Tình hình xâm nhập mặn và biện pháp kỹ thuật canh tác dừa của nông hộ tại tỉnh Bến Tre

Abstract

In Ben Tre, coconut (Cocos nucifera L.) is a main industrial crop with the largest growing area in Vietnam and are increasing day by day. In recent years, coconut production has been affected by saline intrusion. This study was conducted to evaluate the situation of coconut cultivation under salinity conditions via interviewing households in five districts including Chau Thanh, Giong Trom, Ba Tri, Thanh Phu, and Binh Dai, Ben Tre province, Vietnam. The results showed that during the dry season, salt water intruded into 100% of coconut gardens surveyed in Giong Trom, Ba Tri, Thanh Phu, Binh Dai districts, but 0% of coconut gardens in Chau Thanh district suffered from salt intrusion. Farmers apply farming techniques such as watering (33.3 to 96.7%), applying mud to coconut trees (over 76.6%), and weeding coconut gardens (over 80%). There are 10.0 to 70.0% of households applying inorganic fertilizer during the basic construction period and 13.3 to 93.3% applying during the business period; Fertilization frequency is from 4 to 6 times per year. There are 10.0 to 70.0% and 50.0 to 96.7% of households applying organic fertilizer during the initial period and harvested period, respectively; Fertilization frequency is 3 to 4 times per year. It is necessary to evaluate the influence of water salinity and farming techniques on the growth and development of coconut trees in order to complete a reasonable technical process of coconut production, contributing to the sustainable development of coconut trees in Ben Tre province.