharata)

Organic and non-organic soil amendments as sound method to combat chickpea wilt’s soilborne fungus Fusarium oxysporumf.sp. ciceris

A field trial was conducted to evaluate the efficacy of soil amendments with organic compost and synthetic (chemical fertilizers) on suppressing the pathogen of chickpea wilt, Fusariumoxysporumf.sp. ceceris. In the experiment four levels of a mixed poultry-plant compost (7.5, 15, 22.5, and 30 t/ha) and four levels of the compound fertilizer, NPK, (100, 200, 300, and 400 kg/ha) were evaluated and compared with untreated control. Results revealed that there were significant effects of organic compost on decreasing disease incidence and severity at the level of 30 t/ha. The use of high levels of NPK (300 and 400 kg/ha) were also effective in lowering the disease. The efficiency of organic matter on the level of 30 t/ha was as much as 55.61% followed by using synthetic fertilizer at the level of 400 kg/ha (44.57%). The uses of the previous treatments were also effective to gain higher yield of chickpea. The highest yield was obtained when the soil amended with organic matter at the levels of 30 t/ha and 22.5 t/ha followed by using of NPK at 400 kg/ha.

Efficacy of Soil Amendment with Leaf Powder of Hyptis suaveolens (L.) Poit in the Control of Meloidogyne javanica (Treub) Chitwood on the African Yam Bean, Sphenostylis stenocarpa (Hochst Ex A. Rich) Harms

Efficacy of Soil Amendment with Leaf Powder of Hyptis suaveolens (L.) Poit in the Control of Meloidogyne javanica (Treub) Chitwood on the African Yam Bean, Sphenostylis stenocarpa (Hochst Ex A. Rich) Harms

Efficacy of Soil Amendment with Medicinal Plant Materials for the Control of Root-knot Nematode (Meloidogyne incognita) in Tomato

Soil amendments with oriental herbal medicines such as fruit of Anethum graveolens, flower buds of Syzygium aromaticum, rhizome of Cnidium officinale, rhizome of Coptis chinensis, root bark of Paeonia suffructicosa, stem bark of Phellodendron amurense, and stem bark of Cinnamomum cassia at the rate of 0.2% (weight by volume of soil) significantly reduced Meloidogyne incognita infection (root gall formation) of tomato seedlings compared with the control. The most effective treatments were root bark of P. suffructicosa and stem bark of C. cassia as they gave minimum numbers of galls on tomato roots (4.7% and 8.9%, respectively, relative to control) as compared to other treatments. Another study with root bark of P. suffructicosa and C. cassia at different application doses also showed consistent results in reducing gall number. The control efficacy decreased as the application doses were lowered, indicating their dose-dependent control activities. These treatments significantly enhanced aboveground plant growths (total masses).