Field Evaluation of Subsoiling and Liquid Fertilizer Injection for Minimum Tillage of Sugarcane Planter (Part 2) - Effects of Subsoiling and Liquid Fertilizer Injection on Crop Growth
Isara CHAORAKAM, Anek SUKCHAROEN, Thanankorn JAIPHONG, Anucha WONGPRANEEKUL, Supanas SABANGBAN

Abstract
Field investigation of subsoiling and liquid fertilizer injection under minimum tillage practice of sugarcane planter has been tested. This experiment has been conducted at the field of National Agricultural Machinery Center (NAMC), Kasetsart University and Flying Training School, RTAF, Khampaengsaen in 2010. The seeding trial was done with three models of sugarcane planter including a conventional sugarcane planter (CP), subsoiling sugarcane planter (SP) and combination of subsoiling with liquid fertilizer injection sugarcane planter (SFIP). Significant of the three different models of the sugarcane planter, soil types and seeding depths has been discussed. Comparative study on this experiment under rain-fed condition found that the significant of soil types were found in the crop growth whereas the other major parameters and the interaction among the major parameters were found to be not significantly different in this specific research study. However, the growth of the crop has been showed satisfactorily done under SP and SFIP. These come from the fact that the growth of the crop has been proned to depend on the pertinent quality of the soil such as organic matter, soil moisture, and tillage management. Subsoiling and liquid fertilizer can improve the aeration, infiltration, drainage rate, the moisture in soil and subsoil improvement lead to improve the growth of sugarcane crop under minimum tillage practice.

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