An Asian Journal of Soil Science

K. Radhika ¹, K. Arulmozhiselvan ¹, V. Velu ¹, S. Mahimairaja ¹, K. Kumar ¹

Affiliations
1 Department of Soil Science and Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN

Abstract

To study the nutriseed pack application of nutrients on the yield of maize, a field experiment was conducted with following treatments viz., T₁-Control; T₂-100 per cent NPK-Surface application of fertilizers; T₃, T₄, T₅ : 75, 100, and 125 per cent NPK-nutriseed pack (Plain); T₆-100 per cent NPK-nutriseed pack (Furadan); T₇-100 per cent NPK-nutriseed pack (neem); T₈-100 per cent NPK-nutriseed pack (fertilizer + manure mixture).The results of the experiment indicated the nutriseed pack with furadan recorded the highest grain yield of 4489 kg ha^-1 which was 13.2 per cent higher than surface broadcast, and stover yield of 7939 kg ha^-1 which was 20.3 per cent higher than surface broadcast. On an average nutriseed pack with furadan recorded more number of grains per cob (248), number of grains/row (17.2), number of rows/cob (14.4), number of cobs/100 m² (881).

Keywords

Nutriseed Pack, Deep Placement, Drip Irrigation, Maize.

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M. Paramasivan ¹, K. R. Kumaresan ², P. Malarvizhi ², S. Mahimairaja ², K. Velayudham ²

Affiliations
1 Agricultural College and Research Institute, Killikulam, Vallarad, Tuticorin (T.N.), IN
2 Agricultural College and Research Institute, Killikulam, Vallanad, Tuticorin (T.N.), IN

Abstract

The study was undertaken to find out the nutrient optima for maximum yield and the nutrient removal by hybrid maize through balanced fertilization by a systematic approach on soil fertility evaluation. In nutrient sorption study, the nutrients viz., phosphorus (P), potassium (K) and zinc (Zn) were found as limiting nutrients in these soils and these were considered as deficient nutrients. The optimum nutrient levels of NPK and Zn were fixed by sorption studies as 200: 64: 48 and 4.8 kg ha^-1 for this soil series. Nitrogen level was fixed for optimum nutrient treatment at 200 kg ha^-1 for this experimental soil series (N₂P₂K₂Zn) with a zero level and one below and one above this level of N were arrived. The field experiment was conducted at farmers’ field with maize (COHM 5) as a test crop. The highest grain yield (8005 kg ha^-1) was recorded in the treatment with 250:64:48:4.8 kg of NPK and Zn ha^-1. The highest total N uptake (260.80 kg ha^-1) of maize in Mayamankuruchi series was noticed in the treatment with 250:64:48:4.8 kg of NPK and Zn ha^-1. The application of 200:80:48:4.8 kg of NPK and Zn ha^-1 resulted in the highest total P uptake (74.80 kg ha^-1). The highest total K uptake (216.24 kg ha^-1) was observed for the treatment of 200:64:60:4.8 kg of NPK and Zn ha^-1. The application of 250:64:48:4.8 kg of NPK and Zn ha^-1 resulted in the highest total Zn uptake (1.597 kg ha^-1).

Keywords

Sorption Study, ASI, Optimum Nutrient Treatment, Mayamankuruchi, Soil Series, Zea Mays, Grain Yield, Nutrient Uptake.

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